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

# Card BI Ns


## API Docs

- Card BI Ns [List available card BINs](https://docs.alphax.asia/api-reference/card-api/card-bi-ns/list-card-bins.md)

## OpenAPI Specification

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