21btc.cc Bitcoin Data MCP Tools

• get_price Read-only

  get price

• get_etf_flows Read-only

  get etf flows

• get_risk_score Read-only

  get risk score

• get_volatility Read-only

  get volatility

• get_holders Read-only

  get holders

• get_rainbow_model Read-only

  get rainbow model

• get_stock_to_flow Read-only

  get stock to flow

• get_network_stats Read-only

  get network stats

• get_fees Read-only

  get fees

• get_derivatives Read-only

  get derivatives

• get_holder_distribution Read-only

  get holder distribution

• search_site Read-only

  search site

• get_events Read-only

  get events

• get_changelog Read-only

  get changelog

This list was read from the server itself, by connecting to it and calling tools/list on 5 November 2026. It is what the server actually exposes, not what its listing claims.

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.