# Bitcoin Research Kit (BRK)

> Free, open-source Bitcoin analytics API and block explorer. 57886 on-chain time-series and 97 API operations. No authentication required.

## API

- Version: `v0.11.0`
- Base URL: https://bitview.space
- [Full plain-text reference](https://bitview.space/llms-full.txt)
- [Compact OpenAPI](https://bitview.space/api.json)
- [Full OpenAPI](https://bitview.space/openapi.json)
- [Series catalog](https://bitview.space/api/series)
- [Interactive documentation](https://bitview.space/api)

Use OpenAPI for tool construction, `/api/series` for complete series metadata, and `llms-full.txt` for a readable reference.

## MCP

- Endpoint: https://mcp.bitview.space/
- Transport: Streamable HTTP
- Authentication: None

The MCP server is stateless and read-only. Its tools are generated from these OpenAPI operations.

## Clients

- [JavaScript](https://www.npmjs.com/package/brk-client)
- [Python](https://pypi.org/project/brk-client/)
- [Rust](https://crates.io/crates/brk_client)

## Source

- [GitHub](https://github.com/bitcoinresearchkit/brk)
- MIT licensed
