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fund-agent-wallet

Skill

Fund a Circle agent wallet with USDC via the `circle` CLI. payments are gas-abstracted. users can pay with USDC only, no ETH required. Covers two top-level paths — fiat on-ramp (buy USDC with USD/credit card) and crypto transfer (send existing USDC to the wallet via QR or direct address). Also cover

0API Tools

Install

git clone https://github.com/circlefin/skills.git ~/.claude/skills/fund-agent-wallet

What is fund-agent-wallet?

Fund a Circle agent wallet with USDC via the `circle` CLI. payments are gas-abstracted. users can pay with USDC only, no ETH required. Covers two top-level paths — fiat on-ramp (buy USDC with USD/credit card) and crypto transfer (send existing USDC to the wallet via QR or direct address). Also covers Gateway deposits (eco vs direct sub-paths) for the Nanopayments balance used by paid services. Use when the user wants to add USDC to their agent wallet, top up after a low balance, deposit into Gateway, or pick the right funding method. Triggers on: fund agent wallet, add USDC, fiat on-ramp, Gateway deposit, eco deposit, direct deposit, top up wallet, withdraw USDC, nanopayments.

What this can do

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

Run shell commands

Declares Bash

~171 tokens of context used while enabled, before you invoke anything

All declared tools (1)
Bash

Documentation

README · ~9 min read

Overview

For an overview of the Circle CLI's full capability set — bridging, smart contract execution, x402 payment, and more — see the use-circle-cli master skill. This skill is the narrower funding flow.

Funding an agent wallet means putting USDC where the CLI can spend it. There are two balance pools to be aware of:

  • On-chain (vanilla x402) — USDC sitting at the wallet address on a specific chain. Each chain is separate. Used to pay endpoints whose accepts[] does not include GatewayWalletBatched. Settles in one block.
  • Nanopayments (powered by Gateway) — USDC held off-chain in your Circle Gateway balance, batched and settled for you across supported chains. Per source chain — no cross-chain pooling at payment time. Used to pay endpoints whose accepts[] includes GatewayWalletBatched. Settles in <500ms once the balance exists.

Gas note

Agent wallet payment flows are gas-abstracted — users can pay with USDC without pre-funding native gas.

This skill covers funding both pools. Pick the path with the shortest time-to-result and hide chain complexity from the user.

Prerequisites

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