Vercel Log Drains Webhooks

Vercel Log Drains forward deployment logs to any HTTPS endpoint you configure. These are HTTP log-drain deliveries (not "Vercel webhooks" and not Standard Webhooks): Vercel POSTs batches of log entries and signs the raw body with HMAC-SHA1.

When to Use This Skill

• How do I receive Vercel Log Drains?
• How do I verify the x-vercel-signature header?
• How do I complete the x-vercel-verify endpoint handshake?
• Why is my Vercel log drain signature verification failing?
• How do I parse batched log entries (JSON array or NDJSON)?
• How do I handle logs from lambda, edge, build, or firewall sources?

Verification (core)