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Integration

Simply Send

Email by API or SMTP relay, plus marketing campaigns and automations. Your client pastes their Simply Send key once, and your agent or your code works with their access.

Email

About Simply Send

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

Simply Send

Simply Send · Email

API key

Email by API or SMTP relay, plus marketing campaigns and automations

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

Tested against Simply Send's live API.

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

Open the Simply Send docs

Tools

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

Base URL for request

https://tapi.simplysend.email

  • request

    HTTPS ANY /v1/clients/{clientId}/simply-send/{path}

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

    servicestringrequired
    This service: simply-send
    methodstringrequired
    GET, POST, PUT, PATCH or DELETE
    pathstringrequired
    The path under https://tapi.simplysend.email
    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 Simply Send 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.