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

# CardPay Agent

## Docs

- [Introduction](https://docs.mercoa.com/virtual-card-agent/introduction.md)
- [How it Works](https://docs.mercoa.com/virtual-card-agent/how-it-works.md)
- [Integrating your BillPay / AP](https://docs.mercoa.com/virtual-card-agent/integrating-with-your-billpay.md)
- [Overview](https://docs.mercoa.com/virtual-card-agent/validate-card-acceptance/validate-card-acceptance.md)
- [Validation Workflow](https://docs.mercoa.com/virtual-card-agent/validate-card-acceptance/validation-workflow.md): Learn how the vendor card agent validates invoices and determines payment modalities
- [Overview](https://docs.mercoa.com/virtual-card-agent/process-card-payments/process-payment.md)
- [ACH Fallback](https://docs.mercoa.com/virtual-card-agent/process-card-payments/ach-fallback.md)
- [Stripe Issuing](https://docs.mercoa.com/virtual-card-agent/process-card-payments/stripe-issuing.md)
- [Lithic](https://docs.mercoa.com/virtual-card-agent/process-card-payments/lithic.md)
- [Marqeta](https://docs.mercoa.com/virtual-card-agent/process-card-payments/marqeta.md)

## API Docs

- API Reference > Validate [Find Validation Jobs](https://docs.mercoa.com/virtual-card-agent/validate/find.md)
- API Reference > Validate [Create Validation Job](https://docs.mercoa.com/virtual-card-agent/validate/create.md)
- API Reference > Validate [Get Validation Job](https://docs.mercoa.com/virtual-card-agent/validate/get.md)
- API Reference > Process [Find Process Jobs](https://docs.mercoa.com/virtual-card-agent/process/find.md)
- API Reference > Process [Create Process Job](https://docs.mercoa.com/virtual-card-agent/process/create.md)
- API Reference > Process [Get Process Job](https://docs.mercoa.com/virtual-card-agent/process/get.md)
- API Reference > Webhooks [Payment Gateway Validation Job Completed](https://docs.mercoa.com/virtual-card-agent/webhooks/payment-gateway-validation-job-completed.md)
- API Reference > Webhooks [Payment Gateway Process Job Completed](https://docs.mercoa.com/virtual-card-agent/webhooks/payment-gateway-process-job-completed.md)

## OpenAPI Specification

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