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

# OCT


## API Docs

- OCT [Create Create Card Payments Request](https://developers.upwardli.com/api-access/api-reference/payments/oct/create-create-card-payments-request.md)
- OCT [List Card Payments Responses](https://developers.upwardli.com/api-access/api-reference/payments/oct/list-card-payments-responses.md)
- OCT [Retrieve Card Payments Response](https://developers.upwardli.com/api-access/api-reference/payments/oct/retrieve-card-payments-response.md)

## OpenAPI Specification

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