Conformance Validator FAQs

Question 1

What is the Conformance Validator?

Accepted Answer

The Conformance Validator is a developer tool designed to ensure Model Context Protocol (MCP) server implementations strictly adhere to official specifications and best practices, promoting interoperability and reliability.

Question 2

How can developers integrate this tool into their workflow?

Accepted Answer

Developers can use the Conformance Validator via its command-line interface (CLI) for direct execution or integrate it programmatically using its TypeScript library, making it suitable for CI/CD pipelines and automated testing.

Question 3

Does it help maintain compatibility between server versions?

Accepted Answer

Yes, it includes utilities to compare server manifests and assert no breaking changes between different test reports, which is crucial for managing API evolution and ensuring backward compatibility.

Question 4

Which MCP specification versions are supported by the validator?

Accepted Answer

The Conformance Validator supports multiple official MCP specification versions, including 2024-11-05, 2025-03-26, and 2025-06-18, adapting its validation suites to the specific version chosen for testing.

Question 5

What key aspects of an MCP server does it validate?

Accepted Answer

It performs comprehensive validation across multiple domains including JSON-RPC 2.0 wire compliance, spec-version handshake, transport behavior (stdio/HTTP), OAuth 2.1 PKCE, tool schemas, advertised capabilities, automated roundtrip tests, and annotation hygiene.

Conformance Validator

Conformance Validator

Key Features

Use Cases

Key Features

Use Cases