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Integration

Sendoso

Send gifts and direct mail at scale. Your client pastes their Sendoso key once, and your agent or your code works with their access.

Marketing

About Sendoso

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

Common uses in Marketing

  • Add subscribers and keep lists in sync
  • Build and schedule campaigns
  • Pull results into a client report

Sendoso

Sendoso · Marketing

API key

Send gifts and direct mail at scale

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

Tested against Sendoso's live API.

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

Open the Sendoso docs

Tools

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

Base URL for request

https://app.sendoso.com/api/v3

  • request

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

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

    servicestringrequired
    This service: sendoso
    methodstringrequired
    GET, POST, PUT, PATCH or DELETE
    pathstringrequired
    The path under https://app.sendoso.com/api/v3
    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 Sendoso 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.