ChainRPC MCP

A safety-first Model Context Protocol server for EVM chains and Bitcoin. Its 18 documented tools cover evm, btc, getblock, gettransaction.

People connecting finance tools to Claude, Cursor, VS Code, or another MCP client. The project is written in JavaScript.

VERIFIED ACTIVE

LAST COMMIT 2026-08-20 · ★ 3 · #84 OF 283 MAINTAINED FINANCE · VERIFIED 2026-08-25

MIT · JavaScript servers · how we verify → /methodology

01 · Install ChainRPC MCP

before you install - you'll need

Set EVM_RPC_URL, BITCOIN_RPC_URL, ALLOWED_HOSTS before connecting. MCP_AUTH_TOKEN is optional or environment-specific per the README.

Claude Code

claude mcp add john0n1-chainrpc-mcp --transport http https://chainrpc-mcp.mitander.io/mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "john0n1-chainrpc-mcp": {
      "url": "https://chainrpc-mcp.mitander.io/mcp"
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

https://chainrpc-mcp.mitander.io/mcp

transport: streamable-http

endpoint NOT responding · probed 2026-08-25

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions · remote - your agent's requests go to chainrpc-mcp.mitander.io

license MIT - declared in the repository

npm package chainrpc-mcp - unscoped; check the name against the project README before installing

registry namespace io.github.John0n1 is GitHub-verified and matches the repo owner

03 · What ChainRPC MCP can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

What you can build

With this server connected, an agent can read the latest block number, read chain ID and client version, read a native-token balance at a block, and read a block by number, tag, or hash.

Capability map

Tools grouped from the project's README - what ChainRPC MCP lets an agent do.

Evm

10 tools - e.g. Return the latest block number; Return chain ID and client version; Read a native-token balance at a block

evm_getBlockNumber · evm_getChainInfo · evm_getNativeBalance · evm_getBlock · evm_getTransaction · evm_call…

Btc

8 tools - e.g. Return network, height, sync, and pruning information; Scan confirmed UTXOs for an address; Read a block by height or hash

btc_getBlockchainInfo · btc_getAddressBalance · btc_getBlock · btc_getTransaction · btc_getTxOut · btc_estimateFee…

Latest releases

2.0.2 · 2026-08-20

JSON-RPC MCP server for EVM (Ethereum) chains and Bitcoin · ![npm]( · A safety-first Model Context Protocol server for EVM chains and Bitcoin. · ChainRPC MCP gives agents a focused set of tools for balances, blocks…

04 · Who maintains ChainRPC MCP

ChainRPC MCP is maintained by john0n1. It's the only MCP server we track from this author; the repo dates to Aug 2025.

05 · Facts

repository: github.com/john0n1/chainrpc-mcp
category: finance - ranked #84 of 283 actively-maintained finance servers as of 2026-08-25.
release cadence: 1 release in the last 90 days (latest 2026-08-20)
registry: io.github.John0n1/chainrpc-mcp (active, first published 2026-08-19)
packages: npm:chainrpc-mcp

06 · ChainRPC MCP FAQ

Is ChainRPC MCP still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-20 and it shipped 1 release in the last 90 days. We re-verify nightly.

What can ChainRPC MCP do?

With this server connected, an agent can read the latest block number, read chain ID and client version, read a native-token balance at a block, and read a block by number, tag, or hash.

How do I install ChainRPC MCP?

Run `npx -y chainrpc-mcp`. The README documents 4 environment variables (EVM_RPC_URL, BITCOIN_RPC_URL, ALLOWED_HOSTS…) to set first. Set EVM_RPC_URL, BITCOIN_RPC_URL, ALLOWED_HOSTS before connecting. MCP_AUTH_TOKEN is optional or environment-specific per the README. You can also paste the ready-made client config above.

Does ChainRPC MCP run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to ChainRPC MCP

Alternatives to ChainRPC MCP

Maintained finance servers if ChainRPC MCP isn't the fit.

Pairs well with

Servers that cover what ChainRPC MCP doesn't - only shown when the pairing reason fits the companion.

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