Alchemy

Deletes a Notify webhook by webhook_id. This is destructive; only call after the user explicitly confirms the webhook_id.

delete_webhook

Get the current blob base fee in wei (EIP-4844). Requires select_app first.

ethBlobBaseFee

Get the current block number. Requires select_app first.

ethBlockNumber

Execute a read-only smart contract call (eth_call). Returns the result without creating a transaction. Use for reading contract state, checking balances via contract methods, etc. Requires select_app first.

ethCall

Simulate a bundle of transactions at a specific block. Used for MEV bundle simulation. Requires select_app first.

ethCallBundle

Execute multiple eth_call requests in a single batch against optional block state overrides. Requires select_app first.

ethCallMany

Get the chain ID of the network. Requires select_app first.

ethChainId

Create an EIP-2930 access list for a transaction, showing which storage slots will be accessed. Requires select_app first.

ethCreateAccessList

Estimate the gas needed for a transaction. Requires select_app first.

ethEstimateGas

Get historical gas fee data. Returns base fees and priority fee percentiles for a range of blocks. Requires select_app first.

ethFeeHistory

Get the current gas price in wei. Requires select_app first.

ethGasPrice

Get the ETH (or native token) balance of an address in wei. Requires select_app first.

ethGetBalance

Get a block by its hash. Set fullTransactions to true to include full transaction objects. Requires select_app first.

ethGetBlockByHash

Get a block by its number or tag. Set fullTransactions to true to include full transaction objects. Requires select_app first.

ethGetBlockByNumber

Get all transaction receipts for a block by block number or tag. Requires select_app first.

ethGetBlockReceipts

Get the number of transactions in a block by block hash. Requires select_app first.

ethGetBlockTransactionCountByHash

Get the number of transactions in a block by block number. Requires select_app first.

ethGetBlockTransactionCountByNumber

Get the bytecode at a contract address. Returns '0x' for non-contract addresses. Requires select_app first.

ethGetCode

Get event logs matching a filter. Use to query contract events by topic, address, and block range. Requires select_app first.

ethGetLogs

Get the Merkle proof for an account's storage at a given block. Useful for verifying state without trusting the node. Requires select_app first.

ethGetProof

Get the value of a storage slot at a contract address. Requires select_app first.

ethGetStorageAt

Get a transaction by block hash and index position. Requires select_app first.

ethGetTransactionByBlockHashAndIndex

Get a transaction by block number and index position. Requires select_app first.

ethGetTransactionByBlockNumberAndIndex

Get a transaction by its hash. Returns transaction details including from, to, value, input data, etc. Requires select_app first.

ethGetTransactionByHash

Get the number of transactions sent from an address (nonce). Requires select_app first.

ethGetTransactionCount

Get the receipt of a transaction by its hash. Includes status, gas used, logs, etc. Requires select_app first.

ethGetTransactionReceipt

Get the current suggested priority fee (tip) in wei. Requires select_app first.

ethMaxPriorityFeePerGas

Check if the node is syncing. Returns false if fully synced, or sync status object if syncing. Requires select_app first.

ethSyncing

Estimate gas limits for an ERC-4337 UserOperation. Returns preVerificationGas, verificationGasLimit, and callGasLimit. Requires select_app first.

estimateUserOperationGas

Requests testnet funds from the Alchemy faucet for a wallet address on a supported testnet. The team is derived from the authenticated session. Supported networks: sepolia, base-sepolia, polygon-amoy, arbitrum-sepolia, optimism-sepolia, monad-testnet. Confirm the network and address with the user before calling.

faucet_drip

Gets detailed information about an Alchemy app including networks, masked API key, and allowlists. Requires an app_id from list_apps.

get_app

Get historical asset transfers (transactions) for an address. Supports ERC-20, ERC-721, ERC-1155, native, and internal transfers. Requires select_app first.

getAssetTransfers

Get high-level metadata for an NFT collection by its slug. Requires select_app first.

getCollectionMetadata

Get all NFT collections held by an address. Ethereum only — use getContractsForOwner for other chains. Requires select_app first.

getCollectionsForOwner

Get high-level metadata for an NFT contract (name, symbol, total supply, etc.). Requires select_app first.

getContractMetadata

Get metadata for multiple NFT contracts in a single request. Requires select_app first.

getContractMetadataBatch

Get all NFT contracts owned by an address, with optional metadata. Requires select_app first.

getContractsForOwner

Get the floor price of an NFT collection from major marketplaces. Requires select_app first.

getFloorPrice

Gets a single Gas Manager policy by policy_id. Use list_gas_policies first if the policy_id is unknown.

get_gas_policy

Get historical price data for a token over a time range. Identify token by symbol OR by network+address. Requires select_app first.

getHistoricalTokenPrices