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Documentation Index

Fetch the complete documentation index at: https://developers.circle.com/llms.txt

Use this file to discover all available pages before exploring further.

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What you can build

  • Embedded wallets: build flexible, secure, and scalable wallets into your application.
  • Gasless UX: give end users a gasless experience with Gas Station and Paymaster.
  • Smart contracts: create, deploy, and execute smart contracts through intuitive APIs.
  • Compliance operations: screen transactions and automate alerts.

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Compose your stack

Mix and match these building blocks based on who controls the keys, how you cover fees, and the level of automation you need.

Wallets: Dev-Controlled

Use APIs to create wallets, move funds, and manage policies on behalf of your users with instant scale.

Wallets: User-Controlled

Ship passkeys, social logins, and custom signing UIs so end users truly own their keys across devices.

Wallets: Modular

Plug in modules like permissions, recovery, or automation to ship custom smart-accounts.

Gas Station

Sponsor gas to create a gasless UX for end-users.

Paymaster

Let anyone pay gas directly in USDC through permissionless ERC-4337 paymasters.

Contracts

Deploy and operate smart contracts via audited templates, APIs, and monitoring.

Compliance Engine

Screen transactions, manage rules, and investigate alerts.

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Building something crosschain?

Wallets and contracts become more powerful when they connect across ecosystems. Use these primitives to move liquidity crosschain and expose a unified balance.
Use Arc App Kit for crosschain transfersArc App Kit’s Bridge and Unified Balance let you move USDC across blockchains without low-level protocol work. Both support multiple blockchains and wallet providers.

CCTP

Burn-and-mint native USDC between supported chains with guarantees.

Gateway

Give users a single USDC balance they can spend anywhere while Circle handles settlement.

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Dive deeper