MailPay

API Documentation

MailPay public REST API — manage payment requests, contacts, and webhooks programmatically.

Documentation

AuthenticationPayment RequestsContactsWebhooksSupportSwagger UI

Authentication

All API requests require a Bearer token. Generate an API key in Settings > API Keys within your organization.

Include it in every request as an Authorization header:

Authorization: Bearer mp_your_api_key_here
Keep your API key secret. Do not expose it in client-side code or public repositories.