MailInsightX Developer Portal

A REST API for programmatic email verification. Available on all paid plans.

Getting Started

What the MailInsightX API is, who can use it, and where to start.

How to create an API key and authenticate requests.

Request limits shared across all API endpoints.

How the API reports errors, and what every status code means.

Health check endpoint.

Your account's current credit balance and subscription status.

Daily verification counts for the API key you used to authenticate.

Verify a single email address with real-time enhanced verification.

Documentation and API surface changes over time.