--- updatedAt: 2026-07-24T14:14:00.000Z agentTools: projectIndex: https://docs.payu.in/llms.txt --- # APIs used in Integration Use these APIs to authorize, capture, cancel, and track card or UPI pre-authorized payments. ### Authorize, capture, or cancel payment | Use case → Reference | `command` / primary value | Description | | ---------------------------------------------------------------------------------------- | --------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | [Pre-Authorize Payment API – PayU Hosted](https://docs.payu.in/reference/pre_authorize_payment) | `_payment` with `pre_authorize=1` | Hold card funds without capturing them on PayU Hosted Checkout. | | [Pre-Authorize Payment API – Merchant Hosted](https://docs.payu.in/reference/pre_authorize_payment_merchant_hosted) | `_payment` with `pre_authorize=1` | Hold card funds without capturing them on merchant-hosted checkout. | | [Capture a Pre-Authorized Payment API](https://docs.payu.in/reference/capture_a_payment) | `capture_transaction` | Capture all or part of the held funds after authorization. | | [Cancel a Pre-Authorized Transaction API](https://docs.payu.in/reference/cancel-a-pre-authorized-transaction) | `cancel_transaction` | Cancel an authorization and release held funds. **Used in:** [Cancel a Pre-Authorized Payment](https://docs.payu.in/docs/cancel-a-pre-authorized-payment) and the card and UPI pre-authorization guides. | ### Verify the payment | Use case → Reference | `command` / primary value | Description | | -------------------------------------------- | ------------------------- | ------------------------------------------------------------------------------------------------- | | [Verify Payment API](https://docs.payu.in/reference/verify_payment_api) | `verify_payment` | Check transaction status; an `unmappedstatus` value of `auth` indicates successful authorization. | ### Check action status | Use case → Reference | `command` / primary value | Description | | -------------------------------------------------------------------------------------- | ------------------------- | ------------------------------------------------------------------------------ | | [Check Action Status API with Request ID](https://docs.payu.in/reference/check_action_status_api_with_request_id) | `check_action_status` | Check the status of authorization, capture, or refund requests queued at PayU. | ### UPI one-time mandates | Use case → Reference | `command` / primary value | Description | | ---------------------------------------------------------------------------------------------------------- | ------------------------- | ------------------------------------------------------------------------------ | | [UPI One-Time Mandate API – PayU Hosted](https://docs.payu.in/reference/upi-one-time-mandate-transaction-api-payu-hosted) | `_payment` | Initiate a UPI one-time mandate pre-authorization on PayU Hosted Checkout. | | [UPI One-Time Mandate API – Merchant Hosted](https://docs.payu.in/reference/_payment-upi-one-time-mandate-transaction-api) | `_payment` | Initiate a UPI one-time mandate pre-authorization on merchant-hosted checkout. | | [UPI OTM Status Check API](https://docs.payu.in/reference/upi-otm-status-check-api) | OTM status endpoint | Check the status of a UPI one-time mandate transaction. | | [Validate VPA API](https://docs.payu.in/reference/validate_vpa_api) | `validateVpa` | Validate the customer's UPI VPA before initiating a UPI Collect mandate. | | [UPI Reserve Pay One-Time Mandate – PayU Hosted](https://docs.payu.in/reference/upi-reserve-pay-one-time-mandate-payu-hosted) | `_payment` | Pre-authorize a UPI Reserve Pay transaction on PayU Hosted Checkout. | | [UPI Reserve Pay One-Time Mandate – Merchant Hosted](https://docs.payu.in/reference/upi-reserve-pay-one-time-mandate-merchant-hosted) | `_payment` | Pre-authorize a UPI Reserve Pay transaction on merchant-hosted checkout. |