Kaval runs on your own machine — the client starts it, so there is no endpoint to ping. Last commit 11 Sep 2026.
Verify the facts an agent's action depends on before it acts — ALLOW, REVIEW, or BLOCK.
What changed 1
Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 9 August 2026. No other catalogue keeps this.
Nothing serious here today
Today is the operative word: we check Kaval every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Alternatives to Kaval
same job, measured the same wayVerify the facts an agent's action depends on before it acts — ALLOW, REVIEW, or BLOCK.
Vet any MCP server before you depend on it. Stamp: PASS, REVIEW, or BLOCK.
Your agent verifies its change before commit; PR review that knows what depends on your change.
Check an email before your AI agent sends it: allow, review or block with reasons.
Deterministic allow/require_approval/deny verdicts for agent actions, before they happen.
Check whether a real-world fact can be verified before an agent acts on it. Free, no auth.
Offline scam check for agents: verify links and payments before acting (allow, ask or deny).
Check an email before an AI agent sends it: send / ask a human / block. Detects prompt injection.
Kaval — questions
Answers built from our own checks of this server.