pinion-tx

pinion-tx is a skill for Claude Code, Codex from chu2bard/pinion-os. It costs 26 tokens per session (366 once invoked), scanned A, original, MIT.

A service that explains a transaction on Base, a blockchain network compatible with Ethereum, when given its transaction hash. Each request costs $0.01 in USDC, a cryptocurrency, and uses Base's payment process.

In plain words
What is it for?
Use it to verify a Base transaction, inspect who sent or received funds, check whether it succeeded, or audit an agent's on-chain activity.
Why use it?
It turns a hard-to-read transaction identifier into details such as the sender, recipient, amount, gas used, status, block, and time.

Skill for Claude CodeCodex

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

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.

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

Made for: Claude Code, Codex.

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-tx

README.md
[![agentmods](https://agentmods.dev/badge/skills/chu2bard/pinion-os/tx.svg)](https://agentmods.dev/skills/chu2bard/pinion-os/tx)
Your own site
<a href="https://agentmods.dev/skills/chu2bard/pinion-os/tx"><img src="https://agentmods.dev/badge/skills/chu2bard/pinion-os/tx.svg" alt="Measured on agentmods" height="20"></a>
Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 366 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
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 $0.00026 $0.00366
Opus 5 $0.00013 $0.00183
Sonnet 5 $0.00005 $0.00073
Haiku 4.5 $0.00003 $0.00037

Measured 5d ago against content hash f743925c523a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

pinion-tx 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 5d 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/tx/0xabc123...
skills/tx/SKILL.md · 53 lines

What it actually says

Transaction Details

Returns decoded transaction data and receipt for any transaction on Base mainnet.

Endpoint

GET https://pinionos.com/skill/tx/:hash

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

Parameters

Parameter Type Required Description
hash string yes Transaction hash (0x, 64 hex chars)

Example Request

curl https://pinionos.com/skill/tx/0xabc123...

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

Example Response

{
  "hash": "0xabc123...",
  "network": "base",
  "from": "0x101C...",
  "to": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "value": "0.000000 ETH",
  "gasUsed": "52341",
  "status": "success",
  "blockNumber": 18442017,
  "timestamp": "2026-02-16T12:00:00.000Z"
}

When to Use

  • Verify a transaction went through (status, gas, block).
  • Decode sender, recipient and value for any Base tx.
  • Audit agent activity on-chain.
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. 5d ago First seen · 53 lines · 26 tokens per session scan A f743925c523a

Subscribe to this mod's changes

pinion-tx is a skill published in the GitHub repository chu2bard/pinion-os (96 stars, last pushed 6mo ago), licensed MIT. It adds 26 tokens to every session and 366 once invoked, about $0.0001 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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