# Proof Developer Docs

## Docs

- [GET /widget/users/{id}/kyc-status](https://docs.proof.community/on-off-ramp/api-kyc-status.md): Check the identity-verification status of a user
- [Partner Webhook](https://docs.proof.community/on-off-ramp/api-partner-webhook.md): Server-to-server delivery of transaction events
- [POST /widget/session](https://docs.proof.community/on-off-ramp/api-session.md): Create a widget session and get parameters to launch the Proof widget
- [GET /widget/transactions/{id}](https://docs.proof.community/on-off-ramp/api-transaction.md): Get the current status of a transaction
- [WebSocket](https://docs.proof.community/on-off-ramp/api-websocket.md): Real-time transaction status updates via WebSocket
- [Integration Checklist](https://docs.proof.community/on-off-ramp/checklist.md): Everything to verify before going live
- [Error Handling](https://docs.proof.community/on-off-ramp/errors.md): Real error codes returned by the Proof API
- [Identity Verification](https://docs.proof.community/on-off-ramp/kyc.md): How identity verification works in the Proof widget
- [Mobile Integration](https://docs.proof.community/on-off-ramp/mobile.md): iOS and Android setup for camera permissions, Apple Pay, and Google Pay
- [Off-Ramp (Sell)](https://docs.proof.community/on-off-ramp/off-ramp.md): Let your users sell crypto and receive fiat to their card
- [Onboarding](https://docs.proof.community/on-off-ramp/onboarding.md): How to get access to the Proof On/Off Ramp integration
- [Overview](https://docs.proof.community/on-off-ramp/overview.md): How Proof On/Off Ramp works and what you need to integrate
- [Quickstart](https://docs.proof.community/on-off-ramp/quickstart.md): Get the widget running in your app in three steps
- [Transaction Status](https://docs.proof.community/on-off-ramp/transaction-status.md): Three ways to track on-ramp and off-ramp transactions
- [Widget Callbacks](https://docs.proof.community/on-off-ramp/widget-callbacks.md): JavaScript callbacks fired by the Proof widget inside the browser

## OpenAPI Specs

- [openapi](https://docs.proof.community/api-reference/openapi.json)