# MCP Migration Checker — yeezhan.com
> One-time pay-per-task emergency tool to make your file ready for submission.
> No credits, no balance. One payment unlocks one task result, valid for 24 hours.

Tool domain: https://mcp-migrate-check.yeezhan.com
Skill definition: https://mcp-migrate-check.yeezhan.com/skill/SKILL.md
API documentation: https://mcp-migrate-check.yeezhan.com/api/docs

## What this tool does
Audit an MCP server against the 2026-07-28 spec: stdio/SSE transport, session state, stateless mode, OAuth.

## Typical user problems
- The MCP spec broke backwards compatibility in 2026-07-28 — stdio-only servers, hardcoded session IDs and old protocol versions silently stop working with modern clients.

## Parameters


## Pricing
- Watermarked preview: free, no login required
- Final clean output: $0.99 one-time per task
- Require login (email/phone OTP) to complete payment
- Result available for download 24 hours after payment

## Limitations
- Max input 20 MB