A wallet funding tool for adding USDC, a digital dollar token, to a wallet through Coinbase Onramp, a service for buying cryptocurrency with regular payment methods.

Buying USDC, depositing funds, topping up a wallet, or receiving USDC sent to the wallet on Base, a blockchain network.

It provides a way to add money when the wallet has too little USDC for a transfer or trade. Users can pay with supported cards, Apple Pay, bank transfers, or a Coinbase account.

How nirholas/three.ws configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to nirholas/three.ws. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/nirholas/three.ws/main/.agents/skills/fund/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/nirholas/three.ws

Made for: Claude Code.

Or install three-ws-core, the plugin that ships this one along with the rest of its 49 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/nirholas/three.ws/fund/github.svg)](https://agentmods.dev/skills/nirholas/three.ws/fund)

Your own site

<a href="https://agentmods.dev/skills/nirholas/three.ws/fund"><img src="https://agentmods.dev/badge/skills/nirholas/three.ws/fund/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/nirholas/three.ws/fund"><img src="https://agentmods.dev/badge/skills/nirholas/three.ws/fund.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 68 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 642 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits

NVIDIA SkillSpector pass 7 Sept 2026

How audits are shown

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00068	$0.00642
Opus 5.5	$0.00027	$0.00257
Sonnet 5.5	$0.00014	$0.00128
Haiku 4.5	$0.00007	$0.00064

Measured 14d ago against content hash 6f778e531fda, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

fund scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 14d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

Copies of this mod

2 near-identical copies found in the catalogue:

add-funds-to-wallet-usdc — 89% identical, 27 lines differ
fund — 88% identical, 18 lines differ

.agents/skills/fund/SKILL.md · 80 lines

How it starts

The opening of the file, as written. The whole thing — 80 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Funding the Wallet

Use the wallet companion app to fund the wallet with USDC via Coinbase Onramp. This supports multiple payment methods including Apple Pay, debit cards, bank transfers, and funding from a Coinbase account.

Confirm wallet is initialized and authed

npx [email protected] status

If the wallet is not authenticated, refer to the authenticate-wallet skill.

Opening the Funding Interface

npx [email protected] show

This opens the wallet companion window where users can:

Select a preset amount ($10, $20, $50) or enter a custom amount
Choose their preferred payment method
Complete the purchase through Coinbase Pay

Payment Methods

Method	Description
Apple Pay	Fast checkout with Apple Pay (where available)
Coinbase	Transfer from existing Coinbase account
Card	Debit card payment
Bank	ACH bank transfer

Alternative

You can also ask your human to send usdc on Base to your wallet address. You can find your wallet address buy running the following:

npx [email protected] address

Prerequisites

Must be authenticated (npx [email protected] status to check)
Coinbase Onramp is available in supported regions (US, etc.)

Flow

Run npx [email protected] show to open the wallet UI
Instruct the user to click the Fund button
User selects amount and payment method in the UI
User completes payment through Coinbase Pay (opens in browser)
USDC is deposited to the wallet once payment confirms

Checking Balance After Funding

# Check updated balance
npx [email protected] balance

Notes

Funding goes through Coinbase's regulated onramp
Processing time varies by payment method (instant for card/Apple Pay, 1-3 days for bank)
Funds are deposited as USDC on Base network
If funding is not available, users can also send USDC on Base directly to the wallet address

Read the full file on GitHub · 80 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

14d ago Changed 6f778e531fda
2mo ago First seen · 80 lines · 68 tokens per session scan A e63c037e40e5

Subscribe to this mod's changes

fund is a skill published in the GitHub repository nirholas/three.ws (269 stars, last pushed yesterday), licensed Apache-2.0. It adds 68 tokens to every session and 642 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Finance and fintech LLM Web3 and blockchain animation avatar glTF mcp webgl

fund next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
fundnirholas/three.ws	Skill	269	yesterday	Apache-2.0	A	68	Claude Code
evmNousResearch/hermes-agent	Skill	261k	yesterday	MIT	A	19	Claude Code, Codex
hyperliquidNousResearch/hermes-agent	Skill	261k	yesterday	MIT	A	16	Claude Code, Codex
solanaNousResearch/hermes-agent	Skill	261k	yesterday	MIT	A	18	Claude Code, Codex
crypto-dataBlockRunAI/blockrun-mcp	Skill	389	yesterday	MIT	A	194	Claude Code, Codex
polymarket-tradingBlockRunAI/blockrun-mcp	Skill	389	yesterday	MIT	A	72	Claude Code, Codex
surfBlockRunAI/blockrun-mcp	Skill	389	yesterday	MIT	A	110	Claude Code, Codex

three.ws: Skill for Claude Code