About and method

This site tracks which MCP features each client supports. Server builders can use it to decide what to rely on.

How cells are filled

• Yes: the vendor's docs or changelog say it's supported, or a published live test shows it working.
• Partial: limited, only on some surfaces, or advertised but not yet exercised.
• No: the docs or a live test say it's not supported.
• Unknown: we couldn't verify it. That doesn't mean it's unsupported. We never guess.

Every cell stores its source URL and the date it was last checked. Sources are mostly official docs. A few cells use independent trackers that publish their evidence, such as Elicitly (live elicitation tests) and MCP Step by Step. Those cells link to them directly.

Found a mistake? Send a correction with a source link.

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