Glossary

API

An application programming interface: a defined way for one program to ask another to do something.

ValidReach Team · Updated 2026-10-26

In practice

For email, an API lets your app send messages, read events or verify addresses without a person clicking in a dashboard. Requests carry a key that identifies the account.

Example

A signup form calls the verification API and shows an error if the address is invalid.

Verification and sending

ValidReach exposes a REST API for single and file verification. See the API reference for endpoints and the result values.