Introduction
The Mailyard API is REST over HTTPS with JSON responses. Authenticate with a secret key in the Authorization header. All requests go to https://api.mailyard.com/v1.
- 200 / 201
- It worked.
- 422
- A parameter is missing or wrong. The errors say which.
- 401
- The key is missing or revoked.
- 429
- Too many requests. Slow down and retry.