{"id":"sinch-api","name":"Sinch","homepage":"https://www.sinch.com","repo_url":"https://github.com/sinch","category":"communication","subcategories":["sms","voice","email","messaging"],"tags":["sinch","sms","voice","whatsapp","messaging","communication","mailgun"],"what_it_does":"Multi-channel communication platform (owner of Mailgun and Mailjet) offering SMS, voice, WhatsApp, and email APIs through a unified cloud communications platform for programmatic customer engagement.","use_cases":["Sending transactional SMS notifications for OTP, alerts, and status updates","Building voice call automation for IVR systems and outbound call workflows","Sending WhatsApp Business messages via the Sinch unified API","Number lookup and phone number verification for user onboarding","Combining SMS + email + voice in a single multi-channel communication workflow"],"not_for":["Email-only workflows (Mailgun directly is simpler if you only need email)","In-app messaging or chat (use Sendbird or Stream for in-app messaging)","Organizations needing primarily carrier-grade voice infrastructure (use Twilio or Bandwidth)","Very small-scale usage where per-message costs dominate"],"best_when":"You need multi-channel communication (SMS + voice + email + WhatsApp) from a single vendor with competitive pricing and global carrier coverage.","avoid_when":"You only need one channel (use the best-in-class single-channel provider), or you need advanced programmable voice features that Twilio does better.","alternatives":["twilio-api","vonage-api","bandwidth-api","mailgun-api"],"af_score":72.6,"security_score":null,"reliability_score":null,"package_type":"mcp_server","discovery_source":["github"],"priority":"low","status":"evaluated","version_evaluated":"current","last_evaluated":"2026-03-01T09:50:06.205556+00:00","performance":{"latency_p50_ms":150,"latency_p99_ms":600,"uptime_sla_percent":99.9,"rate_limits":"Varies by product; SMS typically throttled by carrier limits","data_source":"llm_estimated","measured_on":null}}