Etherscan API MCP Server

by junct-bot Your server? Claim it

not responding

Etherscan API MCP is listed as active in the registry but did not answer our last check. Last commit 29 Mar 2026.

Etherscan Api - 71 tools for data, metrics, and on-chain analytics

Uptime history 51 days of history · worst day 0%

51 days agonow

0.0%

Uptime 24h

0 of 90 checks

—

Tools

hidden behind auth

52 ms

Response time

average over 24h

Stars

last commit 29 Mar 2026

Etherscan API MCP does not always answer

Over the last week it answered 0.0% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 16 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add etherscan-api-mcp --transport http https://etherscan-api.mcp.junct.dev/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "etherscan-api-mcp": {
      "url": "https://etherscan-api.mcp.junct.dev/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.etherscan-api-mcp]
url = "https://etherscan-api.mcp.junct.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "etherscan-api-mcp": {
      "url": "https://etherscan-api.mcp.junct.dev/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "etherscan-api-mcp": {
      "url": "https://etherscan-api.mcp.junct.dev/mcp"
    }
  }
}

Endpoints

URL	Transport	State	Latency	Checked
https://etherscan-api.mcp.junct.dev/mcp	streamable-http	answering	52 ms	16 min ago

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Etherscan API MCP — questions

Answers built from our own checks of this server.

Is Etherscan API MCP working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 0 of 90 checks got a reply (0.0%), average response time 52 ms. The bar chart above shows every period we have measured.

The registry lists Etherscan API MCP as active — why does it not respond?

The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.

How do I connect Etherscan API MCP?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Etherscan API MCP need an API key?

No. Etherscan API MCP completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. This is what we observed, not what the docs claim.

Is Etherscan API MCP open source?

We cannot say either way: 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.