Email delivery that stays out of your way
Send transactional email and newsletters, manage opted-in audiences, and receive signed delivery events with the CHACHA Email API.
Built for production email integrations
- Transactional email — Send receipts, password resets, alerts, and product notifications through one authenticated endpoint.
- Recipients and lists — Keep opted-in contacts synchronized and organize audiences for newsletter delivery.
- Campaign delivery — Create email campaigns, trigger controlled bulk sends, and review aggregate send outcomes.
- Status and events — Look up message status or receive HMAC-signed delivery, bounce, and complaint webhooks.
Consistent API conventions
Authenticate with a revocable Bearer API key. Every error uses a consistent JSON envelope, and every key has a documented per-minute request limit.
Signed delivery webhooks
Delivery events are signed with HMAC-SHA256 so your application can verify each payload before acting on it.