Transactional email you can see through.

One API, one price, built on open source infrastructure in the EU.

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One API call. You can see every step.

curl https://api.flywheel.email/v1/sends \
  -H "Authorization: Bearer fly_..." \
  -H "Content-Type: application/json" \
  -d '{"to":"user@example.com","subject":"Your receipt","html":"<p>Thanks.</p>"}'
Flywheel is independent. Not owned by a marketing automation company. Not backed by growth-stage VC. Built on open source infrastructure, running in the EU, with one job: getting your transactional email delivered.

Open stack

Built on proven, open source tools you can inspect and understand. No proprietary black box between you and your email.

Simple pricing

Starts at EUR 5 per 1,000 emails. Support included. No feature tiers, no surprises.

EU infrastructure

Hosted in Germany. Your data is completely separated from other customers and never leaves Europe.

See for yourself.

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