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

# Custom Fields

> API docs and guides for Tabs — billing, contracts, payments, revenue recognition, and integrations.


## API Docs

- Custom Fields [List custom fields v3](https://docs.tabs.com/api-reference/custom-fields/getCustomFields.md)
- Custom Fields [List custom fields](https://docs.tabs.com/api-reference/custom-fields/integrators-api-custom-fields-v-31-controller-get-custom-fields.md)

## OpenAPI Specification

The raw OpenAPI 3.1 specification for this API is available at:
- [OpenAPI JSON](https://docs.tabs.com/openapi.json)
- [OpenAPI YAML](https://docs.tabs.com/openapi.yaml)