v4

OpenAPI 3.1.02026-08-012281296.0 MB
Validation

Validate a single email

Checks if a given email is likely to bounce using a waterfall of strategies. Works for catch-all email addresses, which are increasingly common yet hard for other APIs to validate.

<span><strong>Rate limit:</strong> 10 requests per 1 minute</span>

<span>💰 <strong>Cost:</strong> 1 credit per email validation <span title="Pricing shown is default pricing. Actual pricing may vary."></span></span>

post/v1/validate-email/single

Request body

apiKeystring required

Your Fiber API key

emailstring email required

The email address to validate.

Response

Default Response

advicestring[] nullable

Tips, recommendations, and suggestions for using this API effectively.