MCP Client Compatibility
Which MCP features does each client actually support? These answers come from independent tests, not vendor claims, and every result links to the protocol traffic that proves it. Last tested .
Results
| Client | Tools List and call a tool | Prompts List and get a prompt | Resources List and read a resource | Protocol on the wire | Last tested |
|---|---|---|---|---|---|
| Claude Code v2.1.296 | Supported | Supported | Supported | 2026-07-28 modern era |
One client so far. Side by side comparisons arrive once a second client is tested. 7 test results recorded in total.
What the statuses mean
- SupportedSupported
- Every expected step was observed on the wire and the result reached the model.
- PartialPartial
- Some steps were observed but not all, for example a tool was listed but never called.
- UnsupportedUnsupported
- The client connected and ran, but never made the expected requests.
- Test failedTest failed
- The test itself failed to run, so it says nothing about support either way.
- Not testedNot tested
- No result yet. Not tested never means unsupported.
Use the data
Every result on this site, including the wire evidence, is available as one JSON file: compat.json. It is the same snapshot these pages are built from.