# UR Developer Docs ## Docs - [Welcome](https://docs.ur.app/readme.md) - [What is UR?](https://docs.ur.app/welcome/what-is-ur.md): UR is the financial infrastructure for the open economy. The UR Platform is the account layer that wallets, developers, and financial platforms build on. - [Partner integration flow concepts](https://docs.ur.app/welcome/partner-integration-flow-concepts.md): Partner-facing concept overview. For API references and technical integration details, see docs.ur.app. - [Quickstart](https://docs.ur.app/getting-started/quickstart.md): Get API credentials and start integrating with UR in minutes. - [Choose your integration options](https://docs.ur.app/getting-started/integration-guide.md): Integrating with UR comes down to three independent decisions. Pick one option from each. - [What UR configures for you](https://docs.ur.app/getting-started/what-ur-configures.md): The settings UR provisions for you out of band, and which ones you can read back through an API. - [Sandbox environment](https://docs.ur.app/getting-started/sandbox-environment.md): The sandbox is an isolated environment for testing and development, without affecting production. - [API authentication](https://docs.ur.app/getting-started/api-authentication.md): How authentication works when integrating with UR APIs. - [Supported regions](https://docs.ur.app/getting-started/supported-regions.md): Countries and territories where UR accounts can be opened. - [Managed Custody Mode](https://docs.ur.app/integration-methods/managed-custody-mode.md): API-driven integration where UR manages fiat accounts and the partner manages crypto. - [External Wallet Access Mode](https://docs.ur.app/integration-methods/external-wallet-access-mode.md): Self-custody integration where users connect their own wallet and sign transactions directly. - [Delegated Mode](https://docs.ur.app/integration-methods/delegated-mode.md): API-driven integration where UR manages blockchain complexity on your behalf. - [Core banking overview](https://docs.ur.app/money-movement/core-banking-overview.md): An overview of money movement on UR. - [Deposits](https://docs.ur.app/money-movement/deposits.md): Fiat bank transfers and crypto-to-fiat offramp flows. - [Withdrawals](https://docs.ur.app/money-movement/withdrawals.md): Bank payouts and fiat-to-crypto onramp flows. - [FX conversion](https://docs.ur.app/money-movement/fx.md): Convert between currencies using atomic burn-and-mint operations. - [Transfer assets to partner platform](https://docs.ur.app/money-movement/transfer-assets-to-partner-platform.md): Move funds between user UR accounts and your platform. - [URID](https://docs.ur.app/concepts/urid.md): The on-chain identity that unlocks UR accounts. - [UR Account](https://docs.ur.app/concepts/ur-account.md): A hybrid financial account bridging the regulated financial system with on-chain settlement. - [Tokenized deposits](https://docs.ur.app/concepts/tokenized-deposits.md): 1:1 fiat-backed tokens on Mantle Network. - [On-chain ledger](https://docs.ur.app/concepts/on-chain-ledger.md): How UR records every transaction on Mantle Network, and why it matters for partners. - [The user lifecycle](https://docs.ur.app/concepts/overview-the-user-lifecycle.md): The URID account states and how a single KYC flow moves a user from Tourist to Live. - [KYC & compliance](https://docs.ur.app/concepts/kyc-and-compliance.md): What UR verifies during KYC, the data we collect, and the methods we use. - [Webhooks](https://docs.ur.app/developer-resources/webhook.md): How UR delivers business events to partner-registered HTTPS endpoints. Covers protocol, signatures, retries, idempotency, and the full event catalog. - [Build with AI coding agents](https://docs.ur.app/developer-resources/chat-and-build-with-ai.md): Use AI agents to query UR documentation and build integrations faster. ## Design - [Design for UR partners](https://docs.ur.app/design/readme.md): Design and UX guidance for partners building on UR. - [Introduction](https://docs.ur.app/design/user-experience/introduction.md): What UR provides, and what it is not. - [Messaging hierarchy](https://docs.ur.app/design/user-experience/messaging-hierarchy.md): What to lead with, what to support with, and what to avoid. - [Copy guidelines](https://docs.ur.app/design/user-experience/copy-guidelines.md): Recommended terminology for account opening and feature descriptions. - [Partner positioning of UR](https://docs.ur.app/design/user-experience/partner-positioning.md): How to introduce UR in banners and provide persistent account access. - [Visual hierarchy](https://docs.ur.app/design/user-experience/visual-hierarchy.md): How much screen prominence to give the account, actions, and card. - [Account creation](https://docs.ur.app/design/user-experience/account-creation.md): The authentication paths for creating a UR account, and the URID. - [KYC](https://docs.ur.app/design/user-experience/kyc.md): The three-part KYC flow and how to show the URID throughout it. - [Card activation](https://docs.ur.app/design/user-experience/card-activation.md): Currency authorization and card activation by integration mode. - [Card management](https://docs.ur.app/design/user-experience/card-management.md): The card hub for security and spending controls. - [Off-ramp](https://docs.ur.app/design/user-experience/off-ramp.md): Converting digital assets to fiat in the UR account. - [Bank transfer](https://docs.ur.app/design/user-experience/bank-transfer.md): Receiving funds from external bank accounts into the UR account. - [Co-branded debit card design](https://docs.ur.app/design/cards/co-branded-debit-card-design.md): Design and submit your custom co-branded Mastercard debit card artwork. ## API reference - [OpenAPIs](https://docs.ur.app/api-reference/readme.md): Base URLs, environments, and authentication for all UR API endpoints. - [Signature and verify](https://docs.ur.app/api-reference/signature-and-verify.md): Signing and verification rules for all API and webhook interactions. - [Development environment](https://docs.ur.app/api-reference/development-environment.md): The sandbox is an isolated environment for testing and development, without affecting production. - [Smart contracts](https://docs.ur.app/api-reference/smart-contracts.md): Contract addresses, source code, audit reports, and on-chain interaction reference. - [External Wallet Access Mode](https://docs.ur.app/api-reference/account/external-wallet-access-mode.md): Complete API reference for partners integrating via External Wallet Access. - [Delegated Contract Mode](https://docs.ur.app/api-reference/account/delegated-contract-mode.md): Complete API reference for partners integrating via Delegated Contract Mode. - [Managed Custody Mode](https://docs.ur.app/api-reference/account/managed-custody-mode.md): Core banking API reference for partners integrating via Managed Custody Mode. - [Crypto Backed Card](https://docs.ur.app/api-reference/cards/crypto-backed-card.md): Prefund operations, card authorization callback, and card webhooks for Crypto Backed mode. - [Managed Custody SDK KYC](https://docs.ur.app/api-reference/kyc-and-kyb/managed-custody-sdk-kyc.md): Onboard users with KYC completed on the user's device via the UR-issued Sumsub access token. - [Shared-token KYC reuse](https://docs.ur.app/api-reference/kyc-and-kyb/shared-token-kyc-reuse.md): Onboard users whose KYC your platform already completed in its own Sumsub tenant, by sharing the verified applicant with UR through a Sumsub share token. UR copies the applicant, validates the data, a --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on a page URL with the `ask` query parameter: ``` GET https://docs.ur.app/readme.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.