web3-data

web3-data is a skill for Claude Code from internet-court/internet-court-skill. It costs 220 tokens per session (2,201 once invoked), scanned A, original, no licence file.

A toolkit for retrieving blockchain data through Chainbase and other Web3 data services. It covers information such as token holders, wallet addresses, token prices, ENS names, transactions, and DeFi portfolios.

In plain words
What is it for?
Use it to investigate wallets, tokens, transactions, ENS domains, decentralized-finance holdings, and other blockchain analytics.
Why use it?
It helps answer on-chain research questions without manually querying different blockchain data sources.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the internet-court plugin — 94 skills shipped together

Good fit Use it to investigate wallets, tokens, transactions, ENS domains, decentralized-finance holdings, and other blockchain analytics.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/internet-court/internet-court-skill/web3-data
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 internet-court/internet-court-skill --skill web3-data
Clone the repo
git clone --depth 1 https://github.com/internet-court/internet-court-skill

Made for: Claude Code.

Or install internet-court, the plugin that ships this one along with the rest of its 94 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 web3-data

README.md
[![agentmods](https://agentmods.dev/badge/skills/internet-court/internet-court-skill/web3-data/github.svg)](https://agentmods.dev/skills/internet-court/internet-court-skill/web3-data)
Your own site
<a href="https://agentmods.dev/skills/internet-court/internet-court-skill/web3-data"><img src="https://agentmods.dev/badge/skills/internet-court/internet-court-skill/web3-data/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 web3-data

Your own site · 80×15
<a href="https://agentmods.dev/skills/internet-court/internet-court-skill/web3-data"><img src="https://agentmods.dev/badge/skills/internet-court/internet-court-skill/web3-data.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 220 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,201 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 warn 7 Sept 2026
SkillSpector: 2 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium MCP Rug Pull · line 24
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium Data Exfiltration · line 136
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
How audits are shown
Origin unknown 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 $0.00220 $0.02201
Opus 5 $0.00110 $0.01100
Sonnet 5 $0.00044 $0.00440
Haiku 4.5 $0.00022 $0.00220

Measured 11d ago against content hash 98eadfb1b4db, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

web3-data 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 11d 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.

vendored/chainbase/web3-data/SKILL.md · 196 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Files

What ships with it

7 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 11d ago First seen · 196 lines · 220 tokens per session scan A 98eadfb1b4db

Subscribe to this mod's changes

web3-data is a skill published in the GitHub repository internet-court/internet-court-skill (5,530 stars, last pushed 22d ago), with no licence file. It adds 220 tokens to every session and 2,201 once invoked, about $0.0011 per session on Opus 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.

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