The best way to reach humans instead of spam folders. Powerful APIs that fit right into your code.
Early bird: 50% off forever for waitlist members
Built for teams who ship fast
Integration
One API call. SDKs for every language you use.
curl https://api.fiwy.io/v1/emails \ -H "Authorization: Bearer fw_live_..." \ -H "Content-Type: application/json" \ -d '{ "from": "[email protected]", "to": ["[email protected]"], "subject": "Welcome aboard", "html": "<p>Thanks for signing up!</p>" }'
Real-time
Track every email from the moment it's queued to the second it's opened.
Webhooks
Get notified the instant something happens. Deliveries, opens, clicks, bounces — all pushed to your endpoint.
Deliverability
Every tool you need to maximize deliverability and protect your sender reputation.
Automatic DNS record generation and guided setup for authentication.
Real-time DMARC compliance reports so you catch issues before ISPs do.
Continuous monitoring of your DNS records with alerts if anything breaks.
Automatic handling of bounces and complaints. Never send to a bad address twice.
Get your own sending IPs with automated warmup for maximum reputation control.
Per-domain delivery rates, open tracking, click tracking, and reputation scoring.
Send from the region closest to your users for faster delivery and data compliance.
Simulate sends without delivering. Test your integration end-to-end safely.
Built-in idempotency keys. Retry safely without ever sending duplicate emails.
We switched our entire transactional pipeline to Fiwy in under an hour. The API is exactly what email should feel like — simple, fast, and it just works.
Dashboard
Monitor every metric that matters.
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