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CoinGecko MCP server · D · ToolBench

CoinGecko

MCP server providing AI-accessible tools for cryptocurrency market data, pricing, trending coins, NFTs, derivatives, on-chain data, and news from the CoinGecko API

2026-07-28+11 tools

56/100

Definition Quality69

Protocol Readiness35

Supportability48

Spec posture

Inferred effective spec 2026-07-28+·current baseline 2026-07-28

Static source inference · medium confidence

Current-spec patterns detected

Summary

CoinGecko server has 11 well-named tools with clear, action-verb prefixes (get_, search_). Descriptions are present and contextual (avg ~120 chars), exceeding the 10-char minimum. Input schemas are visible and typed (string, integer, array, boolean). However, output schemas are completely undocumented, no response structure is defined anywhere in the source. Parameter descriptions lack detail on constraints (e.g., no min/max for limits, no enum for vsCurrency values). Error handling is absent from the code, no guidance on what happens when a coin ID is invalid or an API call fails. Security is reasonable (read-only operations, no secrets in params), but composition could be tighter: search_onchain_pools and get_onchain_token_prices are closely related and could benefit from clearer chaining guidance.

Tools (11)

coin_searchread onlyauthsource verified70/100

Search CoinGecko for coins, NFTs, exchanges, and categories by name or ticker. Use this first when the user mentions a coin by ticker or partial name.

get_categoriesread onlyauthsource verified68/100

List coin sector categories (DeFi, gaming, L1, L2, etc.) with aggregate market data.

get_coin_pricesread onlyauthsource verified72/100

Get current prices for one or more coins in a quote currency. Useful when you know coin ids like "bitcoin" or "ethereum" and want the live price.

get_crypto_newsread onlyauthsource verified70/100

Get recent crypto news (and guides when filtered by coin) aggregated from 100+ publishers. Use when the user asks "what's the latest news on X?". Requires a paid CoinGecko plan.

get_derivativesread onlyauthsource verified68/100

List current derivative tickers (futures, perpetuals).

get_nft_collectionread onlyauthsource verified68/100

Get detail for one NFT collection by its CoinGecko id.

Issues (5)

CRITICALtool ↗

Output schemas completely undocumented. No response structure defined for any tool. LLMs cannot plan downstream calls or extract required fields without guessing.

get_coin_pricescoin_searchget_top_marketsget_trendingget_categoriesget_nft_collectionget_derivativessearch_onchain_poolsget_onchain_token_pricesget_top_token_holdersget_crypto_news

HIGHconstrained-input ↗

Parameter constraints missing. 'limit' and 'maxResults' lack min/max bounds; 'vsCurrency' lacks enum values (usd, eur, gbp, etc.). LLMs will pass invalid values.

get_coin_pricescoin_searchget_top_marketsget_trendingget_categoriesget_derivativessearch_onchain_poolsget_onchain_token_pricesget_crypto_news

HIGHrecovery-guide ↗

Recommendations

Document output schemas for all 11 tools. For each, specify the response object structure, field types, and which fields are required. Example: 'Returns {coins: [{id, name, symbol, current_price, market_cap}], total_count: int}'.
Add enum constraints to vsCurrency parameter. Define valid values: ['usd', 'eur', 'gbp', 'jpy', 'cad', 'aud', 'chf', 'cny', 'inr', 'brl', 'zar', 'hkd', 'sgd', 'huf', 'czk', 'dkk', 'pln', 'sek', 'nok', 'krw', 'twd', 'mxn', 'php', 'idr', 'thb', 'myr', 'vnd', 'pkr', 'aed', 'sar', 'qar', 'kwd', 'bhd', 'omr', 'jod', 'ils', 'rub', 'uah', 'byn', 'kzt', 'uzs', 'gel', 'kgs', 'tjs', 'tmm', 'afn', 'btc', 'eth', 'ltc', 'bch', 'bnb', 'eos', 'xrp', 'xlm', 'link', 'dot', 'yfi', 'aed', 'ars', 'clp', 'cop', 'pen', 'uyu', 'pab', 'vef', 'vnd', 'won', 'xag', 'xau'].
Add min/max constraints to numeric parameters. Example: 'limit: integer, minimum 1, maximum 100, default 25' and 'topN: integer, minimum 1, maximum 1000'.
Implement error handling with recovery guidance. Return structured errors like '{error: "coin_not_found", message: "Coin 'xyz' not found. Try coin_search() first.", suggestion: "search_onchain_pools"}' instead of raw exceptions.
Add chaining documentation to onchain tools. Specify: 'search_onchain_pools returns pool_id and contract_address; pass contract_address to get_onchain_token_prices to fetch prices.'

Score history

Overall score trend

First recorded score · v2 rubric

56/100

Scored	Grade	Overall	Spec posture	Rubric
2026-09-23	D	56	2026-07-28+	v2