Etherscan MCP server

• get_block_by_timestampFree

  Get the block number closest to a given Unix timestamp (seconds).

• get_contract_abiFree

  Get the verified ABI (JSON) for a contract address.

• get_contract_creationFree

  Get the creator address and creation transaction hash for up to 5 contract addresses. The multi-kilobyte creation bytecode is omitted by default to keep responses small; set include_creation_bytecode=true to include it.

• get_contract_sourceFree

  Get the verified source code and metadata for a contract address.

• get_gas_oracleFree

  Get current gas price recommendations (safe / propose / fast) from the gas tracker.

• get_internal_transactionsFree

  Get internal transactions for an address, or by a specific parent transaction hash.

• get_logsFree

  Search event logs by contract address and/or topics over a block range. Topics are 32-byte hex values; topic0 is usually the keccak256 event-signature hash. Adjacent-topic operators (and/or) combine multiple topic filters. Provide 'address' and/or at least one topic.

• get_native_balanceFree

  Get the native coin (e.g. ETH) balance of an address, in wei.

• get_supported_chainsFree

  Get the chains / chain IDs supported by the Etherscan V2 API. In the hosted (proxy) deployment this returns a bundled snapshot shipped with the server, refreshed when the package is updated; in direct/stdio mode it queries the live chain-list endpoint. A chain's absence from the returned list is not proof that it lacks live support.

• get_token_transfersFree

  Get token transfer events for an address, optionally filtered by token contract. Select the token standard: erc20 (fungible, default), erc721 (NFT), or erc1155 (multi-token).

• get_transaction_by_hashFree

  Get the full transaction object for a transaction hash (from, to, value, input data, gas, gas price, nonce, block number/hash, transaction index). Returns null if the hash is unknown.

• get_transaction_receiptFree

  Get the transaction receipt for a transaction hash (execution status, gas used, cumulative gas used, effective gas price, logs, and the created contract address for deployments). Returns null if the hash is unknown or the transaction is still pending.

• get_transaction_receipt_statusFree

  Get the receipt status of a transaction (1 = success, 0 = failed). Post-Byzantium only.

• get_transaction_statusFree

  Get the contract execution status of a transaction (detects failed/erroring executions).

• get_transactionsFree

  Get the list of normal (external) transactions for an address.

• render_etherscan_widgetFree

  Present exact facts returned by Etherscan data tools in a fast explorer-style card. Call the relevant Etherscan data tool first and copy only supported values into this tool. Never invent scores, risk labels, historical prices, forecasts, or audit conclusions.

• –Code scanremote-only server, no package to scann/a
• Live reliabilityremote reachable in 649ms20/20
• Tool poisoning16 tool descriptions checked15/15
• Auth qualityauth enforced (unknown)9/15
• Maintenanceno repository listed3/15
• Maintainer identityverified namespace with website, no repo4/10

Etherscan: common questions

Is Etherscan MCP server safe?

With care: it is graded C, so read the findings first (68/100). Read the Etherscan safety report

How do I install Etherscan?

It runs remotely at mcp-keyless.etherscan.io. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.

Does Etherscan need an API key?

Yes. The registry entry asks for Authorization.

Is Etherscan maintained?

The latest release is v2.3.0.

Is Etherscan up?

100% of our last 6 checks got an answer. We check remote servers about four times a day.