# Monitor YT > Learn how to track YouTube channels, review changes, and use the Monitor YT API. ## Docs - [Account and billing](https://monitoryt.com/docs/account-and-billing.md): Manage your subscription, API key, sessions, and account. - [Check API health](https://monitoryt.com/docs/api-reference/public-api/check-api-health.md): Returns a minimal response when the API is available. - [Fetch feed events](https://monitoryt.com/docs/api-reference/public-api/fetch-feed-events.md): Returns the authenticated Pro user’s feed with cursor pagination and optional channel and event-type filters. - [Fetch tracked video data](https://monitoryt.com/docs/api-reference/public-api/fetch-tracked-video-data.md): Returns metadata, counters, events, and historical stat samples for up to 20 videos belonging to channels tracked by the authenticated Pro user. - [Authentication](https://monitoryt.com/docs/authentication.md): Authenticate requests with a personal Monitor YT API key. - [Detection and data freshness](https://monitoryt.com/docs/detection-and-freshness.md): Learn what Monitor YT observes, how often it checks, and where public data has limits. - [Errors and rate limits](https://monitoryt.com/docs/errors-and-rate-limits.md): Handle API failures, retries, and request budgets safely. - [Event types](https://monitoryt.com/docs/event-types.md): Understand the activity that can appear in your feed. - [API event objects](https://monitoryt.com/docs/events-api.md): Understand shared event fields and type-specific response data. - [Feed](https://monitoryt.com/docs/feed.md): Review channel and video activity in one timeline. - [Fetch feed events](https://monitoryt.com/docs/feed-api.md): Filter and page through the authenticated account's activity feed. - [Getting started](https://monitoryt.com/docs/getting-started.md): Add channels and begin reviewing their activity. - [Monitor YT](https://monitoryt.com/docs/index.md): Track meaningful changes across the YouTube channels you follow. - [Pagination and filters](https://monitoryt.com/docs/pagination.md): Page through feed events and constrain API requests safely. - [Plans](https://monitoryt.com/docs/plans.md): Compare Free and Pro access. - [API quickstart](https://monitoryt.com/docs/quickstart.md): Generate an API key and fetch your first feed page. - [Tracking channels](https://monitoryt.com/docs/tracking-channels.md): Choose and manage the public YouTube channels you follow. - [Troubleshooting](https://monitoryt.com/docs/troubleshooting.md): Resolve common channel, feed, history, account, and API issues. - [Video history](https://monitoryt.com/docs/video-history.md): Understand how a video and its presentation change over time. - [Fetch video data](https://monitoryt.com/docs/videos-api.md): Retrieve current metadata, creative events, and public stat samples for tracked videos. ## OpenAPI Specs - [openapi](https://monitoryt.com/openapi.yml)