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Prerequisites

Before you can start using the SIPSIM API, make sure you have the following:

SIPSIM Account​

You need an active SIPSIM account with administrator access. The API integration feature is available to account administrators only.

Don't have an account?

Visit sipsim.fr to sign up for a SIPSIM business phone account.

API Access Permissions​

To create and manage API integrations, you must be either:

  • Account Administrator — Full access to all integration settings
  • Super User — Can create and manage API integrations

Regular employees cannot create API integrations.

Technical Requirements​

Understanding of REST APIs​

The SIPSIM API is a RESTful API that uses:

  • HTTP methods: GET, POST, PATCH, PUT, DELETE
  • JSON: All request and response bodies use JSON format
  • HTTPS: All API communication is encrypted

OAuth 2.0 Basics​

The API uses OAuth 2.0 with the Client Credentials flow for authentication. This is a simple server-to-server authentication — you just need your Client ID and Client Secret to get an access token.

If you're new to OAuth 2.0, don't worry — we'll walk you through the entire process in the Authentication guide.

Next Steps​

Once you have these prerequisites in place, you're ready to:

  1. Create your API Integration — Set up credentials in the SIPSIM dashboard
  2. Authenticate with OAuth 2.0 — Get your access token
  3. Make your first API call — Start integrating!