M8ven MCP Pre-Flight

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Feature	M8ven MCP Pre-Flight
STOA Rating	6.0
Description	M8ven Pre-Flight audits your MCP server for submission to the Claude and OpenAI directories before you send it in — so you catch the errors reviewers reject on, not after waiting 2–4 weeks. It runs three layers in 30 seconds: wire-level protocol checks (OAuth 2.1 + PKCE, token exchange, initialize), per-tool invocations with synthesized arguments, and an optional source-side AST check that compares what your handlers actually do against what your annotations claim.
Strengths	•Directly targets the submission gates for both Claude and OpenAI directories — not a generic API tester •AST check catches annotation/handler mismatches that would otherwise only surface during manual review •No server code stored or used for training — repo is cloned in an isolated sandbox and deleted after analysis
Weaknesses	•Only supports Streamable HTTP transport — no stdio or WebSocket MCP servers •No visible pricing page; monetization model is unclear beyond the Trust Index listing service •Very early and developer-specific — limited value outside the MCP builder audience
Key Features	•Wire-level OAuth 2.1 and MCP protocol checks — tests authorize, token exchange, initialize, and malformed-body resilience automatically •Calls every safe-to-invoke tool with synthesized args, then runs an idempotency probe on tools that claim idempotentHint:true •Optional GitHub repo URL → AST analysis that verifies handlers match annotations and README mentions every declared tool •Tags every finding with which directory cares — Claude or OpenAI — so you know exactly what to fix for each submission
Pricing	Free tier available Free Tier
Best For	All industries
AI Features	AI-Powered Synthesizes realistic arguments for per-tool invocations and analyzes response language for vocabulary that contradicts tool annotations.
Categories	Build & ConnectBuild with AI
STOA Verdict	If you're building MCP servers for the Claude or OpenAI directories, M8ven Pre-Flight saves you from restarting 2–4 week review cycles over fixable errors. It's a focused, free developer tool with a narrow but real use case. Skip it if you're not publishing MCP servers.
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M8ven MCP Pre-Flight

6.0AI

M8ven Pre-Flight audits your MCP server for submission to the Claude and OpenAI directories before you send it in — so you catch the errors reviewers reject on, not after waiting 2–4 weeks. It runs three layers in 30 seconds: wire-level protocol checks (OAuth 2.1 + PKCE, token exchange, initialize), per-tool invocations with synthesized arguments, and an optional source-side AST check that compares what your handlers actually do against what your annotations claim.

Strengths

•Directly targets the submission gates for both Claude and OpenAI directories — not a generic API tester
•AST check catches annotation/handler mismatches that would otherwise only surface during manual review
•No server code stored or used for training — repo is cloned in an isolated sandbox and deleted after analysis

Weaknesses

•Only supports Streamable HTTP transport — no stdio or WebSocket MCP servers
•No visible pricing page; monetization model is unclear beyond the Trust Index listing service

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M8ven MCP Pre-Flight

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