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use-usdc

Skill

USDC is Circle's stablecoin deployed across multiple blockchain ecosystems including EVM chains (Ethereum, Base, Arbitrum, Polygon, Arc) and Solana. Use this skill to check balances, send transfers, approve spending, and verify transactions. Triggers on: send USDC, approve USDC, USDC allowance, USDC

0Automation

Install

git clone https://github.com/circlefin/skills.git ~/.claude/skills/use-usdc

What is use-usdc?

USDC is Circle's stablecoin deployed across multiple blockchain ecosystems including EVM chains (Ethereum, Base, Arbitrum, Polygon, Arc) and Solana. Use this skill to check balances, send transfers, approve spending, and verify transactions. Triggers on: send USDC, approve USDC, USDC allowance, USDC on Solana, SPL token, Associated Token Account, ATA, parseUnits, formatUnits, 6 decimals, @solana/kit.

What this can do

Capabilities declared in this component's own frontmatter — not inferred.

Inherit all session tools

Declares no tool restrictions — inherits every session tool

~101 tokens of context used while enabled, before you invoke anything

Documentation

README · ~5 min read

Overview

USDC is Circle's stablecoin deployed across multiple blockchain ecosystems. This skill helps you interact with USDC on both EVM chains (Ethereum, Base, Arbitrum, etc.) and Solana. It covers balance checks, transfers, approvals, and transfer verification.

Prerequisites / Setup

Determine Ecosystem

First, identify which ecosystem the user is working with:

  • EVM: User has an Ethereum-style address (0x...) or mentions Ethereum, Base, Arbitrum, Polygon, etc.
  • Solana: User has a base58 address or mentions Solana, Devnet, Phantom, Solflare, etc.
  • Unclear: Ask which ecosystem before proceeding.

Dependencies

EVM:

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