# Introduction

Welcome to the Xpansiv Optimal Outcomes API. You can use our API to interact with Optimal Outcome Registries.

### Supported Interactions:

1. **Project/Resource Management** Resource API
2. **Meter Data Management** Telemetry API
3. **File Management** File Registry API
4. **Holdings Management** Transfer/Position API
5. **Program Reporting** Reporting API


Reference endpoints are also available, so you can successfully complete all listed registry interactions.