InboxSink

An email-testing service with an API for creating disposable inboxes and waiting for messages in signup-flow tests.

API

What your agent can do

Tasks depend on the interface and permissions.

Choose a route that fits your agent.

For custom integrations

an access token

Docs checkedView paths

API connection

API path

https://inboxsink.com/v1/inboxes

Authentication: One Authorization header per call. Keys are created from the dashboard and start with ibsk_
Pricing: Free tier · Free API key · The free account includes an API key capped at a thousand calls a month, enough to evaluate without commitment. No card asked.