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MCP server report

API Ninjas MCP server

com.api-ninjas/mcp

We checked this server on 2 November 2026 with McpStamp Check engine 1.2.0. It scored 84 of 100 (grade B), higher than 31.0% of the 33,003 registry servers that responded over HTTPS that day. Ready for Gemini and MCP Registry. Not ready for Claude and ChatGPT.

Measured facts

Score
84B
Sign-in
OAuth
Tools listed
264
Protocol version
2025-11-25
Stores

Store readiness

StoreStatusReason
Claude Connectors Directory Not ready Blocked by Human-readable title on every tool.
ChatGPT app directory Not ready Blocked by Explicit readOnlyHint, destructiveHint and openWorldHint (ChatGPT) and Human-readable title on every tool.
Gemini Connected Apps Ready No blocking check failed.
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

    Explicit readOnlyHint, destructiveHint and openWorldHint (ChatGPT)

    tool_open_world

    Blocks ChatGPT.

    Measured 264/264 tools miss an explicit hint: getAdvice, getAirQuality, getAircraft, getAirlines, getAirports and 259 more

    Set readOnlyHint, destructiveHint and openWorldHint to explicit true/false on every tool (OpenAI app review requires all three).

  2. Fails

    Human-readable title on every tool

    tool_titles

    Blocks Claude and ChatGPT.

    Measured 264/264 without title: getAdvice, getAirQuality, getAircraft, getAirlines, getAirports and 259 more

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

  3. Fails

    401 carries WWW-Authenticate resource_metadata

    auth_challenge

    Measured unknown method: HTTP 401 without WWW-Authenticate

    On 401, send WWW-Authenticate: Bearer resource_metadata="<protected resource metadata URL>".

  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. Warning

    Tool descriptions

    tool_descriptions

    Measured 5 under 60 chars: getDefinition, generateQRCode, getRhyme, getRiddles, getTrivia

    Keep each tool description between 60 and 2000 characters: when to use it, what it returns, key limits.

  6. Warning

    JSON-RPC error for unknown method

    jsonrpc_errors

    Measured JSON-RPC error -32600 instead of -32601

    Return JSON-RPC error code -32601 (Method not found) for unknown methods.

21 checks passed

Passed. Served over HTTPS, initialize over Streamable HTTP, Supported protocol version negotiated, JSON or SSE response Content-Type, GET answers SSE or 405, initialize latency, serverInfo name and version, tools capability declared, 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.

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 API Ninjas

Markdown

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

HTML

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

About this server

140+ data APIs for agents: finance, banking validation, geo, weather, text. One API key.
Registry name
com.api-ninjas/mcp
Remote URL
https://mcp.api-ninjas.com/mcp
Version
1.0.0
Website
api-ninjas.com/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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