pinion-price

pinion-price is a skill for Claude Code from chu2bard/pinion-os. It costs 34 tokens per session (512 once invoked), scanned A, original, MIT.

A paid service that returns the current United States dollar price, 24-hour change, and liquidity for a token on the Base blockchain network. It accepts supported token symbols or Base contract addresses and uses Birdeye with CoinGecko as a fallback.

In plain words
What is it for?
Use it to check the current price, daily change, and liquidity of ETH, USDC, WETH, DAI, USDT, CBETH, or another Base token address.
Why use it?
It provides recent token-market data through one endpoint, while making the payment requirement and data source explicit.

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 Use it to check the current price, daily change, and liquidity of ETH, USDC, WETH, DAI, USDT, CBETH, or another Base token address.

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

README.md
[![agentmods](https://agentmods.dev/badge/skills/chu2bard/pinion-os/price/github.svg)](https://agentmods.dev/skills/chu2bard/pinion-os/price)
Your own site
<a href="https://agentmods.dev/skills/chu2bard/pinion-os/price"><img src="https://agentmods.dev/badge/skills/chu2bard/pinion-os/price/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.

agentmods 80×15 button for pinion-price

Your own site · 80×15
<a href="https://agentmods.dev/skills/chu2bard/pinion-os/price"><img src="https://agentmods.dev/badge/skills/chu2bard/pinion-os/price.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 34 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 512 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 $0.00034 $0.00512
Opus 5 $0.00017 $0.00256
Sonnet 5 $0.00007 $0.00102
Haiku 4.5 $0.00003 $0.00051

Measured 9d ago against content hash 0c2686088465, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

pinion-price 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 9d 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/price/ETH
skills/price/SKILL.md · 69 lines

What it actually says

Token Price

Returns the current USD price, 24h change, and liquidity for a token on Base.

Endpoint

GET https://pinionos.com/skill/price/:token

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

Parameters

Parameter Type Required Description
token string yes Token symbol (ETH, USDC, WETH, DAI, USDT, CBETH) or any Base contract address (0x...)

Example Request (by symbol)

curl https://pinionos.com/skill/price/ETH

Example Request (by contract address)

curl https://pinionos.com/skill/price/0x4200000000000000000000000000000000000006

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

Example Response

{
  "token": "ETH",
  "network": "base",
  "priceUSD": 2650.42,
  "change24h": "-1.23%",
  "liquidity": 10854103.38,
  "source": "birdeye",
  "timestamp": "2026-02-17T12:00:00.000Z"
}

Supported Tokens

By symbol: ETH, USDC, WETH, DAI, USDT, CBETH

By address: Any Base mainnet token contract address (0x + 40 hex chars).

Data Sources

  • Primary: Birdeye -- real-time DEX prices with liquidity data, 300 req/sec
  • Fallback: CoinGecko -- used if Birdeye is unavailable or BIRDEYE_API_KEY is not set

When to Use

  • Get the current price before constructing a trade.
  • Display token values in USD.
  • Monitor price movements for an agent's portfolio.
  • Look up the price of any Base token by contract address.
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. 9d ago First seen · 69 lines · 34 tokens per session scan A 0c2686088465

Subscribe to this mod's changes

pinion-price is a skill published in the GitHub repository chu2bard/pinion-os (96 stars, last pushed 6mo ago), licensed MIT. It adds 34 tokens to every session and 512 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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