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MCP server report

CoinMarketCap MCP server

com.coinmarketcap/coinmarketcap

We checked this server on 2 November 2026 with McpStamp Check engine 1.2.0. It scored 83 of 100 (grade B), higher than 29.9% of the 33,003 registry servers that responded over HTTPS that day. Ready for MCP Registry. Not ready for Claude, ChatGPT and Gemini.

Measured facts

Score
83B
Sign-in
OAuth
Tools listed
14
Protocol version
None returned
Stores

Store readiness

StoreStatusReason
Claude Connectors Directory Not ready Blocked by Human-readable title on every tool.
ChatGPT app directory Not ready Blocked by Human-readable title on every tool.
Gemini Connected Apps Not ready Blocked by Supported protocol version negotiated.
Official MCP Registry Ready No blocking check failed.

MCP Registry ready means a valid public remote for the registry, not that the server is listed in a store.

Fixes

6 checks to fix

  1. Fails

    Supported protocol version negotiated

    protocol_version

    Blocks Gemini.

    Measured No protocolVersion in the initialize result

    Return protocolVersion "2025-11-25" (or "2025-06-18") in the initialize result. Gemini Connected Apps requires 2025-03-26 to 2025-11-25.

  2. Fails

    Human-readable title on every tool

    tool_titles

    Blocks Claude and ChatGPT.

    Measured 14/14 without title: trending_crypto_narratives, search_crypto_info, get_crypto_metrics, get_global_crypto_derivatives_metrics, search_cryptos and 9 more

    Add a short human-readable "title" to every tool (shown in store UIs and consent screens).

  3. Fails

    serverInfo name and version

    server_info

    Measured serverInfo {}

    Return serverInfo with both name and version (and a title) in the initialize result.

  4. Fails

    Server instructions

    instructions

    Measured No instructions in the initialize result

    Add an "instructions" string to the initialize result: what the server covers, for whom, and its limits.

  5. Fails

    tools capability declared

    capabilities_tools

    Measured capabilities.tools missing

    Declare "tools": {} in the initialize capabilities.

  6. Warning

    401 carries WWW-Authenticate resource_metadata

    auth_challenge

    Measured initialize: WWW-Authenticate bearer without resource_metadata

    Add resource_metadata="https://<host>/.well-known/oauth-protected-resource<path>" to the WWW-Authenticate: Bearer header on 401.

21 checks passed

Passed. Served over HTTPS, initialize over Streamable HTTP, JSON or SSE response Content-Type, JSON-RPC error for unknown method, GET answers SSE or 405, initialize latency, Sign-in method the store supports (OAuth or none), Protected resource metadata (RFC 9728), Resource metadata "resource" equals the server URL, Authorization server metadata (RFC 8414 / OIDC), First metadata URL Gemini tries answers 200 with the required fields, issuer equals the authorization_servers entry; token_endpoint_auth_methods_supported (ChatGPT), PKCE S256 advertised, Client registration (DCR or Client ID Metadata Documents), refresh_token grant advertised, tools/list returns tools, inputSchema is an object schema, Tool names are valid and portable, readOnlyHint or destructiveHint on every tool, Explicit readOnlyHint, destructiveHint and openWorldHint (ChatGPT), Tool descriptions.

Run a fresh check

This page is the 2 November 2026 snapshot. If you maintain this server and have shipped fixes since then, re-check it. The live check and the badge show the current result, and the next snapshot will pick up the change.

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McpStamp score for CoinMarketCap

Markdown

[![McpStamp score](https://www.mcpstamp.com/badge?url=https%3A%2F%2Fmcp.coinmarketcap.com%2Fmcp)](https://www.mcpstamp.com/r/com-coinmarketcap-coinmarketcap/)

HTML

<a href="https://www.mcpstamp.com/r/com-coinmarketcap-coinmarketcap/"><img src="https://www.mcpstamp.com/badge?url=https%3A%2F%2Fmcp.coinmarketcap.com%2Fmcp" alt="McpStamp score" height="20"></a>
Registry entry

About this server

Official CoinMarketCap MCP server: real-time crypto prices, market cap, rankings and exchange data.
Registry name
com.coinmarketcap/coinmarketcap
Remote URL
https://mcp.coinmarketcap.com/mcp
Version
1.0.0
Website
coinmarketcap.com/api/mcp/
Checked
2 November 2026, engine 1.2.0, no credentials

The description above is the server's own text from the official MCP Registry. If a result looks wrong, run a fresh check and email support@zovo.one with the report link.

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