SendGrid Web API v3
SendGrid Web API liveness (api.sendgrid.com): an unauthenticated GET to /v3/scopes returns HTTP 401 when the email API is up, an auth-gated liveness probe with real uptime and latency.
Reachable, auth required
Last checked · response time 222 ms
90-day uptime
Recent changes
No changes detected since monitoring began.
Integrate
The live status, 90-day uptime figure and change history on this page are also machine-readable: embed the badge, poll the JSON, or subscribe to the feed. No key needed.
Status badge: 
Markdown embed: [](https://guardiandev.ai/apis/sendgrid-api)
Machine-readable: JSON (versioned v1, CORS-enabled) · Atom feed of drift & outage events.
Guardian probes https://api.sendgrid.com/v3/scopes about every 5 minutes. How Guardian measures.