circle skills
by circlefin · Updated
Ship stablecoin apps faster. Best-practice skills for USDC payments, cross-chain transfers, wallets, and smart contracts — plus Circle's MCP server for real-time SDK and documentation guidance.
At a glance
circle-skills is an Agent Skill by circlefin in the Documents & Office category. In Claude Code it installs with `/plugin install circle-skills@claude-plugins-official` after adding the anthropics/claude-plugins-official marketplace; other assistants use its SKILL.md instructions as rules. Its source repository has 161 GitHub stars (as of Oct 28, 2026).
How to install circle skills in your AI client
Setup for Claude Code, Claude Desktop, Cursor, Codex, Windsurf, Cline and VS Code — copy-paste ready.
How to install circle skills in Claude CodeAnthropic's agentic CLI
Add the marketplace
claude/plugin marketplace add anthropics/claude-plugins-officialInstall the skill
claude/plugin install circle-skills@claude-plugins-officialUse it
These are slash commands for a Claude Code session, not your shell. Claude auto-invokes the skill when your request matches its description — or type its slash command if it exposes one.
How to install circle skills in Claude DesktopDesktop app (MCP config)
Clone the source
bashgit clone https://github.com/circlefin/skills.gitFind the skill
It lives in skills/plugins/circle — that folder contains the SKILL.md.
Add the SKILL.md to your Skills folder
Settings → Capabilities → Skills → add the folder containing SKILL.md. Claude picks it up automatically.
How to install circle skills in CursorAI-first code editor
Clone the source
bashgit clone https://github.com/circlefin/skills.gitFind the skill
It lives in skills/plugins/circle — that folder contains the SKILL.md.
Convert to a Cursor rule
Create .cursor/rules/circle-skills.mdc and paste the SKILL.md body. Set `alwaysApply` or a glob so the Agent loads it in context.
How to install circle skills in Codex CLIOpenAI coding agent
Clone the source
bashgit clone https://github.com/circlefin/skills.gitFind the skill
It lives in skills/plugins/circle — that folder contains the SKILL.md.
Reference in AGENTS.md
Add the skill's instructions (or a link) to AGENTS.md at your repo root — Codex reads it on every run.
How to install circle skills in WindsurfCodeium's agentic IDE
Clone the source
bashgit clone https://github.com/circlefin/skills.gitFind the skill
It lives in skills/plugins/circle — that folder contains the SKILL.md.
Add to your rules / context
Paste the SKILL.md instructions into this tool's custom rules or workspace instructions so the agent follows them.
How to install circle skills in ClineVS Code autonomous agent
Clone the source
bashgit clone https://github.com/circlefin/skills.gitFind the skill
It lives in skills/plugins/circle — that folder contains the SKILL.md.
Add to your rules / context
Paste the SKILL.md instructions into this tool's custom rules or workspace instructions so the agent follows them.
How to install circle skills in VS CodeCopilot / MCP support
Clone the source
bashgit clone https://github.com/circlefin/skills.gitFind the skill
It lives in skills/plugins/circle — that folder contains the SKILL.md.
Add to your rules / context
Paste the SKILL.md instructions into this tool's custom rules or workspace instructions so the agent follows them.
Documentation
Full READMECircle Skills Plugin
Skills for building Circle onchain applications with USDC payments, crosschain transfers, and wallet infrastructure.
Included
skills/: Circle onchain development skills (see below)mcp.json: MCP server config for Circle documentation
Skills
accept-agent-payments
Monetize an HTTP endpoint for agents with USDC pay-per-call payments. Defaults to Gateway Nanopayments, covers x402 seller integration, paid-call verification, and Agent Marketplace listing prep.
use-usdc
Interact with USDC on EVM chains and Solana. Use to check balances, send transfers, approve spending, and verify transactions. Supports ERC-20 patterns, SPL token operations, and Associated Token Accounts (ATAs) on Solana.
bridge-tokens
Build browser or server apps that bridge tokens between chains with Circle's App Kit or Bridge Kit. Bridges USDC across CCTP chains (EVM + Solana) and CCTPx registry aliases or token IDs on their supported EVM routes through the same kit.bridge() call. Includes browser-wallet and server adapters, UX patterns, progress tracking, destination chain linking, and transfer-speed (FAST/SLOW) handling.
use-arc
Build on Arc, Circle's blockchain where USDC is the native gas token. Covers chain configuration, smart contract deployment (Foundry/Hardhat), frontend integration (viem/wagmi), and bridging USDC to Arc via CCTP.
use-circle-wallets
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