NewsOperate As is live. Send your first client one link

Integration

Prelude

Phone number verification and OTP codes. Your client pastes their Prelude key once, and your agent or your code works with their access.

Phone and SMS

About Prelude

Through Operate As, your agent, n8n workflow or code works in Prelude with your client's own access. Your client pastes their API key from Prelude once. We store it encrypted, so it never sits in an email or a shared doc. It comes with 54 ready-made tools for Prelude's API, and the request tool reaches any endpoint they don't cover.

Common uses in Phone and SMS

  • Send appointment reminders and confirmations by text
  • Log calls and messages against the right customer
  • Follow up on missed calls

Prelude

Prelude · Phone and SMS

API key

Phone number verification and OTP codes

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

Tested against Prelude's live API.

Tools

Every tool your agent gets for Prelude. Select one to see its inputs and an example call.

  • Loading every tool…

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

Open the Prelude docs

Any other endpoint

The request tool calls any Prelude endpoint the tools above don't cover, with the client's access attached.

Base URL for request

https://api.prelude.dev/v2

  • request

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

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

    servicestringrequired
    This service: prelude
    methodstringrequired
    GET, POST, PUT, PATCH or DELETE
    pathstringrequired
    The path under https://api.prelude.dev/v2
    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 Prelude 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.