![get-started-icon](https://nsure-documentation.s3.us-east-1.amazonaws.com/static/9TZayxN.png) ## Welcome to nSure.ai online documentation portal nSure.ai is a fraud protection platform that enables merchants to sell digital goods and services online, while protecting the transaction against fraud, just like any other product. nSure.ai evaluates transactions in real time and provides feedback to the merchant, recommending to either accept or reject the transaction with no manual review or delayed delivery of product. ## Introduction Learn about nSure.ai and its components.
[About nSure.ai](docs/introduction/4r2e20xnokjas-about-n-sure-ai)
[nSure.ai solution components](docs/introduction/3f4ttr2wx5z39-n-sure-ai-solution-components)
## nSure.ai SDKs The purpose of the SDK module is to provide nSure.ai with relevant data regarding the buyers’ activities, which help distinguish between fraudulent and legit behavior on the merchant’s website/app.
[nSure.ai SDK for Merchant Website](docs/nsure-ai-sdks/qf27u5jofqfgc-n-sure-ai-sdk-for-merchant-website)
[nSure.ai SDK for Merchant Mobile App](docs/nsure-ai-sdks/z3xi0jjoz3tzo-n-sure-ai-sdk-for-merchant-mobile-app)
## nSure.ai Server to server API documentation The server to server API provides nSure.ai with data based on the user's flow of events in a specific user's transaction life cycle. To access previous versions, select the relevant version from the drop down menu on the left-side menu.
[Server to Server API](docs/nsureai-open-api/tm3emswyhns77-server-to-server-api)
[How nSure.ai fits in a typical e-commerce transaction](docs/nsureai-open-api/5w51ek798xbj1-how-n-sure-ai-fits-in-a-typical-e-commerce-transaction)
#### nSure.ai Transaction Flows
* [postAuth Transaction Flow](docs/nsureai-open-api/jvohuucx6fcka-post-auth-transaction-flow)
* [preAuth Transaction Flow](docs/nsureai-open-api/sx1byyrg7phz3-pre-auth-transaction-flow)
* [PayPal Transaction Flow](docs/nsureai-open-api/4d8kg2bl4gica-pay-pal-transaction-flow)
* [3D Secure Transactions](docs/nsureai-open-api/s2oyyslpspfcd-3-d-secure-transactions)
* [postCapture Transaction Flow](docs/nsureai-open-api/wvzfbtuawc54t-post-capture-transaction-flow)
* [postSale Transaction Flow](docs/nsureai-open-api/fmne6ohh0ufdk-post-sale-transaction-flow)
[nSure.ai review](docs/nsureai-open-api/ymexeo5yyeucq-n-sure-ai-review)
[Fraud and dispute management](docs/nsureai-open-api/6bj3zw83h9qs1-fraud-and-dispute-management)
[Gifting and remittance](docs/nsureai-open-api/velxaw00iu9il-gifting-and-remittance)
[Server to Server API Endpoints](docs/nsureai-open-api/x80emmg5tu4fs-server-to-server-api-endpoints)
[Sandbox Response Simulation](docs/nsureai-open-api/mzs5n7rw4tx67-sandbox-response-simulation)
#### Webhook Integrations
* [Stripe Webhook Integration](docs/nsureai-open-api/a0yxq1pez1ejw-stripe-webhook-integration)
* [Adyen Webhook Integration](docs/nsureai-open-api/m3vdpfrj1p2be-adyen-webhook-integration)
* [Checkout.com Webhook Integration](docs/nsureai-open-api/h8wa6vdfeaj7l-checkout-com-webhook-integration)
* [Rapyd Webhook Integration](docs/nsureai-open-api/shkadzzf0wmmu-rapyd-webhook-integration)
* [Nuvei Webhook Integration](docs/nsureai-open-api/7mzm45za23hvw-nuvei-webhook-integration)
* [PayPal Webhook Integration](docs/nsureai-open-api/c3elapavuixs2-pay-pal-webhook-integration)
[Payment Method Token Parameters](docs/nsureai-open-api/o1am8azo4ydwh-payment-method-token-parameters)
## nSure.ai Server to Server API reference The API reference provides detailed information of the API endpoints and their parameters
[nSure.ai API reference](docs/nsureai-open-api/c9dbd971df4a1-n-sure-ai-server-to-server-api-reference)