{"entry":{"slug":"mozilla-observatory-api","name":"Mozilla HTTP Observatory","category":"api","summary":"Grades a site's HTTP security headers and configuration.","description":"","auth_mode":"None","endpoint":"https://observatory-api.mdn.mozilla.net/api/v2/scan","docs_url":"https://developer.mozilla.org/en-US/observatory/docs/tests_and_scoring","tags":["security","web"],"capabilities":["security scan","check security headers","audit website"],"auth_params":[],"input_format":"Query parameters","output_format":"application/json","rate_limit":"Fair use","pricing":"Free","invocation_example":"","verified":false,"verified_at":null,"featured":false,"checks_total":58,"checks_ok":58,"avg_latency_ms":242,"reports_count":0,"health_ok":true,"health_status_code":404,"health_checked_at":"2026-11-06T05:17:09.238+00:00","health_latency_ms":201,"probe_url":null},"watch":{"hint":"Follow \"mozilla-observatory-api\": get alerted when it goes down, comes back, or changes shape. Free, 3 tools per key. Email follows are confirmed by a one-click email before alerts start.","how":"POST https://agentnexus.app/api/public/watch with {\"slug\":\"mozilla-observatory-api\"} and your x-api-key (the key's email gets the alerts), or add \"email\" / \"webhook_url\". Email follows must be confirmed from the inbox before alerts start."}}