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.
npx skills add chu2bard/pinion-os --skill pricegit clone --depth 1 https://github.com/chu2bard/pinion-osWrote 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.
[](https://agentmods.dev/skills/chu2bard/pinion-os/price)<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.
<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>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 | $0.00034 | $0.00512 |
| Opus 5.5 | $0.00014 | $0.00205 |
| Sonnet 5.5 | $0.00007 | $0.00102 |
| Haiku 4.5 | $0.00003 | $0.00051 |
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 1mo 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 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.
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.
- 1mo ago First seen · 69 lines · 34 tokens per session scan A 0c2686088465
pinion-price is a skill published in the GitHub repository chu2bard/pinion-os (97 stars, last pushed 8mo ago), licensed MIT. It adds 34 tokens to every session and 512 once invoked, about $0.0001 per session on Opus 5.5. 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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