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Access 160+ live web-data APIs including search, social media, e-commerce, and financial data via one MCP.
Do not connect
A critical issue was found. Do not connect this server as-is.
Scanned 6 days ago
A server can change after it's graded. Re-run the automated scan to refresh this report.
This grade is deterministic and reproducible: the same server surface always yields the same grade under a given algorithm version. It is a real automated assessment computed by the MCPGrade engine from what the probe actually observed — not a fabricated or opinion score. It is not a manual human pentest, so it can miss context-specific risks.
Every signal below was measured directly by the automated probe. The grade is derived only from evidence like this — nothing is assumed.
The reefapi MCP server exposes 5 tools, focused primarily on database capabilities. Its published description reads: "Access 160+ live web-data APIs including search, social media, e-commerce, and financial data via one MCP". It communicates over Streamable HTTP using the 2025-06-18 protocol revision, and does not require authorization to connect. MCPGrade currently rates reefapi F — a critical issue was found and the server should not be connected as-is. Its most notable findings include "Cross-tool shadowing" and "Cross-tool shadowing". This report is a deterministic, reproducible automated assessment: the same observed surface always yields the same grade under a given algorithm version, and it is refreshed as new scans arrive and free to read — but it is not a substitute for a manual human security review. Always re-check reefapi's advertised tools, transport security, and authorization posture before connecting an autonomous agent or sharing sensitive context with it.
Add reefapi to an MCP client using the endpoint below. Review the grade and findings above before granting an autonomous agent access.
MCP endpoint
https://api.reefapi.com/mcpStreamable HTTP transport. This is the MCP endpoint, not a website — paste it into your MCP client server list rather than a browser.
Captured passively during the read-only scan. Click any value to find servers that match it.
The tools this server advertises via tools/list — names, purposes, and the parameters each accepts, exactly as enumerated read-only.
Find the right ReefAPI engine for a task — pass ENGLISH keywords or a short natural-language use-case ("detect a website's tech stack", "company reviews", "check a package for vulnerabilities", "is th
COMPACT overview of ONE engine: every action with its description, required params and what it returns — but NOT the full param detail (kept lean so a 90-action engine stays token-cheap). Call this af
Sorted worst-first. Each finding shows its severity, what it means, its OWASP MCP Top-10 mapping, and a recommended fix — the check id links to the exact methodology row that produced it.
tool: search_engines
A tool description tries to alter the model’s use of another tool.
his FIRST, then get_engine_schema(engine) to pick an action. This is a fast keywoRecommendationDescriptions must describe only their own tool.
tool: get_engine_schema
A tool description tries to alter the model’s use of another tool.
this after search_engines to pick the right ACTION, then get_action_schemRecommendationDescriptions must describe only their own tool.
tool: get_action_schema
A tool description tries to alter the model’s use of another tool.
is right before call_engine so you send valid params — invalid enum valuesRecommendationDescriptions must describe only their own tool.
tool: call_engine
A tool exposes a free-text/webhook/feedback parameter with no honest purpose — a classic exfil channel.
ds YOUR ReefAPI key (the local server reads REEFAPI_KEY; the hostedRecommendationRemove side-channel parameters; constrain tool inputs.
tool: call_engine
A tool description tries to alter the model’s use of another tool.
aram names from get_engine_schema first. Needs YOUR ReefAPI key (the local seRecommendationDescriptions must describe only their own tool.
tool: get_catalog
A tool description tries to alter the model’s use of another tool.
e this whenever search_engines didn't surface the right engine (or to be sureRecommendationDescriptions must describe only their own tool.
tool: (server instructions)
A tool description tries to alter the model’s use of another tool.
d of stale memory. HOW: call search_engines(keywords) FIRST to find the rRecommendationDescriptions must describe only their own tool.
The server accepts tool enumeration (and likely invocation) with no authentication.
RecommendationRequire OAuth 2.1 authorization for any server exposing non-public tools.
tool: search_engines
The server advertises open-world / broadly-scoped capabilities.
annotations.openWorldHint = trueRecommendationScope tools to the minimum needed.
tool: get_engine_schema
The server advertises open-world / broadly-scoped capabilities.
annotations.openWorldHint = trueRecommendationScope tools to the minimum needed.
tool: get_action_schema
The server advertises open-world / broadly-scoped capabilities.
annotations.openWorldHint = trueRecommendationScope tools to the minimum needed.
tool: call_engine
The server advertises open-world / broadly-scoped capabilities.
annotations.openWorldHint = trueRecommendationScope tools to the minimum needed.
tool: get_catalog
The server advertises open-world / broadly-scoped capabilities.
annotations.openWorldHint = trueRecommendationScope tools to the minimum needed.
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FULL detail for ONE engine action: every parameter (type, required, description, allowed_values dropdown, default, example, min/max), what it returns, pricing, and a ready-to-run example_params. Call
Call a ReefAPI engine action — POST /<engine>/v1/<action> with `params`. Returns the uniform { ok, data, meta, error } envelope. Get param names from get_engine_schema first. Needs YOUR ReefAPI key (t
The FULL ReefAPI catalog — EVERY engine with its one-line title, grouped by category. This is the whole menu (≈ a few thousand tokens); SCAN IT AND PICK THE BEST ENGINE YOURSELF. You are an LLM, so yo