Save yourself the work of writing custom integrations for Alchemy and Postgres and use n8n instead. Build adaptable and scalable Development, and Data & Storage workflows that work with your technology stack. All within a building experience you will love.
Step 1: Create a new workflow and add the first step
In n8n, click the "Add workflow" button in the Workflows tab to create a new workflow. Add the starting point – a trigger on when your workflow should run: an app event, a schedule, a webhook call, another workflow, an AI chat, or a manual trigger. Sometimes, the HTTP Request node might already serve as your starting point.
Step 2: Add and configure Postgres and Alchemy nodes (using the HTTP Request node)
You can find the Postgres node in the nodes panel and drag it onto your workflow canvas. To add the Alchemy app to the workflow select the HTTP Request node and use the generic authentication method to make custom API calls to Alchemy. Configure Alchemy and Postgres one by one: input data on the left, parameters in the middle, and output data on the right.
Step 3: Connect Postgres and Alchemy
A connection establishes a link between Postgres and Alchemy (or vice versa) to route data through the workflow. Data flows from the output of one node to the input of another. You can have single or multiple connections for each node.
Step 4: Customize and extend your Postgres and Alchemy integration
Step 5: Test and activate your Alchemy and Postgres workflow
Save and run the workflow to see if everything works as expected. Based on your configuration, data should flow from Alchemy to Postgres or vice versa. Easily debug your workflow: you can check past executions to isolate and fix the mistake. Once you've tested everything, make sure to save your workflow and activate it.
Build your own Alchemy and Postgres integration
Create custom Alchemy and Postgres workflows by choosing triggers and actions. Nodes come with global operations and settings, as well as app-specific parameters that can be configured. You can also use the HTTP Request node to query data from any app or service with a REST API.
Supported API Endpoints for Alchemy
To set up Alchemy integration, add the HTTP Request node to your workflow canvas and authenticate it using a generic authentication method. The HTTP Request node makes custom API calls to Alchemy to query the data you need using the API endpoint URLs you provide.
Nfts
Transfers
Transaction_receipts
Token
Webhooks
Trace
Accounts
Policies
Sponsorships
Simulation
Gas-optimized-transactions
Private-transactions
Eth
Polygon
Zkevm
Transactions
Uncle
Filters
Network
Client
Web3
Access
Net
Inflationrate
Inflationreward
Largestaccounts
Maxretransmitslot
Maxshredinsertslot
Minimumbalanceforrentexemption
Multipleaccounts
Programaccounts
Recentperformancesamples
Signaturesforaddress
Signaturestatuses
Slot
Slotleader
Slotleaders
Supply
Starknet
Nft
Webhook
Traces
Debug
Account
Feehistory
User-operation
Contracts
Blocks
Gas
Ethereum
Gasprice
Transactionreceipt
Newfilter
Uninstallfilter
Gettransactionbyblockhashandindex
Getcode
Blocknumber
Call
Chainid
Estimategas
Syncing
Subscribe
Unsubscribe
Spam_detection
Tokens
Assets
Nft metadata
Contract metadata
Polygon pos
Polygon zkevm
Uncles
Proofs
Receipts
Optimism
Solana
Transaction
Contract
Transfer
Block
Developer
Get NFTs for Owner
Fetches the NFTs owned by a specific address.
GET
/reference/getnftsforowner-v3
Get Owners for NFT
Returns the addresses of owners for a specific NFT.
GET
/reference/getownersfornft-v3
Get Owners for Contract
Lists owners for a given contract.
GET
/reference/getownersforcontract-v3
Check if Holder of Contract
Verifies if an address holds a specific contract's NFTs.
GET
/reference/isholderofcontract-v3
Get Contracts for Owner
Gets all NFT contracts that a specific address owns.
GET
/reference/getcontractsforowner-v3
Get Collections for Owner
Retrieves all NFT collections owned by a specific address.
GET
/reference/getcollectionsforowner-v3
Get NFT Metadata
Fetches metadata for a specific NFT.
GET
/reference/getnftmetadata-v3
Get NFT Metadata Batch
Retrieves metadata for multiple NFTs in a single request.
POST
/reference/getnftmetadatabatch-v3
Get Contract Metadata
Fetches metadata for a specific NFT contract.
GET
/reference/getcontractmetadata-v3
Invalidate Contract
Invalidates a specific NFT contract.
GET
/reference/invalidatecontract-v3
Refresh NFT Metadata
Refreshes the metadata for a specific NFT.
POST
/reference/refreshnftmetadata-v3
Get asset transfers
Retrieve all asset transfers.
GET
/reference/sdk-getassettransfers
Get minted NFTs
Retrieve NFTs that have been minted.
GET
/reference/sdk-getmintednfts
Verify NFT ownership
Verify ownership of a specific NFT.
GET
/reference/sdk-verifynftownership
Get owners for NFT
Get a list of owners for a specified NFT.
GET
/reference/sdk-getownersfornft
Get NFT metadata
Retrieve metadata for a specific NFT.
GET
/reference/sdk-getnftmetadata
List NFTs for owner
Fetch the NFTs owned by a specific address.
GET
/reference/sdk-getnfts
Get NFT sales
Access sales information for a specific NFT.
GET
/reference/sdk-getnftsales
Get NFTs for contract
Fetches NFTs associated with a specified contract.
GET
/sdk/getnftsforcontract
Get NFTs for owner
Retrieves NFTs owned by a specific wallet.
GET
/sdk/getnftsforowneriterator
Get NFT filters
Retrieve NFT filters that are set up.
GET
/reference/getnftfilters-sdk-v3
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Fetches a list of asset transfers for a given criteria.
POST
/reference/alchemy-getassettransfers
Get transfers for owner
Fetches transfer history for a specified owner.
GET
/sdk/gettransfersforowner
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Retrieves the receipts for a specific transaction.
POST
/reference/alchemy-gettransactionreceipts
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Fetches the balances of tokens for a given address.
POST
/reference/alchemy-gettokenbalances
Get token metadata
Retrieves metadata for a specified token.
POST
/reference/alchemy-gettokenmetadata
Get token allowance
Checks the allowance for the specified token between two addresses.
POST
/reference/alchemy-gettokenallowance
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Deletes a specified variable from custom webhooks.
DELETE
/reference/delete-custom-webhook-variable
Update a variable
Updates an existing variable in custom webhooks.
PATCH
/reference/update-custom-webhook-variable
Get all webhooks
Retrieves a list of all webhooks registered.
GET
/reference/team-webhooks
Create a webhook
Creates a new webhook for notifications.
POST
/reference/create-webhook
Delete a webhook
Deletes a specified webhook from the system.
DELETE
/reference/delete-webhook
Get all webhooks
Retrieves all webhooks associated with the account.
GET
/reference/getallwebhooks-sdk-v3
Create webhook
Creates a new webhook in the account.
POST
/reference/createwebhook-sdk-v3
Update webhook
Updates an existing webhook in the account.
PUT
/reference/updatewebhook-sdk-v3
Delete webhook
Deletes a specified webhook from the account.
DELETE
/reference/deletewebhook-sdk-v3
Create webhook
Creates a new webhook.
POST
/sdk/createwebhook
Update webhook
Updates an existing webhook.
PUT
/sdk/updatewebhook
Delete webhook
Deletes a specified webhook.
DELETE
/sdk/deletewebhook
Get all webhooks
Retrieves all webhooks.
GET
/sdk/getallwebhooks
Get all addresses for an Address Activity webhook
Retrieve all addresses related to a specific webhook.
GET
/reference/webhook-addresses
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Retrieves detailed tracing information for a specific block.
POST
/reference/trace-block
Trace call
Executes a tracing call to obtain detailed information about a transaction.
POST
/reference/trace-call
Get trace information
Retrieves trace details for a given transaction or block.
POST
/reference/trace-get
Raw transaction trace
Gets the trace data for a raw transaction.
POST
/reference/trace-rawtransaction
Replay block transactions
Replays transactions from a specific block for tracing.
POST
/reference/trace-replayblocktransactions
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Allows the user to sign a message for verification purposes.
POST
/reference/signmessage
Register new authenticator
Registers a new authenticator for the user.
POST
/reference/registernewauthenticator
Get accounts
Retrieve a list of accounts.
GET
/reference/eth-accounts-polygon
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Retrieves the sponsorships associated with the policies.
GET
/reference/get-sponsorships
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Simulates a bundle of asset changes in a transaction.
POST
/reference/alchemy-simulateAssetChangesBundle
Simulate execution
Simulates the execution of a transaction.
POST
/reference/alchemy-simulateExecution
Simulate execution bundle
Simulates a bundle execution of transactions.
POST
/reference/alchemy-simulateExecutionBundle
Simulate asset changes
Simulates changes for the specified assets.
POST
/reference/alchemy-simulateassetchanges
Simulate execution
Simulates the execution of a transaction.
POST
/reference/alchemy-simulateexecution
Simulate execution bundle
Simulates execution for a bundle of transactions.
POST
/reference/alchemy-simulateexecutionbundle
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Returns changes to the filter since the last poll.
GET
/reference/eth-getfilterchanges-base
Send raw transaction
Submits a raw transaction to the network.
POST
/reference/eth-sendrawtransaction-base
Get block receipts
Fetches receipts for transactions in a block.
GET
/reference/eth-getblockreceipts-base
Get logs
Retrieves logs matching the specified parameters.
GET
/reference/eth-getlogs-base
Get proof
Retrieves a proof of the state of an account at a certain block.
GET
/reference/eth-getproof-base
Get uncle by block hash and index
Gets information about an uncle block by its hash and index.
GET
/reference/eth-getunclebyblockhashandindex-base
Get uncle count by block hash
Returns the count of uncles for a specific block by its hash.
GET
/reference/eth-getunclecountbyblockhash-base
Get block number
Returns the number of the most recent block.
GET
/reference/eth-blocknumber-base
Get balance
Fetches the balance of an Ethereum account.
POST
/reference/eth-getbalance-zksync
Get block by number
Retrieves a block based on its number.
POST
/reference/eth-getblockbynumber-zksync
Get transaction by hash
Fetches a transaction based on its hash.
POST
/reference/eth-gettransactionbyhash-zksync
Send raw transaction
Submits a signed transaction to the Ethereum network.
POST
/reference/eth-sendrawtransaction-zksync
Estimate gas
Estimates the gas required to execute a transaction.
POST
/reference/eth-estimategas
Get block transaction count by number
Returns the number of transactions from the specified block.
GET
/reference/eth-getblocktransactioncountbynumber
Get uncle by block hash and index
Returns information about one uncle of a block.
GET
/reference/eth-getunclebyblockhashandindex
Get uncle count by block number
Returns the number of uncles in a block by its number.
GET
/reference/eth-getunclecountbyblocknumber
Get transaction count
Returns the number of transactions sent from an address.
POST
/reference/eth-gettransactioncount-base
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Retrieves the changes since the last call to get filter logs.
POST
/reference/eth-getfilterchanges-polygon
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Fetches the current batch number on Polygon zkEVM.
POST
/reference/zkevm-batchnumber-polygon-zkevm
Estimate fee
Estimates the transaction fee on Polygon zkEVM.
POST
/reference/zkevm-estimatefee-polygon-zkevm
Get batch by number
Fetches a batch of transactions based on its number.
POST
/reference/zkevm-getbatchbynumber-polygon-zkevm
Get broadcast URI
Retrieves the broadcast URI for zkEVM.
POST
/reference/zkevm-getbroadcasturi-polygon-zkevm
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Returns transaction details using its transaction hash.
POST
/reference/eth-gettransactionbyhash-arbitrum-1
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Check if the client is actively connected to other peers.
GET
/reference/net-listening-arbitrum
Get network version
Get the current network ID the client is connected to.
GET
/reference/net-version-arbitrum
Get current gas price
Retrieves the current gas price for the network.
GET
/eth-gasprice
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Retrieve the current version of the Ethereum client.
GET
/reference/web3-clientversion-arbitrum
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Retrieve the version of the connected Ethereum client.
POST
/reference/web3-clientversion-arbitrum
Get client version
Returns the current client version being used.
GET
/reference/web3-clientversion-optimism
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Check if the node is active and listening for connections.
POST
/reference/net-listening-base
Get network version
Returns the version of the current network.
POST
/reference/net-version-polygon-zkevm
Check if the client is listening
Verify if the client is currently listening for messages.
POST
/reference/net-listening-arbitrum
Get listening status
Checks if the client is actively listening for network connections.
GET
/reference/net-listening-base
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Retrieve the minimum balance required for rent exemption.
POST
/reference/getminimumbalanceforrentexemption
Get minimum balance for rent exemption
Retrieves the minimum balance required for rent exemption.
GET
/reference/getminimumbalanceforrentexemption
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Retrieves information for multiple accounts at once.
GET
/reference/getmultipleaccounts
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Retrieves accounts associated with a specific program.
GET
/reference/getprogramaccounts
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Retrieves the recent performance samples for the network.
GET
/reference/getrecentperformancesamples
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Retrieve signatures associated with a specific address.
POST
/reference/getsignaturesforaddress
Get signatures for address
Retrieves the transaction signatures for a specific address.
GET
/reference/getsignaturesforaddress
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Retrieves the statuses of the specified signatures.
GET
/reference/getsignaturestatuses
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Retrieves the transaction count for a specific block.
POST
/reference/starknet-getblocktransactioncount
Get transaction receipt
Fetches the receipt of a transaction by its hash.
POST
/reference/starknet-gettransactionreceipt
Get block with transaction hashes
Retrieves a block along with its transaction hashes.
POST
/reference/starknet-getblockwithtxhashes
Get pending transactions
Retrieves all pending transactions in StarkNet.
POST
/reference/starknet-pendingtransactions
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Retrieves NFTs associated with a specific contract.
GET
/sdk-getnftsforcontractiterator
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Retrieve traces based on specific filtering criteria.
POST
/reference/trace-filter
Replay transaction
Replay a specific transaction.
POST
/reference/trace-replaytransaction
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
This endpoint allows tracing a specific transaction.
POST
/reference/debug-tracetransaction
Trace block by number
This endpoint retrieves trace information for a specific block by its number.
POST
/reference/debug-traceblockbynumber
Trace block by hash
This endpoint retrieves trace information for a specific block by its hash.
POST
/reference/debug-traceblockbyhash
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
This endpoint retrieves the receipt for a user operation.
POST
/reference/eth-getuseroperationreceipt
Get supported entry points
This endpoint retrieves the supported entry points for user operations.
POST
/reference/eth-supportedentrypoints
Get user operation by hash
This endpoint retrieves details about a user operation based on its hash.
POST
/reference/eth-getuseroperationbyhash
Send user operation
This endpoint sends a user operation to the network.
POST
/reference/eth-senduseroperation
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Fetch historical fee data for transactions on the Ethereum network.
POST
/reference/eth-feehistory-base
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Retrieve transfer history for a specific contract.
GET
/reference/sdk-gettransfersforcontract
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Retrieves a block's details given its block number.
POST
/reference/eth-getblockbynumber-arbitrum
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Returns the fee history of a specific block range.
GET
/reference/eth-feehistory
Get gas price
Returns the current gas price in wei.
GET
/reference/eth-gasprice
Get transaction receipt
Returns the receipt of a transaction by transaction hash.
GET
/reference/eth-gettransactionreceipt
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Returns the number of gas units paid per computation.
POST
/reference/eth-gasprice-polygon-zkevm
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Retrieve the receipt of a transaction by its hash.
POST
/reference/eth-gettransactionreceipt-polygon
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Creates a new filter object to notify when the state changes.
POST
/reference/eth-newfilter-polygon-zkevm
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Remove a previously added filter from the web3 provider.
POST
/reference/eth-uninstallfilter-base
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Fetch the current block number on the Ethereum blockchain.
POST
/reference/eth-blocknumber-base
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Call a smart contract function and get its output.
POST
/reference/eth-call-base
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Retrieve the chain ID of the connected Ethereum network.
POST
/reference/eth-chainid-base
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Estimate the amount of gas a transaction will require.
POST
/reference/eth-estimategas-base
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Check if the node is currently syncing with the Ethereum network.
POST
/reference/eth-syncing-base
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Subscribe to websocket events for blockchain changes.
POST
/reference/eth-subscribe-optimism
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Fetch the balance of tokens for a specific address.
GET
/reference/sdk-gettokenbalances
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Searches for metadata related to a specified contract.
GET
/sdk/searchcontractmetadata
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Retrieves the current validators in the Polygon PoS network.
GET
/reference/bor-getcurrentvalidators-polygon
Get balance
Fetches the Ether balance of the specified address.
GET
/reference/eth-getbalance-polygon
Get block by hash
Retrieves the block information using the block hash.
GET
/reference/eth-getblockbyhash-polygon
Get block by number
Retrieves the block information by the specified block number.
GET
/reference/eth-getblockbynumber-polygon
Get logs
Retrieves logs that match the specified filter criteria.
GET
/reference/eth-getlogs-polygon
Get transaction by hash
Fetches the transaction details by its hash.
GET
/reference/eth-gettransactionbyhash-polygon
Get block receipts
Retrieves the receipts for all transactions in a block.
GET
/reference/eth-getblockreceipts-polygon-pos
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Returns the number of transactions sent from an address.
GET
/reference/eth-gettransactioncount-polygon-zkevm
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Retrieve a list of accounts on the Optimism network.
POST
/reference/eth_accounts-base
Get block number
Fetch the number of the most recently mined block on the Optimism network.
POST
/reference/eth_blocknumber-base
Call contract method
Execute a contract method call without creating a transaction on the Optimism network.
POST
/reference/eth_call-base
Get gas estimate
Estimate the gas required for a transaction on the Optimism network.
POST
/reference/eth_estimategas-base
Get balance
Retrieve the balance of a specified address on the Optimism network.
POST
/reference/eth_getbalance-base
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Fetch details about a specific account in the Solana blockchain.
POST
/reference/getaccountinfo
Simulate a transaction
Simulate a transaction to check its expected outcome on the Solana blockchain.
POST
/reference/simulatetransaction
Get balance
Retrieve the balance for a specific account on the Solana blockchain.
POST
/reference/getbalance
Get block
Fetch details of a specific block on the Solana blockchain.
POST
/reference/getblock
Get health status
Check the health of the Solana cluster.
POST
/reference/gethealth
Get block commitment
Retrieves the commitment for a specific block.
POST
/reference/getblockcommitment
Get block production
Retrieves block production information.
POST
/reference/getblockproduction
Get cluster nodes
Retrieves the list of nodes in the cluster.
POST
/reference/getclusternodes
Get epoch info
Retrieves information about the current epoch.
POST
/reference/getepochinfo
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Retrieves the latest block number on the Ethereum network.
GET
/eth_blockNumber
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Retrieves the current protocol version of the Ethereum network.
GET
/eth-protocolVersion
These API endpoints were generated using n8n
n8n AI workflow transforms web scraping into an intelligent, AI-powered knowledge extraction system that uses vector embeddings to semantically analyze, chunk, store, and retrieve the most relevant API documentation from web pages. Remember to check the Alchemy official documentation to get a full list of all API endpoints and verify the scraped ones!
Reduce time spent on customer integrations, engineer faster POCs, keep your customer-specific functionality separate from product all without having to code.
Reduce time spent on customer integrations, engineer faster POCs, keep your customer-specific functionality separate from product all without having to code.
Yes, Alchemy can connect with Postgres using n8n.io. With n8n, you can create workflows that automate tasks and transfer data between Alchemy and Postgres. Configure nodes for Alchemy and Postgres in the n8n interface, specifying actions and triggers to set up their connection.
Can I use Alchemy’s API with n8n?
Yes, with n8n, you can programmatically interact with Alchemy’s API via pre-defined supported actions or raw HTTP requests. With the HTTP Request node, you create a REST API call. You need to understand basic API terminology and concepts.
Can I use Postgres’s API with n8n?
Yes, with n8n, you can programmatically interact with Postgres’s API via pre-defined supported actions or raw HTTP requests. With the HTTP Request node, you create a REST API call. You need to understand basic API terminology and concepts.
Is n8n secure for integrating Alchemy and Postgres?
Yes, it is safe to use n8n to integrate Alchemy and Postgres. n8n offers various features to ensure the safe handling of your data. These include encrypted data transfers, secure credential storage, RBAC functionality, and compliance with industry-standard security practices (SOC2 compliant). For hosted plans, data is stored within the EU on servers located in Frankfurt, Germany. You can also host it on your own infrastructure for added control.
How to get started with Alchemy and Postgres integration in n8n.io?
To start integrating Alchemy and Postgres in n8n, you have different options depending on how you intend to use it:
n8n Cloud: hosted solution, no need to install anything.
Self-host: recommended method for full-control or customized use cases.
Unlike other platforms that charge per operation, step, or task, n8n charges only for full workflow executions. This approach guarantees predictable costs and scalability, no matter the complexity or volume of your workflows.
Need help setting up your Alchemy and Postgres integration?
Discover our latest community's recommendations and join the discussions about Alchemy and Postgres integration.
Describe the problem/error/question
Postgres node is not working with IN Operator when the parameters is an Array. I suppose that’s because of the sanity checks.
E.g. I have a list of some workflows that I’m returning v…
Hello, I have a follow-up question related to a topic that has been discussed but is closed: Postgres use array as a query parameters
I want to pass an array into a Postgresql query as a query parameter. Ideally, I woul…
Describe the problem/error/question
I have set up local n8n (latest stable v1.59.3) and wanted to try the solution from here https://www.youtube.com/watch?v=PEI_ePNNfJQ
but when importing that workflow locally I have so…
Hey everyone,
I have the following problem & one question.
Problem
I have an HTTP request and a split. The split node correctly splits the HTTP into 10 items. But the Postgres only returns 1 item. No matter what, which…
Hey everyone,
I love N8N so far; as a newbie when it comes to databases and development, I am happy for this awesome solution.
Situation
I am, at best, an intermediate coder. Right now we are building an MVP, before h…
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