Best Claude Apps

Etherscan Claude connector

Explore wallets, tokens, transactions, contracts, logs, blocks, and gas across 60+ EVM chains with Etherscan

Add Etherscan to Claude

Add to Claude
URL https://mcp-keyless.etherscan.io/mcp
$ claude mcp add --transport http etherscan https://mcp-keyless.etherscan.io/mcp

Step-by-step setup below All setup steps

Etherscan in Claude at a glance

Reads
16 tools
Block timestamps, contract abis, contract creations and 13 more
Creates & edits
Nothing
Every tool only reads
Deletes
Nothing
No tool name suggests deleting
Acts as
No sign-in
Connects without an account

Counts come from the tool names in the official listing. See every tool

How a request travels Illustration, not a screenshot

  1. 1 · You ask

    “Open the Etherscan block timestamp [name or link] and give me the key points.”

  2. 2 · Claude calls

    get_block_by_timestamp

    Opens one block timestamp with its details

  3. 3 · Server runs it

    mcp-keyless.etherscan.io

    Remote MCP server

  4. 4 · Answer

    Reply in the chat

    Read-only: nothing is changed

The prompt is our example and the tool is one from Etherscan’s list. Claude chooses tools itself, so real calls can differ.

Works in Claude on the web Claude Desktop Claude mobile apps Claude Code Other remote MCP clients

How to add Etherscan to Claude

Etherscan docs

Claude app web · desktop · mobile

  1. 1 Click Add to Claude or open Settings → Connectors and search for Etherscan.
  2. 2 Click Connect.
  3. 3 In a chat, check Etherscan is on in the tools menu under the message box. Then ask.

On Team and Enterprise plans an owner may need to allow it first.

Claude Code terminal

  1. 1
    Add the server: 
    claude mcp add --transport http etherscan https://mcp-keyless.etherscan.io/mcp
    Add --scope user to use it in every project.
  2. 2 Check with claude mcp list.

Custom connector or any MCP client

In Claude: Settings → Connectors → Add custom connector. Other clients that support remote (streamable HTTP) servers take the same URL.

Etherscan MCP server URL

https://mcp-keyless.etherscan.io/mcp

Etherscan MCP tools

16

16 read. The official listing gives tool names only, so the text beside each name is our summary of it, not the developer’s wording.

  • Block timestamps 1 tool

    • get_block_by_timestamp Opens one block timestamp with its details (our summary)

  • Contract abis 1 tool

    • get_contract_abi Opens one contract abi with its details (our summary)

  • Contract creations 1 tool

    • get_contract_creation Opens one contract creation with its details (our summary)

  • Contract sources 1 tool

    • get_contract_source Opens one contract source with its details (our summary)
Show 12 more groups · 12 tools, all read-only · etherscan widgets, gas oracles, internal transactions, logs, native balances, supported chains, token transfers, transaction hashes, transaction receipt statuses, transaction receipts, transaction statuses, transactions

  • Etherscan widgets 1 tool

    • render_etherscan_widget Renders an etherscan widget (our summary)

  • Gas oracles 1 tool

    • get_gas_oracle Opens one gas oracle with its details (our summary)

  • Internal transactions 1 tool

    • get_internal_transactions Pulls up a list of internal transactions (our summary)

  • Logs 1 tool

    • get_logs Pulls up a list of logs (our summary)

  • Native balances 1 tool

    • get_native_balance Opens one native balance with its details (our summary)

  • Supported chains 1 tool

    • get_supported_chains Pulls up a list of supported chains (our summary)

  • Token transfers 1 tool

    • get_token_transfers Pulls up a list of token transfers (our summary)

  • Transaction hashes 1 tool

    • get_transaction_by_hash Opens one transaction hash with its details (our summary)

  • Transaction receipt statuses 1 tool

    • get_transaction_receipt_status Opens one transaction receipt status with its details (our summary)

  • Transaction receipts 1 tool

    • get_transaction_receipt Opens one transaction receipt with its details (our summary)

  • Transaction statuses 1 tool

    • get_transaction_status Opens one transaction status with its details (our summary)

  • Transactions 1 tool

    • get_transactions Pulls up a list of transactions (our summary)

Read or write is our reading of each name. List checked 2026-10-20; developers can change tools at any time.

Things to ask Claude with Etherscan

Our suggestions, one for each kind of tool Etherscan offers. Not from etherscan or Anthropic. Fill in the [brackets].

  • Open the Etherscan block timestamp [name or link] and give me the key points.

    uses get_block_by_timestamp

Security and access

Where requests go, whose account Claude uses, and what you control.

Server

mcp-keyless.etherscan.io

On the developer’s own domain (etherscan.io), not a third-party host. Claude sends requests here when it uses a tool.

Account

No sign-in

Connects without an account, according to the official listing.

Control

Read-only tools

Judging by their names, none of the tools create, change or delete anything.

Policy

Privacy policy

Published by etherscan and linked from the official listing. Read it ↗

Anthropic’s directory notes that it does not control which tools a developer exposes and cannot guarantee they work as intended or stay the same. Connect connectors you trust.

Reviews

No reviews yet. Used Etherscan with Claude? Tell others how it went.

Honest reviews only. We never pay for or edit ratings.

    Questions people ask

    What does the Etherscan connector do in Claude?

    Etherscan is the most-used block explorer in crypto. This connector gives Claude read-only access to authoritative onchain data through the Etherscan API V2, covering 60+ EVM chains — Ethereum, BNB Chain, Polygon, Arbitrum, Optimism, Base, and more — through a single endpoint. No API key or account is required. With it, Claude can: • Look up native coin balances and ERC-20/721/1155 token transfer history for any address • Retrieve normal, internal, and token-transfer transaction history • Fetch a transaction by hash and check its status and receipt • Read verified smart-contract source code and ABIs, and find a contract's creator and creation transaction • Query event logs by address and topics over a block range • Resolve a block by timestamp and read live gas-oracle prices • List all supported chains Every tool is read-only: it retrieves public blockchain data and never signs transactions, moves funds, or modifies state. Results preserve exact addresses, hashes, amounts, and timestamps so you can verify them on Etherscan. An optional interactive dashboard renders wallet, transaction, token, and contract results as a clean visual card. Use it to investigate wallets and transactions, inspect and audit contracts, trace token flows, monitor gas, and answer onchain questions in plain language — across every major EVM network from one connector.

    Is the Etherscan connector official?

    It is made by etherscan and carries the Anthropic verified mark in Anthropic’s directory. This site is independent and lists it from the official directory.

    What is the Etherscan MCP server URL?

    https://mcp-keyless.etherscan.io/mcp. It is a remote MCP server hosted at mcp-keyless.etherscan.io. Paste it into Claude as a custom connector, or add it to Claude Code with: claude mcp add --transport http etherscan https://mcp-keyless.etherscan.io/mcp

    How do I add Etherscan to Claude Code?

    Run "claude mcp add --transport http etherscan https://mcp-keyless.etherscan.io/mcp" in your terminal. Add "--scope user" to make it available in every project.

    Do I need a Etherscan account?

    No sign-in is required to connect it, according to the official listing.

    Can Claude change or delete my Etherscan data?

    Judging by tool names, all 16 tools only read data. None of them create, change or delete anything.

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