MCP Mempool MCP Server

MCP Mempool은 mempool.space의 WebSocket과 REST API를 MCP (Model Context Protocol) 형태로 래핑하여 AI Agent와 외부 애플리케이션이 비트코인 네트워크 데이터를 쉽게 활용할 수 있도록 하는 서버입니다.

Local serverstdioPython

What is the MCP Mempool MCP server?

MCP Mempool MCP server exists for a simple reason — assistants are far more useful when they can act on MCP Mempool directly instead of describing what you should do. MCP Mempool은 mempool.space의 WebSocket과 REST API를 MCP (Model Context Protocol) 형태로 래핑하여 AI Agent와 외부 애플리케이션이 비트코인 네트워크 데이터를 쉽게 활용할 수 있도록 하는 서버입니다.

What the assistant can call

Once MCP Mempool is connected, these are the calls the assistant has available:

  • subscribe_blocks — The subscribe_blocks tool exposed by this server
  • subscribe_mempool_blocks — The subscribe_mempool_blocks tool exposed by this server
  • subscribe_stats — The subscribe_stats tool exposed by this server
  • subscribe_live_chart — The subscribe_live_chart tool exposed by this server
  • track_address — The track_address tool exposed by this server
  • get_connection_status — The get_connection_status tool exposed by this server
  • unsubscribe_client — The unsubscribe_client tool exposed by this server

Setting it up

Setup follows the usual MCP pattern — install or clone the server, register it in your client's configuration file, restart the client. The configuration blocks on this page cover the common clients.

Configuration and credentials

You will need 3 environment variables: FASTMCP_LOG_LEVEL, MEMPOOL_WS_URL, MEMPOOL_API_URL. The server will not start without them, which is usually why the tools fail to appear on a first run. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.

Choosing this one

Plenty of developer tooling servers cover similar ground. The differences that matter in practice are scope of access and how much setup stands between you and a working tool call. MCP Mempool's toolset — subscribe_blocks, subscribe_mempool_blocks, subscribe_stats and 4 more — is a fair guide to whether it matches your workflow. It is maintained by jaducku; worth a glance at recent repository activity before you build anything load-bearing on it.

We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.

Before you rely on it

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
  • Missing credentials fail quietly in some clients — if no tools show up, check the environment block first.
  • MCP clients confirm each tool call by default. Leave that on until you have watched what the mcp mempool mcp server does with a few real requests.

Available tools

ToolWhat it does
subscribe_blocksThe subscribe_blocks tool exposed by this server.
subscribe_mempool_blocksThe subscribe_mempool_blocks tool exposed by this server.
subscribe_statsThe subscribe_stats tool exposed by this server.
subscribe_live_chartThe subscribe_live_chart tool exposed by this server.
track_addressThe track_address tool exposed by this server.
get_connection_statusThe get_connection_status tool exposed by this server.
unsubscribe_clientThe unsubscribe_client tool exposed by this server.

How to install the MCP Mempool MCP server

{
  "mcpServers": {
    "mcp-mempool": {
      "command": "npx",
      "args": ["mcp-remote", "http://localhost:8000/mcp"]
    }
  }
}

{
  "mcpServers": {
    "mcp-mempool": {
      "transport": "streamable-http",
      "url" : "http://127.0.0.1:8000/mcp" //배포시 실제 서빙 url
    }
  }
}

Configuration as documented by the project. Restart the client after saving.

Configuration

VariableDescriptionRequired
FASTMCP_LOG_LEVELConfiguration value read at startup.Optional
MEMPOOL_WS_URLEndpoint or connection string the server talks to.Yes
MEMPOOL_API_URLEndpoint or connection string the server talks to.Yes

Example prompts to try

  • Use MCP Mempool to subscribe blocks.
  • Use MCP Mempool to subscribe mempool blocks.
  • Use MCP Mempool to subscribe stats.

Frequently asked questions

It connects MCP Mempool to MCP-compatible AI assistants such as Claude and Cursor, exposing 7 tools (subscribe_blocks, subscribe_mempool_blocks, subscribe_stats, and more) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with MCP Mempool directly.