# Home

Sat-api is a STAC compliant web API for searching and serving satellite imagery metadata. Development Seed runs an instance of it for Landsat and Sentinel imagery hosted on AWS. You can access this instance at <https://sat-api.developmentseed.org>.

An older version of sat-api can be found on the [legacy branch](https://github.com/sat-utils/sat-api/tree/legacy) and is deployed at <https://api.developmentseed.org/satellites>.

This repo includes a number of npm packages that are used to create and populate an instance of sat-api. For the full list of packages go to: <https://www.npmjs.com/org/sat-utils>

## Table of Contents

* [Home](/sat-api/documentation/readme.md)
* [What is STAC?](/sat-api/documentation/stac.md)
* [Deployment](/sat-api/documentation/deploy.md)
* [API Docs](/sat-api/documentation/api.md)
* [Manage Elasticsearch](/sat-api/documentation/manage.md)
* [Changelog](https://github.com/sat-utils/sat-api/blob/sat-api-as-library/CHANGES.md)


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://sat-utils.gitbook.io/sat-api/documentation/readme.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.