Webhook Tester — Send & Measure HTTP Endpoints

Webhook testing API for AI agents. Send POST/PUT/PATCH/DELETE requests to any endpoint with custom headers and JSON payloads. Measure response latency, TLS handshake time, and status codes. Tools: api_test_webhook. Use this for API integration testing, webhook debugging, endpoint monitoring, or health checks. Returns detailed timing breakdown. Returns: {status, latency, tlsTime, body}. No API key required — x402 micropayment $0.002/call on Base L2.