---
name: thirdfy-cmc
description: "Use CoinMarketCap through Thirdfy (19 reads): one MCP, CLI and API for every agent, with each write checked against the owner's policy before it signs."
---

# CoinMarketCap through Thirdfy

Prices, rankings and token data from CoinMarketCap.

- Status: Live
- Chains: –
- Can touch: Read only. It cannot move funds.
- Directory: https://v2.thirdfy.com/protocols/cmc

## Connect

- MCP: `claude mcp add --transport http thirdfy https://mcp.thirdfy.com/mcp` (docs: https://docs.thirdfy.com/documentation/mcp)
- CLI: `npx @thirdfy/agent-cli@latest login` (add `--trade` to allow writes), then `npx @thirdfy/agent-cli@latest whoami`
- The owner allows CoinMarketCap for the agent: https://v2.thirdfy.com/integrations/cmc

## Actions

- `get-cmc-btc-etf-demand` (read): BTC ETF institutional demand brief.
- `get-cmc-daily-market-overview` (read): Daily regime and macro brief.
- `get-cmc-derivatives-crowding` (read): Derivatives crowding brief.
- `get-cmc-derivatives-metrics` (read): Global derivatives snapshot.
- `get-cmc-fear-greed` (read): Fear and Greed index (REST only).
- `get-cmc-global-metrics` (read): BTC dominance and total market cap.
- `get-cmc-info` (read): Profile metadata, not a quote.
- `get-cmc-market-regime` (read): Market regime detection brief.
- `get-cmc-marketcap-technicals` (read): Requires CMC id.
- `get-cmc-metrics` (read): Requires CMC id.
- `get-cmc-narratives` (read): Trending narrative categories.
- `get-cmc-news` (read): Latest crypto news headlines.
- `get-cmc-perp-contract-analysis` (read): Perp contract structure.
- `get-cmc-quotes` (read): Canonical CLI read.
- `get-cmc-search` (read): Resolve CMC id from symbol or slug.
- `get-cmc-search-info` (read): Site search for crypto info.
- `get-cmc-skill` (read): Run an allowlisted CoinMarketCap Skill Hub brief by unique_name.
- `get-cmc-technicals` (read): Requires CMC id.
- `get-cmc-upcoming-events` (read): News-derived macro catalysts, not an official calendar.

## Rules

- Call these actions through Thirdfy, not with your own keys: Thirdfy builds each transaction and the owner's policy checks it before it signs.
- A write that the owner has not allowed, or that breaks a limit, is refused before signing and costs nothing.