{"message":"Webhook / upgrade test server","proto":"HTTP/1.1","routes":{"ANY /bodyhex":"echo raw request body text and hex","ANY /dump":"echo request details as plain text","ANY /echo":"echo request details as JSON","ANY /lab/421":"421 Misdirected Request","ANY /lab/426/h2c":"426 Upgrade Required with Upgrade: h2c","ANY /lab/426/ws":"426 Upgrade Required with Upgrade: websocket","ANY /lab/chunked":"manual chunked response over raw connection","ANY /lab/close":"write partial response then close connection","ANY /lab/redirect/external":"302 redirect to https://example.org/","ANY /lab/redirect/local":"302 redirect to /echo","ANY /lab/slow":"sleep before responding, query: ms","ANY /lab/status":"configurable status/body/headers via query params","GET /":"this index","GET /healthz":"health check","GET /lab/101/h2c":"manual 101 h2c response and post-upgrade byte logging","GET /lab/101/plain":"manual 101 plain upgrade response and post-upgrade byte logging","GET /lab/101/ws":"manual 101 websocket response and post-upgrade byte logging","GET /ws":"websocket echo endpoint","POST /mcp":"minimal MCP server with raw_http_request tool"},"server_time":"2026-04-09T16:31:55.103636+02:00"}