Resend REST API

REST declared

Details

URL: https://api.resend.com
Spec: https://resend.com/openapi.yaml
Spec (json): https://resend.com/openapi.json
Docs: https://resend.com/docs/api-reference

Authentication

Resend API key api_key declared Get key ↗

Authorization: Bearer <credential>

Create an API key from the Resend dashboard as described in Create an API key. In the dashboard API keys page, click Create API Key, name it, and choose either full access or Sending access; sending-only keys can also be restricted to a specific domain. Resend shows the key once; store it securely and use it as Authorization: Bearer re_.... You can also create keys via the API key API, the Resend CLI, or the Resend MCP server.