You built an MCP server. Your users will plug it into whatever model they already pay for — so which ones will get your tools right? Paste your server URL below. The Gauntlet writes a test suite for your tools, runs it against 100+ models in parallel, and gives you a catalog you can put in your README.
Free accounts can test against 12 models to get a feel for it. Paid plans unlock the full fleet and daily health monitoring.
The HTTP endpoint your MCP server listens on (the same URL you'd give Claude or Cursor).
Stored encrypted, deleted with the run after 14 days.
If you already know what a correct call looks like, add it here — your cases are used as-is and anchor the grading.
We re-check your monitored servers every day: is it up, did any tool schemas change, and do the verified test calls still work. No model spend — it reuses the tests from your run.