Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/imoonkey/openweb/coingeckonpx skills add imoonkey/openweb --skill coingeckogit clone --depth 1 https://github.com/imoonkey/openwebWhat it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00000 | $0.00541 |
| Opus 5 | $0.00000 | $0.00270 |
| Sonnet 5 | $0.00000 | $0.00108 |
| Haiku 4.5 | $0.00000 | $0.00054 |
Grade A, and why
coingecko scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 51 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CoinGecko
Overview
Cryptocurrency data aggregator. Public REST API for searching coins, checking prices, market data, and trending tokens.
Workflows
Look up a coin's price and details
searchCoins(query)→coins[].idgetCoinDetail(id)→ market_data.current_price, description, links, categories
Check current prices for multiple coins
getPrice(ids, vs_currencies)→{coin_id: {currency: price}}
Browse top coins by market cap
getMarketData(vs_currency)→id, current_price, market_cap, total_volumegetCoinDetail(id)→ full details for a specific coin
Discover trending coins
getTrending()→coins[].item.id, name, symbol, scoregetCoinDetail(id)→ details for a trending coin
Operations
| Operation | Intent | Key Input | Key Output | Notes |
|---|---|---|---|---|
| searchCoins | find coins by name/symbol | query | coins[].id, name, symbol, market_cap_rank | entry point for unknown coins |
| getCoinDetail | full coin details | id <- searchCoins / getMarketData / getTrending | market_data.current_price, description, links, categories | use localization=false to reduce payload |
| getMarketData | ranked market overview | vs_currency | id, current_price, market_cap, total_volume, price_change_24h | paginated, entry point for top coins |
| getTrending | trending coins | -- | coins[].item.id, name, symbol, score | no params, entry point |
| getPrice | quick price check | ids, vs_currencies | {coin_id: {currency: price}} | fastest price lookup, batch multiple coins |
Quick Start
# Search for a coin
openweb coingecko exec searchCoins '{"query":"bitcoin"}'
# Get detailed coin info
openweb coingecko exec getCoinDetail '{"id":"bitcoin","localization":false,"tickers":false,"community_data":false,"developer_data":false}'
# Get top 20 coins by market cap
openweb coingecko exec getMarketData '{"vs_currency":"usd","per_page":20}'
# Get trending coins
openweb coingecko exec getTrending '{}'
# Get prices for multiple coins
openweb coingecko exec getPrice '{"ids":"bitcoin,ethereum,solana","vs_currencies":"usd","include_24hr_change":true}'
What ships with it
10 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- adapters/coingecko.ts 9.5 KB runs code
- DOC.md 2.9 KB
- examples/getCoinDetail.example.json 233 B
- examples/getMarketData.example.json 163 B
- examples/getPrice.example.json 162 B
- examples/getTrending.example.json 123 B
- examples/searchCoins.example.json 143 B
- manifest.json 403 B
- openapi.yaml 22 KB
- PROGRESS.md 1.2 KB
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2d ago First seen · 51 lines · 0 tokens per session scan A 8b679afc8286
coingecko is a skill published in the GitHub repository imoonkey/openweb (58 stars, last pushed 2mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 541 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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