# Topics.so

> Topics.so tracks published social posts across Instagram, LinkedIn, and YouTube, groups them into topics, and reports how each one performs. The public REST API exposes a brand's posts and their metrics.

## Docs

- [API reference](https://topics.so/docs/api.md): Complete REST API reference. Authentication, rate limits, caching guidance, endpoints, and worked examples.
- [OpenAPI spec](https://topics.so/api/v1/openapi.json): OpenAPI 3.1 document for the same API.

## Notes

- API keys are created in the Topics.so dashboard and are secrets: server-side use only, never in browser code.
- Metrics refresh every 30 minutes. Cache responses; monthly request quotas are small on the free plan.