# CashXChain Documentation > CashXChain is the infrastructure for the money of tomorrow — > the payments orchestration layer for modern businesses. > Built first for cross-border and B2B (the corridors banks > handle worst), designed to scale to every payment a modern > business sends or receives. > > The documentation covers the product, platform, API reference, > integration guides, security, compliance, and legal pages. Sandbox and production are fully separated environments with separate accounts, API keys, auth, web apps, and developer portals. There is no shared session or SSO between them. Both environments are self-serve sign-up; KYB and product enablement gate live payments in production, not registration. Auth uses /login and /register paths in both environments. Production: - API: https://api.cashxchain.com - Web app: https://app.cashxchain.com - Developer portal: https://dev.cashxchain.com - Sign up: https://auth.cashxchain.com/register - Sign in: https://auth.cashxchain.com/login Sandbox: - API: https://api.sandbox.cashxchain.com - Web app: https://app.sandbox.cashxchain.com - Developer portal: https://dev.sandbox.cashxchain.com - Sign up: https://auth.sandbox.cashxchain.com/register - Sign in: https://auth.sandbox.cashxchain.com/login Shared: - Documentation: https://docs.cashxchain.com - Status: https://status.cashxchain.com - Marketing: https://www.cashxchain.com - GitHub org: https://github.com/CashXChain Full concatenated documentation: https://docs.cashxchain.com/llms-full.txt ## Introduction - [How it works](https://docs.cashxchain.com/docs/introduction/how-it-works): Learn how CashXChain orchestrates fiat, stablecoin, partner rails, FX, and compliance metadata. - [Key features](https://docs.cashxchain.com/docs/introduction/key-features): Explore the core capabilities of CashXChain. - [Overview](https://docs.cashxchain.com/docs/introduction/overview): CashXChain is the payments infrastructure for the money of tomorrow. - [Roadmap](https://docs.cashxchain.com/docs/introduction/roadmap): Future product direction for CashXChain. ## Product - [Architecture](https://docs.cashxchain.com/docs/product/architecture): CashXChain architecture for payment orchestration, partner execution, and multi-rail settlement. - [Audit trail](https://docs.cashxchain.com/docs/product/audit-trail): Learn how CashXChain records payment, compliance, and operational events. - [FX and quotes](https://docs.cashxchain.com/docs/product/fx): Learn how CashXChain handles quote-driven currency conversion. - [Payments](https://docs.cashxchain.com/docs/product/payments): Understand CashXChain payment workflows, statuses, and operational controls. - [Pricing](https://docs.cashxchain.com/docs/product/pricing): Understand CashXChain pricing concepts, fees, and quote transparency. - [Rails](https://docs.cashxchain.com/docs/product/rails): How CashXChain moves value — direct bank transfer, stablecoin settlement, and partner networks across on-chain and off-chain infrastructure. - [Settlement](https://docs.cashxchain.com/docs/product/settlement): Understand how CashXChain models settlement across modern and traditional rails. - [Wallets and balances](https://docs.cashxchain.com/docs/product/wallets): Learn how CashXChain presents balances without exposing end users to crypto complexity. ## Platform - [Accounts](https://docs.cashxchain.com/docs/platform/accounts): Accounts represent businesses, platforms, entities, and sub-entities in CashXChain. - [API keys](https://docs.cashxchain.com/docs/platform/api-keys): Create, scope, rotate, and protect API keys. - [FX quotes](https://docs.cashxchain.com/docs/platform/fx-quotes): Platform resource model for FX quotes. - [Notifications](https://docs.cashxchain.com/docs/platform/notifications): Notifications and event delivery in CashXChain. - [Platform overview](https://docs.cashxchain.com/docs/platform/overview): Overview of CashXChain platform resources and workflows. - [Payments](https://docs.cashxchain.com/docs/platform/payments): Platform-level payment resource behavior and operational model. - [Statements](https://docs.cashxchain.com/docs/platform/statements): Statements and reconciliation exports. - [Wallets](https://docs.cashxchain.com/docs/platform/wallets): Learn how CashXChain presents balances without exposing end users to crypto complexity. - [Webhooks](https://docs.cashxchain.com/docs/platform/webhooks): Configure webhook endpoints and receive signed events. ## API - [Authentication](https://docs.cashxchain.com/docs/api/authentication): Authenticate API requests securely. - [Errors](https://docs.cashxchain.com/docs/api/errors): CashXChain API error structure and common error codes. - [FX API](https://docs.cashxchain.com/docs/api/fx): Request FX quotes and create conversions. - [Getting Started](https://docs.cashxchain.com/docs/api/getting-started): Make your first CashXChain API request. - [Payments API](https://docs.cashxchain.com/docs/api/payments): Create and manage payment instructions. - [Rate limits](https://docs.cashxchain.com/docs/api/rate-limits): CashXChain API rate limits and retry guidance. - [Sandbox vs production](https://docs.cashxchain.com/docs/api/sandbox-vs-production): Differences between test and live CashXChain environments. - [SDKs](https://docs.cashxchain.com/docs/api/sdks): SDK strategy and example usage for CashXChain integrations. - [Wallets API](https://docs.cashxchain.com/docs/api/wallets): Retrieve logical wallets, balances, and ledger entries. - [Webhooks API](https://docs.cashxchain.com/docs/api/webhooks): Configure webhook endpoints and receive signed events. ## Integration Guides - [Best practices](https://docs.cashxchain.com/docs/integration/best-practices): Recommended integration practices for production reliability. - [FX guide](https://docs.cashxchain.com/docs/integration/fx-guide): Implement quote-driven FX safely. - [Payments guide](https://docs.cashxchain.com/docs/integration/payments-guide): Build a robust payment integration. - [QA checklist](https://docs.cashxchain.com/docs/integration/qa-checklist): Pre-production checklist for CashXChain integrations. - [Quickstart](https://docs.cashxchain.com/docs/integration/quickstart): Integrate CashXChain in a few steps. - [Wallets guide](https://docs.cashxchain.com/docs/integration/wallets-guide): Integrate balances, wallets, and ledger entries. - [Webhooks guide](https://docs.cashxchain.com/docs/integration/webhooks-guide): Build a production-ready webhook receiver. ## Security - [Access control](https://docs.cashxchain.com/docs/security/access-control): Roles, permissions, API key scopes, and approval controls. - [Data isolation](https://docs.cashxchain.com/docs/security/data-isolation): How CashXChain separates customer data and environments. - [Vulnerability disclosure](https://docs.cashxchain.com/docs/security/disclosure): Responsible disclosure process for security researchers. - [Encryption](https://docs.cashxchain.com/docs/security/encryption): Encryption in transit, at rest, and key management expectations. - [Fraud prevention](https://docs.cashxchain.com/docs/security/fraud-prevention): Controls for payment fraud, account takeover, and suspicious activity. - [Security overview](https://docs.cashxchain.com/docs/security/overview): CashXChain security principles and controls. ## Compliance - [AML](https://docs.cashxchain.com/docs/compliance/aml): Anti-money-laundering concepts and payment monitoring. - [KYC and KYB](https://docs.cashxchain.com/docs/compliance/kyc-kyb): Business verification and customer due diligence in CashXChain. - [Licensing model](https://docs.cashxchain.com/docs/compliance/licensing): CashXChain regulatory positioning and partner allocation. - [Risk rating](https://docs.cashxchain.com/docs/compliance/risk-rating): How CashXChain uses risk tiers to guide payment controls. - [Screening](https://docs.cashxchain.com/docs/compliance/screening): Sanctions, PEP, adverse media, and counterparty screening concepts. - [Travel Rule](https://docs.cashxchain.com/docs/compliance/travel-rule): Travel Rule metadata and partner obligations. ## Use cases - [B2B cross-border payments](https://docs.cashxchain.com/docs/use-cases/b2b-cross-border): Use CashXChain for supplier, vendor, and international business payments. - [Marketplace payouts](https://docs.cashxchain.com/docs/use-cases/marketplace-payouts): Use CashXChain to pay sellers, contractors, creators, or merchants. - [Supply chain payments](https://docs.cashxchain.com/docs/use-cases/supply-chain): Use CashXChain to improve supplier settlement and working-capital operations. - [Treasury automation](https://docs.cashxchain.com/docs/use-cases/treasury-automation): Automate treasury transfers, FX, and liquidity operations with CashXChain. ## Legal - [Contact](https://docs.cashxchain.com/docs/legal/contact): Contact CashXChain for support, sales, legal, and security. - [Cookies](https://docs.cashxchain.com/docs/legal/cookies): Cookie and similar technology overview. - [Partners](https://docs.cashxchain.com/docs/legal/partners): How CashXChain works with regulated and infrastructure partners. - [Privacy](https://docs.cashxchain.com/docs/legal/privacy): Privacy overview for CashXChain documentation. - [Risk notice](https://docs.cashxchain.com/docs/legal/risk-notice): Important risks related to cross-border payments, FX, partners, and settlement. - [Terms](https://docs.cashxchain.com/docs/legal/terms): Public terms overview for CashXChain documentation. ## Reference - [Changelog](https://docs.cashxchain.com/docs/changelog): Product and documentation changelog.