# Router APIs Specifications

The Router, currently in the Sandbox environment for the POC, implements all ReBIT API specifications as detailed in [ReBIT API Documentation](https://api.rebit.org.in).

The following pages provide an overview of these API implementations.

* [Financial Information User (FIU) API Specification](https://developer.sahamati.org.in/no-longer-relevent/technical-specifications/router-api-specs/open-api-specification/fiu-api-specification)
* [Account Aggregator (AA) API Specification](https://developer.sahamati.org.in/no-longer-relevent/technical-specifications/router-api-specs/open-api-specification/aa-api-specification)
* [Financial Information Provider (FIP) API Specification](https://developer.sahamati.org.in/no-longer-relevent/technical-specifications/router-api-specs/open-api-specification/fip-api-specification)