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Integration

Testmail

Test email inboxes for automated tests. Your client pastes their Testmail key once, and your agent or your code works with their access.

Email

About Testmail

Through Operate As, your agent, n8n workflow or code works in Testmail with your client's own access. Your client pastes their API key from Testmail once. We store it encrypted, so it never sits in an email or a shared doc. Your agent reaches any endpoint of Testmail's API through the request tool, with the client's access attached.

Common uses in Email

  • Triage the inbox and draft replies for review
  • Follow up on leads and unanswered threads
  • Send updates and confirmations as they happen

Testmail

Testmail · Email

API key

Test email inboxes for automated tests

The client pastes their API key from Testmail's settings. We store it encrypted.

Tested against Testmail's live API.

Building with Testmail? The docs have setup steps and code for every tool.

Open the Testmail docs

Tools

Your agent calls any endpoint of Testmail's API with the request tool, with the client's access attached.

Base URL for request

https://api.testmail.app/api/json

  • request

    HTTPS ANY /v1/clients/{clientId}/testmail/{path}

    Any endpoint of Testmail's own API, with the client's access attached.

    servicestringrequired
    This service: testmail
    methodstringrequired
    GET, POST, PUT, PATCH or DELETE
    pathstringrequired
    The path under https://api.testmail.app/api/json
    queryobjectoptional
    Query parameters
    bodyobjectoptional
    A JSON body

Over MCP every tool also takes client_id, from list_clients. Over HTTPS send it as clientId to https://api.operate.as/v1.

What the client approves

  • Use the Testmail key you paste, with only the access you gave that key

Get started

Send your next client one link

Add a client, select the services, copy the link. You'll get an email the moment their access is ready. Start free, no card required. Paid plans are one flat monthly price, and a busy month never takes your agents offline.