Verify emails from your own app, in one call.
A real-time email verification and validation API: one REST endpoint per job (verify, bulk lists, email finder, domain health, webhooks). Clear JSON, real reasons, and free test keys to build without spending credits.
Email verification API
curl -X POST …/api/v1/verify \
-H "Authorization: Bearer rs_live_…" \
-d '{"email":"jane@acme.com"}'
// 200 OK
{ "status": "valid", "reason": "MAILBOX_EXISTS", "score": 97 }
Email verification API, done right.
One call per address
POST /v1/verify returns status, reason, score, suggestion and provider.
Bulk and finder too
Lists, exports, email finder and domain health by API.
Free test keys
rs_test_ keys answer @sandbox.test addresses offline, for CI and demos.
Generous limits
120 requests per minute per key, with RateLimit headers.
Webhooks
Signed events when lists and searches finish.
Three steps. No setup.
Create a key
Live or test, in the dashboard.
Call the API
cURL, Node.js, Python, any language.
Handle the answer
A status and a reason for every address.
Simple pricing
Same credits as the dashboard · free test keys.
- 100 free credits to start
- Every tool in every plan
- Pack credits never expire
Questions, answered.
The short version of how Confirmail works.
The API is plain REST and JSON, so any HTTP client works. The documentation has copy-paste examples in cURL, Node.js and Python.
More tools in the same account.
Your next campaign deserves real inboxes.
Create your account and get 100 credits on us. No card, no commitment, results in seconds.