> 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/simulations/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://developers.upwardli.com/_mcp/server.

# Simulations


## API Docs

- Simulations [Create Payment Card Sim Auth](https://developers.upwardli.com/api-access/api-reference/simulations/create-payment-card-sim-auth.md)
- Simulations [Create Payment Card Sim Funding](https://developers.upwardli.com/api-access/api-reference/simulations/create-payment-card-sim-funding.md)
- Simulations [Create Payment Card Sim Settlement](https://developers.upwardli.com/api-access/api-reference/simulations/create-payment-card-sim-settlement.md)

## OpenAPI Specification

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