{"id":"sparkpost-api","name":"SparkPost (Bird) API","af_score":77.1,"security_score":null,"reliability_score":null,"what_it_does":"SparkPost (now part of Bird) email delivery API for transactional and marketing email with advanced deliverability analytics, SMTP relay, and recipient validation.","best_when":"You need enterprise-grade transactional email with deep deliverability analytics and ISP relationship management.","avoid_when":"You need simple developer-friendly email (Resend/Postmark) or built-in marketing campaign tools.","last_evaluated":"2026-03-01T09:50:06.245404+00:00"}