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Mempool MCP Server

🚀 Mempool MCP Server

A Model Context Protocol (MCP) server providing real-time Bitcoin blockchain and mempool data, powered by mempool.space APIs. Use this server as a tool provider in your MCP-compatible clients (like Claude, Cursor, and others) to access up-to-date Bitcoin network information. Its an unofficial repository.


🛠️ Available Bitcoin Tools

Tool Name

Description

get-difficulty-adjustment

Get current and next Bitcoin difficulty adjustment info.

get-price

Get the current BTC price in various fiat currencies.

get-historical-price

Get the BTC price for a specific date (YYYY-MM-DD).

get-recommended-fees

Get recommended Bitcoin transaction fees.

get-stats-info

Get general Bitcoin network statistics.

get-mining-pools

Get mining pools info.

get-mining-pool

Get info for a specific mining pool.

get-mining-blocks-fees-24h

Get mining blocks fees for the last 24h.

get-mempool-info

Get mempool info.

get-mempool-txids

Get mempool txids.

get-mempool-recent

Get recent mempool transactions.

get-blocks

Get the latest blocks.

get-block

Get details about a block from its hash.

get-block-txids

Get txids for a block.

get-block-txs

Get transactions for a block.

get-block-status

Get block status.

get-block-raw

Get raw block hex.

get-block-txid-by-index

Get block txid by index.

get-block-header

Get the block header in hex.

get-address-info

Get details about an address.

get-address-txs

Get transactions for an address.

get-address-txs-chain

Get chain transactions for an address.

get-address-txs-mempool

Get mempool transactions for an address.

get-address-utxo

Get UTXOs for an address.

get-tx-info

Get details about a transaction.

get-tx-status

Get transaction status.

get-tx-raw

Get raw transaction hex.

get-tx-merkleblock-proof

Get transaction merkleblock proof.

get-tx-outspend

Get outspend info for a transaction output.

get-tx-outspends

Get outspends for all outputs of a transaction.


🤖 What is MCP?

Model Context Protocol (MCP) is a standard for tool providers to communicate with AI clients via standard input/output. This server lets you plug Bitcoin data tools into any MCP-compatible client.


⚡ Quick Start: Use in Your MCP Client

You can configure this server as a tool provider in your MCP Client such Claude, Cursor, VsCode and others:

"mempool-mcp-server": { "command": "npx", "args": [ "@sanlim/mempool-mcp-server" ] },
TIP

To connect locally for privacy and unlimited calls, you can pass the base mempool API URL as an environment config from your local Bitcoin node such as Umbrel, MyNode, etc. See below:

"mempool-mcp-server-local": { "command": "npx", "args": [ "@sanlim/mempool-mcp-server" ], "env": { "MEMPOOL_BASE_URL": "http://umbrel.local:3006/api" } },

Check this working with "mempool url" text on your MCP Client.

Enjoy!

or

🛠️ Using a Local Build

  1. Clone this repository:

git clone https://github.com/alexandresanlim/mempool-mcp-server.git
  1. Install and build:

npm install npm run build npm run server
  1. Configure your MCP client:

"mempool-mcp-server-debug": { "command": "node", "args": [ "...replace_to_path_of_project/mempool-mcp-server/build/main.js" ] },

The server will start and listen for MCP requests via standard input/output. 🎉


📚 Reference & Troubleshooting

  • Full API reference: mempool.space API docs

  • If you have issues, make sure your build is up to date and your MCP client is configured to use stdio.

  • For questions or contributions, feel free to open an issue or pull request!


Made with ❤️ by a bitcoiner. Enjoy!

Deploy Server
A
security – no known vulnerabilities
A
license - permissive license
A
quality - confirmed to work

hybrid server

The server is able to function both locally and remotely, depending on the configuration or use case.

A Model Context Protocol server that provides real-time Bitcoin blockchain and mempool data to AI clients, allowing access to comprehensive Bitcoin network information through various data tools.

  1. 🛠️ Available Bitcoin Tools
    1. 🤖 What is MCP?
      1. ⚡ Quick Start: Use in Your MCP Client
        1. 🛠️ Using a Local Build
      2. 📚 Reference & Troubleshooting

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