# Page Not Found

The URL `guardian/guardian/map-related-apis/returning-sentinel-api-key` does not exist.

You might be looking for one of these pages:
- [Returning Sentinel API Key](https://guardian.hedera.com/guardian/map-related-apis/returning-sentinel-api-key.md)
- [Returning map API Key](https://guardian.hedera.com/guardian/map-related-apis/returning-map-api-key.md)
- [Returns Schema Tree](https://guardian.hedera.com/guardian/global-indexer/indexer-apis/returns-schema-tree.md)
- [Returns Map API Key](https://guardian.hedera.com/guardian/standard-registry/schemas/system-schema-apis/returns-map-api-key.md)
- [Returns Policies](https://guardian.hedera.com/guardian/global-indexer/indexer-apis/returns-policies.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://guardian.hedera.com/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://guardian.hedera.com/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/guardian/map-related-apis/returning-sentinel-api-key.md`)
- Use `Accept: text/markdown` header for content negotiation