{"entry":{"slug":"postmark-api","name":"Postmark","category":"api","summary":"Transactional email with fast delivery and per-message tracking.","description":"Send single or batch email, use templates, read delivery, bounce and open events.","auth_mode":"X-Postmark-Server-Token header","endpoint":"https://api.postmarkapp.com","docs_url":"https://postmarkapp.com/developer","tags":["email","transactional"],"capabilities":["send_email","batch_send","templates","delivery_events"],"auth_params":[],"input_format":"application/json","output_format":"json","rate_limit":"documented per endpoint","pricing":"per 1k emails","invocation_example":"curl -s -X POST https://api.postmarkapp.com/email -H \"X-Postmark-Server-Token: $POSTMARK_TOKEN\" -H \"Content-Type: application/json\" -d '{\"From\":\"you@example.com\",\"To\":\"dest@example.com\",\"Subject\":\"Hi\",\"TextBody\":\"Hello\"}'","verified":false,"verified_at":null,"featured":false,"checks_total":1,"checks_ok":1,"avg_latency_ms":588,"health_ok":true,"health_status_code":200,"health_checked_at":"2026-09-17T18:17:07.244+00:00","health_latency_ms":588,"probe_url":null}}