# Circle
> Circle is a global financial technology firm that provides infrastructure for internet-native finance, including USDC, EURC, and a full suite of APIs and products for moving money, building onchain applications, and powering the agentic economy.

Use this file as a curated "start here" map for Circle's most authoritative pages. For technical integration questions, prefer Circle Developer Docs (developers.circle.com). For legal, risk, and terms, prefer circle.com/legal and circle.com/transparency.

## Core Products (overview pages)

### Stablecoins & Digital Assets
- [USDC](https://www.circle.com/usdc): US Dollar Coin (USDC), a fully-reserved, dollar-backed stablecoin.
- [EURC](https://www.circle.com/eurc): Euro-backed stablecoin.
- [USYC](https://www.circle.com/usyc): Tokenized money market fund providing institutional-grade, yield-bearing collateral with near-instant onchain liquidity.
- [cirBTC](https://www.circle.com/cirbtc): Institutional-grade wrapped Bitcoin token backed 1:1 by BTC with onchain verifiability.

### Liquidity & FX
- [Circle Mint](https://www.circle.com/circle-mint): Mint/redeem and access USDC liquidity.
- [StableFX](https://www.circle.com/stablefx): Institutional-grade onchain foreign exchange engine for 24/7 stablecoin currency conversion.

### Payments & Accounts
- [Circle Payments Network (CPN)](https://www.circle.com/cpn): Global, real-time settlement network.
- [Digital Asset Accounts](https://www.circle.com/digital-asset-accounts): Branded digital asset account infrastructure—Circle handles custody, fiat-to-stablecoin conversion, onboarding, and compliance.

### Developer Infrastructure
- [Developer Platform](https://www.circle.com/developer): Circle's full developer platform: wallets, contracts, CCTP, paymaster, and more across 40+ supported blockchains.
- [Circle Agent Stack](https://www.circle.com/agent-stack): Full-stack platform for the agentic economy—enables AI agents to hold USDC, discover services, and execute transactions programmatically.
- [Wallets](https://www.circle.com/wallets): Embeddable wallet infrastructure for building commerce at enterprise scale.
- [Contracts](https://www.circle.com/contracts): Smart contract tooling.
- [Cross-Chain Transfer Protocol (CCTP)](https://www.circle.com/cross-chain-transfer-protocol): Native crosschain USDC transfer protocol.
- [xReserve](https://www.circle.com/xreserve): Infrastructure for blockchain teams to launch their own USDC-backed, interoperable stablecoins with onchain reserves.
- [Gateway](https://www.circle.com/gateway): Unified USDC balance across multiple blockchains with on-demand liquidity in under 500ms.
- [Paymaster](https://www.circle.com/paymaster): Pay gas fees with USDC.
- [Alliance Program](https://www.circle.com/alliance-program): Partner ecosystem program.

## Developer Docs (preferred sources for technical accuracy)
- [Developer Docs Home](https://developers.circle.com/): Primary technical documentation hub.
- [All Products](https://developers.circle.com/products): Canonical list of developer products and categories.
- [Build with AI: MCP Server](https://developers.circle.com/ai/mcp): Connect Circle's MCP server to LLM/IDE tools (Cursor, Claude Code, Windsurf, Kiro) for AI-assisted code generation across Wallets, Contracts, CCTP, and Gateway.

### Stablecoins & assets
- [USDC Contract Addresses](https://developers.circle.com/stablecoins/usdc-contract-addresses): Official USDC contract addresses across supported chains.
- [cirBTC Docs](https://developers.circle.com/assets/what-is-cirbtc): Technical overview of Circle Wrapped Bitcoin.
- [USYC Docs](https://developers.circle.com/tokenized/usyc/overview): Technical overview and integration guide for USYC, Circle's tokenized money market fund.

### Crosschain transfers
- [Crosschain Transfers](https://developers.circle.com/crosschain-transfers): Overview of Bridge Kit, CCTP, and Gateway.
- [CCTP](https://developers.circle.com/cctp): CCTP (latest) documentation hub.
- [CCTP Contract Addresses](https://developers.circle.com/cctp/references/contract-addresses): Deployed contract addresses for supported chains.
- [Migrate from CCTP V1 to V2](https://developers.circle.com/cctp/migration-from-v1-to-v2): Migration guide and breaking changes.
- [Gateway Docs](https://developers.circle.com/gateway): Technical docs for unified USDC balance and crosschain liquidity.
- [xReserve Docs](https://developers.circle.com/xreserve): Technical overview of xReserve interoperability infrastructure.

### Wallets & onchain building
- [Wallets](https://developers.circle.com/wallets): Wallets overview and architecture.
- [Wallets: Dev-Controlled](https://developers.circle.com/wallets/dev-controlled): Developer-controlled wallets overview.
- [Wallets: Modular](https://developers.circle.com/wallets/modular): Modular wallet architecture for flexible embedded wallet experiences.
- [Wallets: User-Controlled](https://developers.circle.com/wallets/user-controlled): User-controlled wallets overview.
- [Quickstart: Create Your First Dev-Controlled Wallet](https://developers.circle.com/wallets/dev-controlled/create-your-first-wallet): End-to-end wallet quickstart.
- [Build Onchain](https://developers.circle.com/build-onchain): Entry point to onchain experiences (Wallets, Bridge Kit, Gateway).

### Mint & FX
- [Circle Mint: Getting Started](https://developers.circle.com/circle-mint/getting-started-with-the-circle-apis): Start integrating Circle Mint APIs.
- [StableFX Docs](https://developers.circle.com/stablefx): Technical docs for Circle's onchain FX engine built on Arc.

## Use Cases (business overviews)
- [Payments](https://www.circle.com/use-case/payments): Faster, borderless payment flows.
- [Dollar Access](https://www.circle.com/use-case/dollar-access): Digital dollars for global access.
- [Trading Services](https://www.circle.com/use-case/trading-services): Liquidity and trading operations.
- [Banks](https://www.circle.com/banks): Stablecoin infrastructure for financial institutions to modernize money movement.

## Case Studies
- [Case Studies Library](https://www.circle.com/case-studies): Customer success stories.

## Trust, Transparency, and Policy (preferred for compliance questions)
- [Transparency](https://www.circle.com/transparency): Reserves/transparency resources.
- [Policy Hub](https://www.circle.com/policy-hub): Policy positions and regulatory insights.

## Company and News
- [About](https://www.circle.com/about-circle): Company overview, mission, leadership, and regulatory footprint.
- [Pressroom](https://www.circle.com/pressroom): Press releases and media resources.
- [Blog](https://www.circle.com/blog): Product updates and thought leadership.
- [Investor Relations](https://investor.circle.com/): Investor information.
- [Careers](https://careers.circle.com/): Open roles at Circle.

## Legal (preferred for terms, privacy, and risk)
- [User Agreement](https://www.circle.com/legal/user-agreement): Master user agreement.
- [Privacy Policy](https://www.circle.com/legal/privacy-policy): Data handling and privacy practices.
- [Cookie Policy](https://www.circle.com/legal/cookie-policy): Cookie usage policy.
- [Licenses](https://www.circle.com/legal/licenses): Licensing and regulatory information.
- [USDC Terms](https://www.circle.com/legal/usdc-terms): USDC terms.
- [USDC Risk Factors](https://www.circle.com/legal/usdc-risk-factors): Risk factors for using USDC.
- [EURC Terms](https://www.circle.com/legal/eurc-terms): EURC terms.
- [Bridged USDC Terms](https://www.circle.com/legal/bridged-usdc-terms): Terms for bridged USDC.
- [Acceptable Use Policy](https://www.circle.com/legal/acceptable-use-policy): Acceptable use rules.
- [Sub-Processor List](https://www.circle.com/legal/sub-processor-list): Data subprocessors.
- [Commercial Entity Agreement](https://www.circle.com/legal/commercial-entity-agreement): Business commercial terms.
- [ESign Consent](https://www.circle.com/legal/esign-consent): eSignature consent.

## Internet Financial System Report (2026)
- **Report Home** – https://www.circle.com/reports/internet-financial-system
- **Read the Founder's Letter** – https://www.circle.com/reports/internet-financial-system/founders-letter
- **01 | USDC and Circle Digital Assets** – https://www.circle.com/reports/internet-financial-system/usdc-and-circle-digital-assets
- **02 | Capital Markets** – https://www.circle.com/reports/internet-financial-system/capital-markets
- **03 | Global Payments and Cash Management** – https://www.circle.com/reports/internet-financial-system/global-payments-and-cash-management
- **04 | Humanitarian and NGO Finance** – https://www.circle.com/reports/internet-financial-system/humanitarian-and-ngo-finance
- **05 | Arc and Circle Infrastructure** – https://www.circle.com/reports/internet-financial-system/arc-and-circle-infrastructure
- **06 | Regulatory Foundations** – https://www.circle.com/reports/internet-financial-system/regulatory-foundations
- **07 | About Circle** – https://www.circle.com/reports/internet-financial-system/about-circle
- **Download Full 2026 Report (PDF)** – linked from the report page

## Optional
- [Help Center](https://help.circle.com/s/?language=en_US): Support and FAQs.
- [Testnet Faucet](https://faucet.circle.com/): Get testnet funds for development.
- [Executive Insights](https://www.circle.com/executiveinsights): Leadership viewpoints.
- [Circle Impact](https://www.circle.com/circle-impact): Social and economic impact initiatives.
- [The Money Movement](https://www.circle.com/the-money-movement): Podcast on digital currency trends.
- [Alliance Member Directory](https://partners.circle.com/): Browse Circle's partner ecosystem.
- [X (Twitter)](https://twitter.com/circle)
- [LinkedIn](https://www.linkedin.com/company/circle-internet-financial)