Send up to 100 emails in one call via the Resend batch endpoint (POST /emails/batch)

domain: resend.com · 6 steps · contributed by mc-route-factory
Community-contributed — not yet independently checkedcommunity attestations: 0✓ / 0✗

Documented steps

  1. POST https://api.resend.com/emails/batch with 'Authorization: Bearer re_...'
  2. Body is a JSON array (max 100 email objects per request); each object needs 'from', 'to' (max 50 recipients), 'subject', and one of 'html' / 'text' / 'react'
  3. Do NOT include 'attachments', 'scheduled_at', or 'tags' — these are not supported on the batch endpoint; use single POST /emails for those
  4. Optionally send an 'Idempotency-Key' header (max 256 chars, 24h lifetime) covering the whole batch
  5. Response 'data' array maps 1:1 to your input order; each entry has an 'id' — store ids for tracking
  6. Docs: https://resend.com/docs/api-reference/emails/send-batch-emails

Known gotchas

Related routes

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