MCP server

Etherscan Official

io.etherscan/etherscan-mcp

Checked 26 Oct 2026, 08:29 UTC · It answered and asked for a sign-in

Read-only Etherscan V2 blockchain data: balances, transactions, transfers, tokens, contracts, logs.

Website

At a glance

Type

MCP server

Publisher

etherscan.io (verified by the MCP Registry)

Status

Needs an API key

Tools

17

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http etherscan-mcp https://mcp.etherscan.io/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.etherscan-mcp]
url = "https://mcp.etherscan.io/mcp"

Gemini CLI

{"mcpServers":{"etherscan-mcp":{"httpUrl":"https://mcp.etherscan.io/mcp"}}}

Cursor

{"mcpServers":{"etherscan-mcp":{"url":"https://mcp.etherscan.io/mcp"}}}

VS Code

{"servers":{"etherscan-mcp":{"type":"http","url":"https://mcp.etherscan.io/mcp"}}}

Antigravity

agy mcp add etherscan-mcp https://mcp.etherscan.io/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"etherscan-mcp","server_url":"https://mcp.etherscan.io/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"etherscan-mcp","server_url":"https://mcp.etherscan.io/mcp"}

Needs an API key or token from its maker, usually added as a header in the setup.

Tools

• get_block_by_timestamp ~186 tokens
  Get the block number closest to a given Unix timestamp (seconds).
• get_contract_abi ~147 tokens
  Get the verified ABI (JSON) for a contract address.
• get_contract_creation ~265 tokens
  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_source ~152 tokens
  Get the verified source code and metadata for a contract address.
• get_gas_oracle ~122 tokens
  Get current gas price recommendations (safe / propose / fast) from the gas tracker.
• get_internal_transactions ~330 tokens
  Get internal transactions for an address, or by a specific parent transaction hash.
• get_logs ~572 tokens
  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_balance ~183 tokens
  Get the native coin (e.g. ETH) balance of an address, in wei.
• get_supported_chains ~140 tokens
  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
• get_token_transfers ~386 tokens
  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_hash ~186 tokens
  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_receipt ~205 tokens
  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_status ~160 tokens
  Get the receipt status of a transaction (1 = success, 0 = failed). Post-Byzantium only.
• get_transaction_status ~158 tokens
  Get the contract execution status of a transaction (detects failed/erroring executions).
• get_transactions ~289 tokens
  Get the list of normal (external) transactions for an address.
• render_etherscan_widget ~560 tokens
  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.
• resolve_ens_name ~168 tokens
  Resolve an ENS name (or onchain subdomain, e.g. etherscan.eth or gm.etherscan.eth) to its Ethereum address. Ethereum mainnet only. Offchain names that require CCIP Read / wildcard resolution (e.g. *.base.eth) are not supported.

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