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AB-102
MCP tools and REST endpoints parity
What it means
At least 50% of your REST API endpoints have corresponding MCP tools.
Why it matters
MCP-to-REST parity ensures agents can interact with your API through MCP without missing critical functionality. Low parity means agents must fall back to REST, defeating the purpose of MCP.
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What's wrong
OpenAPI spec has 20 endpoints but MCP server exposes only 3 tools (15% parity).
✓
What's right
OpenAPI spec has 20 endpoints and MCP server exposes 12 tools (60% parity).
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