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

# Payment Initiation


## API Docs

- Payment Initiation [Get Checkout Session](https://docs.crisscross.money/api-reference/collect/payments/payment-initiation/get-checkout-session.md)
- Payment Initiation [Create Checkout Session](https://docs.crisscross.money/api-reference/collect/payments/payment-initiation/create-checkout-session.md)
- Payment Initiation [Initiate Payment (Transaction)](https://docs.crisscross.money/api-reference/collect/payments/payment-initiation/initiate-transaction.md)
- Payment Initiation [Authorize a Payment (Transaction)](https://docs.crisscross.money/api-reference/collect/payments/payment-initiation/authorize-transaction.md)
- Payment Initiation [Create a Wallet Merchant Session](https://docs.crisscross.money/api-reference/collect/payments/payment-initiation/create-wallet-merchant-session.md)

## OpenAPI Specification

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