> This page is for version 2022-09-01.
> For other versions, use one of these documentation indexes:
> - 2026-09-29 (default): https://docs.withpersona.com/2026-09-29/llms.txt
> - 2025-12-08: https://docs.withpersona.com/2025-12-08/llms.txt
> - 2025-10-27: https://docs.withpersona.com/2025-10-27/llms.txt
> - 2023-01-05: https://docs.withpersona.com/2023-01-05/llms.txt
> - 2022-09-01: https://docs.withpersona.com/2022-09-01/llms.txt
> - 2021-07-05: https://docs.withpersona.com/2021-07-05/llms.txt
> - 2021-05-14: https://docs.withpersona.com/2021-05-14/llms.txt
> - 2020-05-18: https://docs.withpersona.com/2020-05-18/llms.txt

> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.withpersona.com/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.withpersona.com/_mcp/server.

## API version: v2021-08-18

### Documents

* 💥 **Format of Generic Document responses**: Generic Document responses no longer include the `extraction-results` field. Use `extraction-responses` instead.

### Inquiries

* 💥 **Format of Inquiry Session responses**: Inquiry Session responses no longer include the `browser-fingerprint` field. You can now find this value in the new `device` field under the top-level `relationships` field of a serialized Inquiry Session.