pinion-fund

pinion-fund is a skill for Claude Code from chu2bard/pinion-os. It costs 31 tokens per session (539 once invoked), scanned A, original, MIT.

A paid tool that checks ETH and USDC balances for a Base blockchain address and explains how to fund it. Base is a network used for Ethereum-compatible transactions.

In plain words
What is it for?
Checking balances and getting instructions for sending ETH or USDC to a Base address. Each call costs $0.01 USDC.
Why use it?
It shows whether an address has the currency needed for transaction fees or paid service calls and explains the next funding steps.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: positional $N argument.

Part of the pinion-os plugin — 10 skills shipped together

Good fit Checking balances and getting instructions for sending ETH or USDC to a…

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/chu2bard/pinion-os/fund
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add chu2bard/pinion-os --skill fund
Clone the repo
git clone --depth 1 https://github.com/chu2bard/pinion-os

Made for: Claude Code.

Or install pinion-os, the plugin that ships this one along with the rest of its 10 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.

agentmods badge for pinion-fund

README.md
[![agentmods](https://agentmods.dev/badge/skills/chu2bard/pinion-os/fund.svg)](https://agentmods.dev/skills/chu2bard/pinion-os/fund)
Your own site
<a href="https://agentmods.dev/skills/chu2bard/pinion-os/fund"><img src="https://agentmods.dev/badge/skills/chu2bard/pinion-os/fund.svg" alt="Measured on agentmods" height="20"></a>
Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 539 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00031 $0.00539
Opus 5 $0.00015 $0.00269
Sonnet 5 $0.00006 $0.00108
Haiku 4.5 $0.00003 $0.00054

Measured 7d ago against content hash c4630423aa73, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

pinion-fund scanned grade A with 1 finding 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 7d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl https://pinionos.com/skill/fund/0x101Cd32b9bEEE93845Ead7Bc604a5F1873330acf
skills/fund/SKILL.md · 66 lines

What it actually says

Fund

Returns ETH and USDC balances for any Base address along with step-by-step funding instructions and minimum recommended amounts.

Endpoint

GET https://pinionos.com/skill/fund/:address

Price: $0.01 USDC per call (x402 on Base)

Parameters

Parameter Type Required Description
address string yes Ethereum address (0x, 40 hex chars)

Example Request

curl https://pinionos.com/skill/fund/0x101Cd32b9bEEE93845Ead7Bc604a5F1873330acf

The first request returns HTTP 402 with payment requirements. Sign a USDC TransferWithAuthorization (EIP-3009) and retry with the X-PAYMENT header.

Example Response

{
  "address": "0x101Cd32b9bEEE93845Ead7Bc604a5F1873330acf",
  "network": "base",
  "chainId": 8453,
  "balances": {
    "ETH": "0.001200",
    "USDC": "5.00"
  },
  "depositAddress": "0x101Cd32b9bEEE93845Ead7Bc604a5F1873330acf",
  "funding": {
    "steps": [
      "Buy ETH on any exchange (Coinbase, Binance, etc.)",
      "Withdraw ETH to the address above on the Base network",
      "Swap some ETH to USDC using the /trade skill or any DEX",
      "ETH is needed for gas, USDC is needed for x402 payments"
    ],
    "minimumRecommended": {
      "ETH": "0.001 ETH (for gas fees)",
      "USDC": "1.00 USDC (for ~100 skill calls at $0.01 each)"
    },
    "bridgeUrl": "https://bridge.base.org"
  },
  "timestamp": "2026-02-16T12:00:00.000Z"
}

When to Use

  • Check if an agent wallet has enough funds to operate.
  • Get instructions for funding a new wallet.
  • Determine if bridging or swapping is needed before running other skills.
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.

  1. 7d ago First seen · 66 lines · 31 tokens per session scan A c4630423aa73

Subscribe to this mod's changes

pinion-fund is a skill published in the GitHub repository chu2bard/pinion-os (96 stars, last pushed 6mo ago), licensed MIT. It adds 31 tokens to every session and 539 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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