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The FAC API shares public data from submitted audit reports. The FAC API runs on PostgREST and supports its built-in query operations.

Migrating from Census-provided data

The FAC API endpoints mimic the pipe-delimited CSV files historically provided by Census. This means we export a similar set of tables (e.g. general as opposed to gen) with similar column titles. There are, however, some differences between GSA-provided and Census-provided data. We will provide more detailed migration guidance in the coming months.

Interacting with the API

To interact with the FAC API, you will need an API key from To get a API key, fill out the API key signup form. This is free and requires a valid email address. When you receive your API key, treat it like any other credential:

Once you have your API key, you can begin exploring the API:

API limits and future updates

By default, each API key is limited to 1,000 requests per hour. This limit comes from, and you can read more about it in the developer manual.

As the API evolves, we will publish API updates and communicate guidance according to our change management process. You can read more on the API versioning page.

For more information on the FAC API and the information it provides, see our terms and conditions.