Overview

January's developer platform provides one API for food search, food analysis, food, water, and weight logging, restaurant discovery, and sensor-free glucose prediction.

Choose where to begin

• Follow the Quickstart to make your first request.

• Connect a coding agent with the MCP server.

• Read How authentication works before deciding where your app's credentials live.

• Explore the REST API reference for every endpoint and schema.

• Choose the iOS, Android, React Native, or Web SDK for client applications.

API base URL

All REST requests use:

https://partners.january.ai

Paths start with the API version, /v1.2; for example, https://partners.january.ai/v1.2/foods. Every request uses HTTPS and carries a bearer credential. API v1.1 is the legacy version.

Typical integration

1. Create an API key in the January Developer Dashboard and keep it on your backend.

2. Call January from your backend with the key, or add a token endpoint so your apps can call January with short-lived client tokens.

3. Identify each person with a stable end-user ID for operations on that person's data, such as food, water, and weight logs.

Continue with the Quickstart to try a food search.