erc-8126-scan

erc-8126-scan is a skill for Claude Code, Codex from Cybercentry/erc-8126-scan-mcp. It costs 37 tokens per session (1,311 once invoked), scanned A, original, MIT.

A read-only lookup service for ERC-8004 agents and their Cybercentry security scores. ERC-8004 is an on-chain registry for identifying software agents, while ERC-8126 defines the verification reports.

In plain words
What is it for?
Searching agents, viewing registration details and activity, and reading reports covering areas such as contracts, media, web applications, and wallet screening.
Why use it?
It lets you review an agent’s public identity and stored security checks before trusting it. It does not perform new checks or make blockchain changes, and some calls cost USDC.

Skill for Claude CodeCodex

Which agent this was written for is unclear — built for openclaw. Also seen: positional $N argument; built for openclaw.

Good fit Searching agents, viewing registration details and activity, and reading reports covering areas such as contracts, media, web applications, and wallet screening.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/cybercentry/erc-8126-scan-mcp/erc-8126-scan
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 Cybercentry/erc-8126-scan-mcp --skill erc-8126-scan
Clone the repo
git clone --depth 1 https://github.com/Cybercentry/erc-8126-scan-mcp

Made for: Claude Code, Codex.

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 erc-8126-scan

README.md
[![agentmods](https://agentmods.dev/badge/skills/cybercentry/erc-8126-scan-mcp/erc-8126-scan/github.svg)](https://agentmods.dev/skills/cybercentry/erc-8126-scan-mcp/erc-8126-scan)
Your own site
<a href="https://agentmods.dev/skills/cybercentry/erc-8126-scan-mcp/erc-8126-scan"><img src="https://agentmods.dev/badge/skills/cybercentry/erc-8126-scan-mcp/erc-8126-scan/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 erc-8126-scan

Your own site · 80×15
<a href="https://agentmods.dev/skills/cybercentry/erc-8126-scan-mcp/erc-8126-scan"><img src="https://agentmods.dev/badge/skills/cybercentry/erc-8126-scan-mcp/erc-8126-scan.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 37 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,311 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.
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 $0.00037 $0.01311
Opus 5.5 $0.00015 $0.00524
Sonnet 5.5 $0.00007 $0.00262
Haiku 4.5 $0.00004 $0.00131

Measured 2mo ago against content hash 47beed70582f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

erc-8126-scan 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 2mo 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.

skills/erc-8126-scan/SKILL.md · 118 lines

How it starts

The opening of the file, as written. The whole thing — 118 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ERC-8126 Scan

Description

A searchable index of every agent minted in the ERC-8004 Identity Registry — 378,000+ and growing — each carrying Cybercentry verification results across five dimensions: token contract, staking contract source, media provenance, web application, and wallet sanctions screening.

Use this to check another agent before interacting with it: who registered it, whether anything about it has been verified, and what was found.

The verification interface these results implement is specified in ERC-8126: AI Agent Verification (Final), co-authored by the maintainers. The agents themselves are registered under ERC-8004: Trustless Agents, whose on-chain Identity Registry is the source this index syncs from.

This server serves results already computed and stored. It does not run verifications and cannot mint, write on-chain, or spend credits. All four tools are read-only.

Privacy notice: queries name agents, wallets and UUIDs already public on chain. No private data is submitted.

Payment notice: tools cost USDC per call over x402 — $0.001 for search_agents and get_agent, $0.002 for get_agent_activity, $0.05 for get_agent_report. An erc8126_ API key is the alternative, drawing on a plan quota instead. Listing the tools is free either way.

Instructions

The server is remote, so there is nothing to install:

  • URL: https://erc8126scan.ai/api/mcp
  • Transport: streamable-http
  • Registry name: uk.co.cybercentry/erc-8126-scan

In OpenClaw: openclaw mcp add erc-8126-scan --url https://erc8126scan.ai/api/mcp --transport streamable-http. In Claude: Settings, Connectors, Add custom connector, paste the URL. Other MCP clients: add a remote server at the same URL.

Payment is per call in USDC over x402, on Base or Solana — no account and no key needed. Clients that speak x402 handle this automatically: an unpaid call comes back as a JSON-RPC error with code 402 carrying the price and requirements, and the client pays and retries. Alternatively pass Authorization: Bearer erc8126_... to draw on a subscription quota instead; keys come from https://erc8126scan.ai/my-api-keys.

Read the full file on GitHub · 118 lines

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. 2mo ago First seen · 118 lines · 37 tokens per session scan A 47beed70582f

Subscribe to this mod's changes

erc-8126-scan is a skill published in the GitHub repository Cybercentry/erc-8126-scan-mcp (0 stars, last pushed 2mo ago), licensed MIT. It adds 37 tokens to every session and 1,311 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-08-31.

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