# DEVELOPER GUIDE

- [API overview](/developer-guide/api-overview.md)
- [How to request an API key](/developer-guide/api-overview/how-to-request-an-api-key.md): To access a higher limit for your API, simply apply for an API key by logging in to our dashboard.
- [How to use your API Key](/developer-guide/api-overview/how-to-use-your-api-key.md): To authenticate, include your API key in the request header as follows:
- [Deleting and Expiring API Keys](/developer-guide/api-overview/deleting-and-expiring-api-keys.md)
- [API Rate Limits](/developer-guide/api-overview/api-rate-limits.md)
- [Collection APIs](/developer-guide/collection-apis.md)
- [Dataset APIs](/developer-guide/dataset-apis.md)
- [Search and filter within dataset](/developer-guide/dataset-apis/search-and-filter-within-dataset.md)
- [Download dataset](/developer-guide/dataset-apis/download-dataset.md)
- [Get dataset metadata](/developer-guide/dataset-apis/get-dataset-metadata.md)
- [List all datasets](/developer-guide/dataset-apis/list-all-datasets.md)
- [Real Time APIs](/developer-guide/real-time-apis.md)