Send the verification email to an email address
POST /v1/users/{user_id}/emails/{email_id}:send-verification · permission users:write
Sends the verification email to one email row of the user. email_id is the internal UUID (lowercase, hyphenated). The response carries the expiry of the verification request; no code or link is returned. The optional body only selects the email language.
Request
| Parameter | In | Required | Description |
|---|---|---|---|
user_id |
path | yes | User id, prefixed usr_. |
email_id |
path | yes | Id of the email row (internal UUID, lowercase, hyphenated). |
Optional body:
| Field | Type | Required | Description |
|---|---|---|---|
locale |
string | no | BCP 47 language tag of the email, for example tr or pt-BR. Defaults to the user's or the environment's language. |
Response
200 OK. expires_at is when the verification request expires.
{
"expires_at": "2026-01-16T09:30:00Z"
}
Errors
Every error is an application/problem+json body with a stable code.
| HTTP | code |
When |
|---|---|---|
| 400 | malformed_request, unknown_field |
The body is not valid JSON or has an unknown field. |
| 409 | conflict |
The email is already verified. |
| 415 | unsupported_media_type |
A body was sent without Content-Type: application/json. |
| 422 | validation_failed |
locale is not a valid BCP 47 language tag, or a field has the wrong type. |
| 404 | not_found |
The user or the email row does not exist in this environment, the email does not belong to this user, or an id is malformed. |
| 401 | unauthenticated |
The API key is missing, invalid or revoked. |
| 403 | insufficient_permissions |
The key lacks the users:write permission. |
| 429 | rate_limited |
The API rate limit or the per-user email sending limit was exceeded; honor Retry-After. |
| 503 | service_unavailable |
A dependency is temporarily unavailable; retry later. |
Example
curl -X POST https://api.eu.keenauth.com/v1/users/usr_0a1b2c3d4e5f6g7h8j9k0m1n2p/emails/0191f0a0-3333-7444-8555-666666666666:send-verification \
-H "Authorization: Bearer $KEENAUTH_SECRET_KEY" \
-H "Idempotency-Key: $(uuidgen)" \
-H "Content-Type: application/json" \
-d '{"locale": "en"}'
Personal data
This endpoint carries personal data: end-user profile. Personal data in the KeenAuth APIs describes what is stored, how long it is kept and how it is deleted. Do not send special categories of personal data (health, biometric data, religion, political opinions, sexual orientation) in any field.