API Access FAQ

Is there a developer API?

Yes. MailInsightX offers a REST API for programmatic email verification. Full technical documentation - authentication, endpoints, request/response schemas, rate limits, and error codes - lives in the developer portal, separate from this Help Center.

Who can use it?

API access requires a paid plan (Starter, Business, or Enterprise). It isn't available on the Free plan.

How do I get an API key?

From your dashboard, go to API Keys and generate a new key. See the developer portal's authentication guide for the full walkthrough, including how the key is displayed (once, in full) and how it's identified afterward.

What does the API cost to use?

API verification spends InsightX+ credits, the same pool used for deep SMTP checks elsewhere in the product - see Two Credit Pools: Standard vs. InsightX+.

Where do I go from here?

Head to the developer portal for the complete reference.