# PayKKa OpenAPI Documentation

## Docs
- [Overview](https://open-cb-paykka.apifox.cn/main-en/8551680m0.md): 
- [Interface rules](https://open-cb-paykka.apifox.cn/main-en/8551681m0.md): 
- [SDK](https://open-cb-paykka.apifox.cn/main-en/8551682m0.md): 
- [Communication security](https://open-cb-paykka.apifox.cn/main-en/83272421f0.md): 
- Communication security [Signature Generation & Verification](https://open-cb-paykka.apifox.cn/main-en/8551684m0.md): 
- [API list](https://open-cb-paykka.apifox.cn/main-en/83272410f0.md): 
- appendix [Open the collection account code table](https://open-cb-paykka.apifox.cn/main-en/8551685m0.md): 
- appendix [Product Category](https://open-cb-paykka.apifox.cn/main-en/8551686m0.md): 
- appendix [Business categories](https://open-cb-paykka.apifox.cn/main-en/8551687m0.md): 
- appendix [Province and city code](https://open-cb-paykka.apifox.cn/main-en/8551688m0.md): 
- appendix [Bank code](https://open-cb-paykka.apifox.cn/main-en/8551689m0.md): 
- appendix [industry](https://open-cb-paykka.apifox.cn/main-en/8551690m0.md): 
- appendix [new industry](https://open-cb-paykka.apifox.cn/main-en/8551691m0.md): 
- appendix [Country code](https://open-cb-paykka.apifox.cn/main-en/8551692m0.md): 

## API Docs
- API list > Merchant Onboarding [Apply for Onboarding](https://open-cb-paykka.apifox.cn/main-en/444711991e0.md): Create a merchant onboarding application and submit merchant information.
- API list > Merchant Onboarding [Update Onboarding Info](https://open-cb-paykka.apifox.cn/main-en/444711992e0.md): Update merchant onboarding information.
- API list > Merchant Onboarding [Query Onboarding Status](https://open-cb-paykka.apifox.cn/main-en/444711993e0.md): Query the merchant onboarding result and current application status.
- API list > Merchant Onboarding [Onboarding Notification](https://open-cb-paykka.apifox.cn/main-en/444711994e0.md): Webhook notification for merchant onboarding status updates and final result.
- API list > Risk Assessment [Submit Assessment](https://open-cb-paykka.apifox.cn/main-en/458611525e0.md): Create a merchant onboarding application and submit merchant information.
- API list > Risk Assessment [Update Assessment Info](https://open-cb-paykka.apifox.cn/main-en/458611526e0.md): Update merchant onboarding information.
- API list > Risk Assessment [Get Assessment Result](https://open-cb-paykka.apifox.cn/main-en/458611529e0.md): Query the merchant onboarding result and current application status.
- API list > Risk Assessment [Assessment Notification](https://open-cb-paykka.apifox.cn/main-en/458611530e0.md): Webhook notification for merchant onboarding status updates and final result.
- API list > VA [apply](https://open-cb-paykka.apifox.cn/main-en/444711995e0.md): Application for opening a collection account
- API list > VA [inquiry](https://open-cb-paykka.apifox.cn/main-en/444711996e0.md): Check the application results for opening a payment account
- API list > VA [notification](https://open-cb-paykka.apifox.cn/main-en/444711997e0.md): Payment account opening result (notification)
- API list > Remittance  [notification](https://open-cb-paykka.apifox.cn/main-en/444711970e0.md): type=INCOMING_REMITTANCE
- API list > Order [create](https://open-cb-paykka.apifox.cn/main-en/444711983e0.md): 
- API list > Order [update](https://open-cb-paykka.apifox.cn/main-en/444711984e0.md): request_id is the same as the contract order creation interface
- API list > Order [inquiry](https://open-cb-paykka.apifox.cn/main-en/444711985e0.md): request_id is the same as the contract order creation interface
- API list > Order [supplement](https://open-cb-paykka.apifox.cn/main-en/444711986e0.md): request_id is the same as the contract order creation interface
- API list > Tradesettle [apply](https://open-cb-paykka.apifox.cn/main-en/444711987e0.md): You can apply when the status of the receipt is [PENDING_RELATE|CHECK_REJECTED]
- API list > Tradesettle [inquiry](https://open-cb-paykka.apifox.cn/main-en/444711988e0.md): 
- API list > Tradesettle [notification](https://open-cb-paykka.apifox.cn/main-en/444711989e0.md): Payment entry result (notification)
- API list > Balance [inquiry](https://open-cb-paykka.apifox.cn/main-en/444711990e0.md): If the account currency is not passed, all currencies will be returned.
- API list > Payee [create](https://open-cb-paykka.apifox.cn/main-en/444711971e0.md): Payee creation
- API list > Payee [update](https://open-cb-paykka.apifox.cn/main-en/444711972e0.md): Payee modification
- API list > Payee [inquiry](https://open-cb-paykka.apifox.cn/main-en/444711973e0.md): Check payee status
- API list > Payee [notification](https://open-cb-paykka.apifox.cn/main-en/444711974e0.md): Payee creation result (notification)
- API list > Forex [pre-order](https://open-cb-paykka.apifox.cn/main-en/444711975e0.md): Only one amount is allowed for selling and buying amounts.
- API list > Forex [confirm](https://open-cb-paykka.apifox.cn/main-en/444711976e0.md): 
- API list > Forex [inquiry](https://open-cb-paykka.apifox.cn/main-en/444711977e0.md): 
- API list > Forex [notification](https://open-cb-paykka.apifox.cn/main-en/444711978e0.md): 
- API list > Payment [apply](https://open-cb-paykka.apifox.cn/main-en/444711979e0.md): Only payments in the same currency are supported: the payment currency and the payee currency must be the same
- API list > Payment [inquiry](https://open-cb-paykka.apifox.cn/main-en/444711980e0.md): Payment/Withdrawal Confirmation Result Status Inquiry
- API list > Payment [notification](https://open-cb-paykka.apifox.cn/main-en/444711981e0.md): Payment result notification
- API list > file service [upload](https://open-cb-paykka.apifox.cn/main-en/444711982e0.md):