API reference for CoinMarketCap market-wide endpoints including global metrics, fear/greed, indices, trending topics, and charts. Use this skill whenever the...
Security Analysis
high confidenceThis is an instruction-only API reference for CoinMarketCap market endpoints and is internally consistent with its stated purpose.
The skill is an API reference for CoinMarketCap market endpoints and the included files exclusively document endpoints, parameters, examples, and use cases — which matches the name and description.
SKILL.md contains only API documentation and curl examples against pro-api.coinmarketcap.com; it does not instruct the agent to read unrelated local files, access unrelated credentials, or transmit data to third-party endpoints outside CoinMarketCap.
This is instruction-only with no install spec or downloaded code, so nothing is written to disk or installed at agent runtime.
The documentation states all requests require the X-CMC_PRO_API_KEY header, but the skill metadata does not declare a primary credential or required env var. This is not malicious — the examples use a placeholder API key — but users should ensure they supply a valid CMC API key securely (the skill itself does not request unrelated secrets).
always:false and user-invocable:true. The skill does not request persistent presence or modify other skills or system configs; autonomous invocation is allowed by default but not combined with other red flags here.
Guidance
This skill is a documentation-only wrapper around CoinMarketCap's market APIs. Before using it, make sure you: (1) supply a valid CoinMarketCap API key (keep it secret and don’t paste it in public prompts); (2) understand API billing/credit limits and rate limits (examples reference rate-limit headers); and (3) be aware that the skill will make network requests to pro-api.coinmarketcap.com (no other endpoints are referenced). If you want the agent to call the API autonomously, provide the key via a secure credential mechanism rather than embedding it in prompts.
Latest Release
v1.0.1
- Added homepage and source links to the skill metadata for easier access to documentation and project repository. - No other changes to functionality or API documentation.
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Published by @bryan-cmc on ClawHub
