Skip to main content
SendFlit has a Resend-compatible API at https://api.sendflit.com/resend. Requests and responses use Resend’s shapes, including its error format, so moving usually means changing the key and the base URL.

​
Steps

  1. Verify your domain in SendFlit. See the Quickstart.
  2. Create a SendFlit API key with the sending scope.
  3. Change the base URL and key:
With the Resend Node SDK, set the RESEND_BASE_URL environment variable to https://api.sendflit.com/resend and use your SendFlit key. With other SDKs or plain HTTP, point the client at the same base URL.
  1. Send a test email and check its status.

​
What’s supported

  • Sending: single emails, batch sends, scheduled sends, and cancelling and rescheduling.
  • Reading emails back.
  • Domains: create, list, get, and verify.

​
What isn’t supported yet

  • More than one address in to. Use cc and bcc, or send one email per recipient with the batch endpoint.
  • Attachments by URL.
  • Natural-language scheduling, such as “in 1 hour”. Use an ISO 8601 timestamp.
  • Audiences, contacts, broadcasts, and API key endpoints.
Unsupported endpoints return a clear validation_error or 404 instead of partially working.

​
Webhooks

Create the webhook endpoint in SendFlit with the Resend-compatible format. The payload and the Svix-style signature headers then match Resend’s, so the verification code you already have keeps working. See Webhooks.