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MCP Blockchain Query Server

@pavel-bc

Repository

Basic information

Category

Other

Transports

stdio

Author

pavel-bc

About MCP Blockchain Query Server

🤖 MCP server for querying BTC data via Blockchain.com APIs

MCP Blockchain Query Server config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "mcp-blockchain-query": {
      "command": "python",
      "args": [
        "main.py"
      ]
    }
  }
}

MCP Blockchain Query Server tools

Tool list not available yet

This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.

We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.

Overview

What is MCP Blockchain Query Server?

MCP Blockchain Query Server is a Model Context Protocol server that provides tools for querying Bitcoin blockchain data via the Blockchain.com Data and Query APIs. It is intended for developers who need to retrieve live BTC blockchain information through a standardized MCP interface.

How to use MCP Blockchain Query Server?

Install dependencies with pip install -r requirements.txt inside a Python virtual environment, then run python main.py for stdio mode or python main.py --transport sse --port 8000 for SSE mode. Optional CLI arguments: --port (default 8000) and --transport (stdio or sse, default stdio).

Key features of MCP Blockchain Query Server

  • Supports both stdio and SSE transport modes
  • 17 built-in MCP tools for BTC blockchain queries
  • Get block, transaction, and address details by hash
  • Retrieve blockchain statistics (difficulty, hash rate, average transaction size)
  • Access market price and network metrics (block reward, interval, next retarget)
  • Query unconfirmed transaction count and 24-hour transaction count

Use cases of MCP Blockchain Query Server

  • Retrieve the current Bitcoin block height and difficulty
  • Look up a specific transaction or address balance
  • Monitor network statistics like hash rate and average transaction size
  • Check the latest market price and block reward
  • Get the current unconfirmed transaction count

Frequently asked questions

1

What transport modes are supported?

Both stdio (default) and SSE (Server-Sent Events) are supported. Use `--transport sse` to enable SSE and specify a port with `--port`.

2

How do I install and run the server?

Create a Python virtual environment, install dependencies from `requirements.txt`, and run `python main.py`. For SSE mode, append `--transport sse --port 8000`.

3

What tools are available?

The server provides 17 tools: get block by hash, get transaction by hash, get address by hash, get block count, get difficulty, get address balance, get hash rate, get average transaction size, get total bitcoins, get probability of finding a block, get 24-hour market price, get block interval, get block reward, get next retarget, get latest hash, get unconfirmed count, and get 24-hour transaction count.

4

Which blockchain does the server query?

It queries Bitcoin (BTC) data via the Blockchain.com Data and Query APIs.

5

What runtime dependencies are required?

Python 3, a virtual environment, and the packages listed in `requirements.txt` are required. The majority of the code in this repository was generated using Grok 3 Beta.

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