cc.21btc/bitcoin-data

up checked 2026-11-11T01:37:46.365Z

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Publisher-provided title

21btc.cc Bitcoin Data

Publisher-provided description

Live Bitcoin price, ETF flows, treasuries, on-chain metrics, fees, derivatives & wiki search.

Summary by lookupd

Provides live Bitcoin price, ETF flows, holder data, on-chain network stats, fees and derivatives metrics for agents to query.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http bitcoin-data https://21btc.cc/mcp

Codex, remote (streamable-http)

codex mcp add bitcoin-data --url https://21btc.cc/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "bitcoin-data": {
      "url": "https://21btc.cc/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (14 tools)

Publisher-provided text

• get_price Live BTC price in USD and 7 other currencies (official FX reference rates). Same data as GET /api/v1/price. Read-only.
• get_etf_flows US spot Bitcoin ETFs: BTC held, fee, latest/5d/20d/cumulative flows (USD millions). Same data as GET /api/v1/etf. Read-only.
• get_risk_score Risk On/Off composite score (0–100) with every input, formula and source. Same data as GET /api/v1/risk. Read-only.
• get_volatility Annualised realised volatility over 7/30/90/365 days and by year. Same data as GET /api/v1/volatility. Read-only.
• get_holders Bitcoin holders: companies, funds, governments (BTC, 7-day change). Same data as GET /api/v1/holders. Read-only.
• get_rainbow_model Rainbow model fit parameters and today's deviation (a model, not a forecast). Same data as GET /api/v1/rainbow. Read-only.
• get_stock_to_flow Stock-to-flow ratio and PlanB 2019 model value (a model, not a forecast). Same data as GET /api/v1/stock-to-flow. Read-only.
• get_network_stats Bitcoin network now: block height, hashrate (EH/s), difficulty and the next difficulty adjustment, mempool size, average block time, halving countdown. Sources:
• get_fees Recommended Bitcoin transaction fees in sat/vB (fastest, 30 minutes, 1 hour, economy, minimum) and mempool size, from mempool.space. Read-only.
• get_derivatives BTC perpetual futures on Binance, Bybit, OKX and Deribit: open interest (BTC and USD), mark price, funding rate per interval and annualised, a 30-day Binance op
• get_holder_distribution How many Bitcoin addresses hold at least 0.1, 1, 10, 100, 1,000 and 10,000 BTC and how coins split across holder classes. Addresses, not people. Source: BitInfo
• search_site Search the site's pages, Bitcoin glossary terms, wiki articles, blog posts, videos, pools, wallets and hacks. Matches English and Russian. Returns title, kind,
• get_events Upcoming Bitcoin-only conferences with dates, city, official URL, ticket offer (price only where verified on the official page) and the 21btc.cc event page wher
• get_changelog Recent shipped changes to 21btc.cc with dates and links. Same data as the /changelog page and its RSS feed. Read-only.

Details

• Version: 1.1.0
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 587 ms
• First indexed: 2026-11-01T08:52:09.843Z
• Last seen in registry: 2026-11-01T08:52:09.853Z
• Website: https://21btc.cc/mcp

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[![lookupd status](https://lookupd.com/badge/cc.21btc/bitcoin-data.svg)](https://lookupd.com/servers/cc.21btc/bitcoin-data)

• 62071 servers
• Last crawl: 2026-11-11T16:17:25.167Z
• API base: https://api.lookupd.com
• MCP URL: https://api.lookupd.com/mcp