paulrberg/coingecko-historical
skills/coingecko-historical/SKILL.md
Use to open CoinGecko historical-data pages in the default browser for a coin/date or to show historical price on date X.
$ install --global
skillsauthnpx skillsauth add paulrberg/dot-agents coingecko-historicalInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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TrivyContainer and dependency vulnerability scanner
95%
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95%
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Snyk (dep)Open source security scanning
50%
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Socket.devSupply chain security analysis
50%
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OWASP Dep-Check
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Last scanned: Jun 13, 2026, 6:21 AM151.4s2 files scanned
SKILL.md
- argument-hint:
- <coin-id> <date>
- disable-model-invocation:
- false
- model:
- opus
- name:
- coingecko-historical
- user-invocable:
- true
- description:
- Use to open CoinGecko historical-data pages in the default browser for a coin/date or to show historical price on date X.
CoinGecko Historical
Open the CoinGecko historical-data page for a coin in the user's default browser, centered on a one-day window around a target date.
Arguments
- coin-id (required): CoinGecko coin slug (e.g.,
bitcoin,ethereum,solana). This is the same ID used by the CoinGecko API and thecgCLI — not the ticker symbol. If the user provides only a symbol or name, resolve it first (e.g.,cg search <term> -o jsonorhttps://api.coingecko.com/api/v3/search?query=<term>). - date (required): Target date in
YYYY-MM-DDformat.
Behavior
Compute DATE-1 (the day before date) and DATE+1 (the day after date), then open:
https://coingecko.com/en/coins/<coin-id>/historical_data?start=<DATE-1>&end=<DATE+1>
Use the macOS open command:
open "https://coingecko.com/en/coins/<coin-id>/historical_data?start=<DATE-1>&end=<DATE+1>"
Date arithmetic
Use GNU/BSD date to compute the surrounding days. BSD date (default on macOS) syntax:
start=$(date -j -v-1d -f "%Y-%m-%d" "$DATE" +%Y-%m-%d)
end=$(date -j -v+1d -f "%Y-%m-%d" "$DATE" +%Y-%m-%d)
Example
User invokes: /coingecko-historical bitcoin 2024-03-14
Run:
open "https://coingecko.com/en/coins/bitcoin/historical_data?start=2024-03-13&end=2024-03-15"
Notes
openis macOS-only. On Linux substitutexdg-open; on Windows usestart.- Validate the date format before computing offsets; stop and ask the user if
dateis missing or malformed.
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