# Power Signals

## Docs

- [Grid Stress Index](https://docs.powersignals.co.za/api-reference/features/grid-stress.md): Returns the Grid Stress Index for the given time range. This is a derived signal computed from grid system state data, indicating overall grid stress level. Only 1h interval is supported.
- [Grid System State](https://docs.powersignals.co.za/api-reference/grid/system-state.md): Returns South African grid system state data for the given time range. Supports hourly (1h) and daily (1d) intervals. Requires API key authentication.
- [Authentication](https://docs.powersignals.co.za/guides/authentication.md): How to authenticate with the Power Signals API using API keys.
- [Data Provenance](https://docs.powersignals.co.za/guides/data-provenance.md): Where our data comes from and how we handle it.
- [Error Handling](https://docs.powersignals.co.za/guides/errors.md): Standard error responses and how to handle them.
- [Quick Start](https://docs.powersignals.co.za/guides/quickstart.md): Get your first API response in under 2 minutes.
- [Rate Limits](https://docs.powersignals.co.za/guides/rate-limits.md): Understand API rate limits and how to handle throttling.
- [Support](https://docs.powersignals.co.za/guides/support.md): How to get help with the Power Signals API and dashboard.
- [Introduction](https://docs.powersignals.co.za/index.md): South African power-market infrastructure for AI agents and developers.

## OpenAPI Specs

- [openapi](https://docs.powersignals.co.za/openapi.yaml)