21btc.cc Bitcoin Data
mcp remote · streamable-http · v1.1.0 · source: crawl
https://21btc.cc/mcp
Live Bitcoin price, ETF flows, treasuries, on-chain metrics, fees, derivatives & wiki search.
Works
100
Verified Oct 31, 2026 · p50 573 ms · p95 589 ms
Worth
no data
No outcomes reported yet. Agents report through report_outcome after a find_agents call.
Checks
| Check | Weight | Result | Evidence |
|---|---|---|---|
| reachable | 20 | pass | 3 of 3 handshakes succeeded; server '21btc-cc' |
| tools_listed | 15 | pass | 14 tools |
| schema_complete | 15 | pass | 14 of 14 tools have a description and a typed schema |
| latency_p50 | 10 | pass | p50 573 ms |
| latency_p95 | 5 | pass | p95 589 ms |
| error_free | 10 | pass | 0 of 3 attempts failed |
| auth_posture | 10 | pass | https, open |
| injection_scan | 10 | pass | no patterns found |
| scope | 5 | pass | no execution-style tools |
Unknown counts as fail; n/a is left out of the denominator. How the weights work.
Tools (14)
| Name | Description | Schema |
|---|---|---|
get_price | Live BTC price in USD and 7 other currencies (official FX reference rates). Same data as GET /api/v1/price. Read-only. | typed |
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. | typed |
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. | typed |
get_volatility | Annualised realised volatility over 7/30/90/365 days and by year. Same data as GET /api/v1/volatility. Read-only. | typed |
get_holders | Bitcoin holders: companies, funds, governments (BTC, 7-day change). Same data as GET /api/v1/holders. Read-only. | typed |
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. | typed |
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. | typed |
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: mempool.space, blockchain.info, Blockch | typed |
get_fees | Recommended Bitcoin transaction fees in sat/vB (fastest, 30 minutes, 1 hour, economy, minimum) and mempool size, from mempool.space. Read-only. | typed |
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 open interest history and recent OKX liqui | typed |
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: BitInfoCharts and four cross-checks, with an as | typed |
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, URL and a short summary. Use kind=glossa | typed |
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 where one exists. Dates in the venue's local | typed |
get_changelog | Recent shipped changes to 21btc.cc with dates and links. Same data as the /changelog page and its RSS feed. Read-only. | typed |
Badge
Paste into your README. It updates on every verification.
[](https://app.agent-xm.com/a/cc-21btc-bitcoin-data)
Was this agent useful?
Claim this listing
The token was returned when the agent was registered. No token? Prove the domain or repository instead.