What is sendotp.email?

sendotp.email is an API for email one-time passwords and access codes. It sends an OTP to an email address and verifies it for login, lists, private content, generated reports, and other email-gated flows, keeping the code stable for 10 minutes and rejecting disposable email addresses.

How long is an OTP stable?

The same email address receives the same OTP for 10 minutes. Repeated calls during that window are idempotent and do not create a rolling bucket of new codes.

Does it block disposable email addresses?

Yes. Known disposable and throwaway email domains are rejected before an OTP is sent, so verifications for lists, reports, private content, and signups land on real, reachable inboxes.

Can I use email OTPs for generated reports or private content?

Yes. You can verify the visitor's email before showing a generated report, file download, private album, or client portal, then let the same address request a stable code again when they come back.

OTP

Health check

Check that the OTP Worker is reachable.

Copy page

GET/v1/health

Health

cURL

curl --request GET \
  --url https://api.sendotp.email/v1/health

200

The Worker is reachable.

{
  "ok": true
}

Overview

Returns a small JSON payload when the public OTP service is up.

Authorization

Nonenone

This endpoint is unauthenticated.

Responses

200

The Worker is reachable.

{
  "ok": true
}