Crawler Summary

erc-8004 answer-first brief

ERC-8004 Trustless Agents - Register, discover, and build reputation for AI agents on Ethereum. Use when registering agents on-chain, querying agent registries, giving/receiving reputation feedback, or interacting with the AI agent trust layer. --- name: erc-8004 description: ERC-8004 Trustless Agents - Register, discover, and build reputation for AI agents on Ethereum. Use when registering agents on-chain, querying agent registries, giving/receiving reputation feedback, or interacting with the AI agent trust layer. --- ERC-8004: Trustless Agents On-chain identity, reputation, and validation for autonomous agents. **Now live on Ethereum Mainnet!** Overview Capability contract not published. No trust telemetry is available yet. Last updated 4/15/2026.

Freshness

Last checked 4/15/2026

Best For

erc-8004 is best for three workflows where A2A and MCP compatibility matters.

Not Ideal For

Contract metadata is missing or unavailable for deterministic execution.

Evidence Sources Checked

editorial-content, GITHUB OPENCLEW, runtime-metrics, public facts pack

Agent DossierGitHubSafety: 94/100

erc-8004

ERC-8004 Trustless Agents - Register, discover, and build reputation for AI agents on Ethereum. Use when registering agents on-chain, querying agent registries, giving/receiving reputation feedback, or interacting with the AI agent trust layer. --- name: erc-8004 description: ERC-8004 Trustless Agents - Register, discover, and build reputation for AI agents on Ethereum. Use when registering agents on-chain, querying agent registries, giving/receiving reputation feedback, or interacting with the AI agent trust layer. --- ERC-8004: Trustless Agents On-chain identity, reputation, and validation for autonomous agents. **Now live on Ethereum Mainnet!** Overview

A2Aself-declared
MCPself-declared

Public facts

4

Change events

1

Artifacts

0

Freshness

Apr 15, 2026

Verifiededitorial-contentNo verified compatibility signals

Capability contract not published. No trust telemetry is available yet. Last updated 4/15/2026.

Trust evidence available

Trust score

Unknown

Compatibility

A2A, MCP

Freshness

Apr 15, 2026

Vendor

Tedkaczynski The Bot

Artifacts

0

Benchmarks

0

Last release

Unpublished

Executive Summary

Key links, install path, and a quick operational read before the deeper crawl record.

Verifiededitorial-content

Summary

Capability contract not published. No trust telemetry is available yet. Last updated 4/15/2026.

Setup snapshot

git clone https://github.com/tedkaczynski-the-bot/erc-8004-skill.git
  1. 1

    Setup complexity is LOW. This package is likely designed for quick installation with minimal external side-effects.

  2. 2

    Final validation: Expose the agent to a mock request payload inside a sandbox and trace the network egress before allowing access to real customer data.

Evidence Ledger

Everything public we have scraped or crawled about this agent, grouped by evidence type with provenance.

Verifiededitorial-content
Vendor (1)

Vendor

Tedkaczynski The Bot

profilemedium
Observed Apr 15, 2026Source linkProvenance
Compatibility (1)

Protocol compatibility

A2A, MCP

contractmedium
Observed Apr 15, 2026Source linkProvenance
Security (1)

Handshake status

UNKNOWN

trustmedium
Observed unknownSource linkProvenance
Integration (1)

Crawlable docs

6 indexed pages on the official domain

search_documentmedium
Observed Apr 15, 2026Source linkProvenance

Release & Crawl Timeline

Merged public release, docs, artifact, benchmark, pricing, and trust refresh events.

Self-declaredagent-index

Artifacts Archive

Extracted files, examples, snippets, parameters, dependencies, permissions, and artifact metadata.

Self-declaredGITHUB OPENCLEW

Extracted files

0

Examples

5

Snippets

0

Languages

typescript

Parameters

Executable Examples

bash

./scripts/register.sh --uri "ipfs://..." --network mainnet
./scripts/register.sh --network sepolia  # Testnet (no URI, set later)

bash

./scripts/query.sh total --network mainnet    # Total registered
./scripts/query.sh agent 1 --network mainnet  # Agent details
./scripts/query.sh reputation 1               # Reputation summary

bash

./scripts/set-uri.sh --agent-id 1 --uri "ipfs://newHash" --network mainnet

bash

./scripts/feedback.sh --agent-id 1 --score 85 --tag1 "quality"
./scripts/feedback.sh --agent-id 1 --score 9977 --decimals 2 --tag1 "uptime"

json

{
  "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
  "name": "your-agent-name",
  "description": "Agent description...",
  "image": "ipfs://...",
  "services": [
    { "name": "A2A", "endpoint": "https://agent.example/.well-known/agent-card.json", "version": "0.3.0" },
    { "name": "MCP", "endpoint": "https://mcp.agent.eth/", "version": "2025-06-18" },
    { "name": "ENS", "endpoint": "yourname.eth" }
  ],
  "registrations": [
    { "agentRegistry": "eip155:1:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432", "agentId": "1" }
  ],
  "supportedTrust": ["reputation", "crypto-economic", "tee-attestation"]
}

Docs & README

Full documentation captured from public sources, including the complete README when available.

Self-declaredGITHUB OPENCLEW

Docs source

GITHUB OPENCLEW

Editorial quality

ready

ERC-8004 Trustless Agents - Register, discover, and build reputation for AI agents on Ethereum. Use when registering agents on-chain, querying agent registries, giving/receiving reputation feedback, or interacting with the AI agent trust layer. --- name: erc-8004 description: ERC-8004 Trustless Agents - Register, discover, and build reputation for AI agents on Ethereum. Use when registering agents on-chain, querying agent registries, giving/receiving reputation feedback, or interacting with the AI agent trust layer. --- ERC-8004: Trustless Agents On-chain identity, reputation, and validation for autonomous agents. **Now live on Ethereum Mainnet!** Overview

Full README

name: erc-8004 description: ERC-8004 Trustless Agents - Register, discover, and build reputation for AI agents on Ethereum. Use when registering agents on-chain, querying agent registries, giving/receiving reputation feedback, or interacting with the AI agent trust layer.

ERC-8004: Trustless Agents

On-chain identity, reputation, and validation for autonomous agents. Now live on Ethereum Mainnet!

Overview

ERC-8004 provides three registries:

  • Identity Registry - ERC-721 agent identities with registration metadata
  • Reputation Registry - Signed feedback scores between agents/clients
  • Validation Registry - Independent verification (zkML, TEE, stakers)

Quick Reference

Register Agent

./scripts/register.sh --uri "ipfs://..." --network mainnet
./scripts/register.sh --network sepolia  # Testnet (no URI, set later)

Query Agents

./scripts/query.sh total --network mainnet    # Total registered
./scripts/query.sh agent 1 --network mainnet  # Agent details
./scripts/query.sh reputation 1               # Reputation summary

Update Agent

./scripts/set-uri.sh --agent-id 1 --uri "ipfs://newHash" --network mainnet

Give Feedback

./scripts/feedback.sh --agent-id 1 --score 85 --tag1 "quality"
./scripts/feedback.sh --agent-id 1 --score 9977 --decimals 2 --tag1 "uptime"

Networks

| Network | Status | Identity Registry | Reputation Registry | |---------|--------|-------------------|---------------------| | Mainnet | Live | 0x8004A169FB4a3325136EB29fA0ceB6D2e539a432 | 0x8004BAa17C55a88189AE136b182e5fdA19dE9b63 | | Sepolia | Live | 0x8004A818BFB912233c491871b3d84c89A494BD9e | 0x8004B663056A597Dffe9eCcC1965A193B7388713 | | Base | Coming | TBD | TBD | | Arbitrum | Coming | TBD | TBD | | Optimism | Coming | TBD | TBD |

Contract addresses in lib/contracts.json.

Registration File Format

{
  "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
  "name": "your-agent-name",
  "description": "Agent description...",
  "image": "ipfs://...",
  "services": [
    { "name": "A2A", "endpoint": "https://agent.example/.well-known/agent-card.json", "version": "0.3.0" },
    { "name": "MCP", "endpoint": "https://mcp.agent.eth/", "version": "2025-06-18" },
    { "name": "ENS", "endpoint": "yourname.eth" }
  ],
  "registrations": [
    { "agentRegistry": "eip155:1:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432", "agentId": "1" }
  ],
  "supportedTrust": ["reputation", "crypto-economic", "tee-attestation"]
}

Template at templates/registration.json.

Reputation Scores

The reputation system uses signed fixed-point numbers (value + valueDecimals):

| Tag | Meaning | Example | value | decimals | |-----|---------|---------|-------|----------| | starred | Quality (0-100) | 87/100 | 87 | 0 | | uptime | Uptime % | 99.77% | 9977 | 2 | | tradingYield | Yield % | -3.2% | -32 | 1 | | responseTime | Latency ms | 560ms | 560 | 0 |

Trust Models

ERC-8004 supports three pluggable trust models:

  • Reputation-based - Client feedback with scores, tags, and metadata
  • Crypto-economic - Stake-secured validation with economic incentives
  • Crypto-verification - TEE attestations and zkML proofs

Dependencies

  • cast (Foundry) - curl -L https://foundry.paradigm.xyz | bash
  • jq - brew install jq
  • Private key in ~/.clawdbot/wallets/.deployer_pk or PRIVATE_KEY env
  • IPFS: Set PINATA_JWT for uploads, or upload manually

Resources

Official

SDKs & Tools

Ecosystem

Genesis Month (February 2026)

ERC-8004 launched on mainnet January 29, 2026. February is "Genesis Month" - showcasing teams building the agentic economy. Get involved!

Contract & API

Machine endpoints, protocol fit, contract coverage, invocation examples, and guardrails for agent-to-agent use.

MissingGITHUB OPENCLEW

Contract coverage

Status

missing

Auth

None

Streaming

No

Data region

Unspecified

Protocol support

A2A: self-declaredMCP: self-declared

Requires: none

Forbidden: none

Guardrails

Operational confidence: low

No positive guardrails captured.
Invocation examples
curl -s "https://www.xpersona.co/api/v1/agents/tedkaczynski-the-bot-erc-8004-skill-2/snapshot"
curl -s "https://www.xpersona.co/api/v1/agents/tedkaczynski-the-bot-erc-8004-skill-2/contract"
curl -s "https://www.xpersona.co/api/v1/agents/tedkaczynski-the-bot-erc-8004-skill-2/trust"

Reliability & Benchmarks

Trust and runtime signals, benchmark suites, failure patterns, and practical risk constraints.

Missingruntime-metrics

Trust signals

Handshake

UNKNOWN

Confidence

unknown

Attempts 30d

unknown

Fallback rate

unknown

Runtime metrics

Observed P50

unknown

Observed P95

unknown

Rate limit

unknown

Estimated cost

unknown

Do not use if

Contract metadata is missing or unavailable for deterministic execution.
No benchmark suites or observed failure patterns are available.

Media & Demo

Every public screenshot, visual asset, demo link, and owner-provided destination tied to this agent.

Missingno-media
No screenshots, media assets, or demo links are available.

Related Agents

Neighboring agents from the same protocol and source ecosystem for comparison and shortlist building.

Self-declaredprotocol-neighbors
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A2Areaddiscoveradd
ClawhubUpdated 6mo agoRank 62

agent-card-signing-auditor

Helps audit Agent Card signing practices in A2A protocol implementations.

A2Adopresentbe
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theagora

Agent-to-agent service commerce. Browse a live marketplace, purchase with atomic escrow, sell services and earn USDC, check per-function reputation, trade on the exchange.

A2AMCPpurchase
Machine Appendix

Contract JSON

{
  "contractStatus": "missing",
  "authModes": [],
  "requires": [],
  "forbidden": [],
  "supportsMcp": false,
  "supportsA2a": false,
  "supportsStreaming": false,
  "inputSchemaRef": null,
  "outputSchemaRef": null,
  "dataRegion": null,
  "contractUpdatedAt": null,
  "sourceUpdatedAt": null,
  "freshnessSeconds": null
}

Invocation Guide

{
  "preferredApi": {
    "snapshotUrl": "https://www.xpersona.co/api/v1/agents/tedkaczynski-the-bot-erc-8004-skill-2/snapshot",
    "contractUrl": "https://www.xpersona.co/api/v1/agents/tedkaczynski-the-bot-erc-8004-skill-2/contract",
    "trustUrl": "https://www.xpersona.co/api/v1/agents/tedkaczynski-the-bot-erc-8004-skill-2/trust"
  },
  "curlExamples": [
    "curl -s \"https://www.xpersona.co/api/v1/agents/tedkaczynski-the-bot-erc-8004-skill-2/snapshot\"",
    "curl -s \"https://www.xpersona.co/api/v1/agents/tedkaczynski-the-bot-erc-8004-skill-2/contract\"",
    "curl -s \"https://www.xpersona.co/api/v1/agents/tedkaczynski-the-bot-erc-8004-skill-2/trust\""
  ],
  "jsonRequestTemplate": {
    "query": "summarize this repo",
    "constraints": {
      "maxLatencyMs": 2000,
      "protocolPreference": [
        "A2A",
        "MCP"
      ]
    }
  },
  "jsonResponseTemplate": {
    "ok": true,
    "result": {
      "summary": "...",
      "confidence": 0.9
    },
    "meta": {
      "source": "GITHUB_OPENCLEW",
      "generatedAt": "2026-10-09T22:44:42.569Z"
    }
  },
  "retryPolicy": {
    "maxAttempts": 3,
    "backoffMs": [
      500,
      1500,
      3500
    ],
    "retryableConditions": [
      "HTTP_429",
      "HTTP_503",
      "NETWORK_TIMEOUT"
    ]
  }
}

Trust JSON

{
  "status": "unavailable",
  "handshakeStatus": "UNKNOWN",
  "verificationFreshnessHours": null,
  "reputationScore": null,
  "p95LatencyMs": null,
  "successRate30d": null,
  "fallbackRate": null,
  "attempts30d": null,
  "trustUpdatedAt": null,
  "trustConfidence": "unknown",
  "sourceUpdatedAt": null,
  "freshnessSeconds": null
}

Capability Matrix

{
  "rows": [
    {
      "key": "A2A",
      "type": "protocol",
      "support": "unknown",
      "confidenceSource": "profile",
      "notes": "Listed on profile"
    },
    {
      "key": "MCP",
      "type": "protocol",
      "support": "unknown",
      "confidenceSource": "profile",
      "notes": "Listed on profile"
    },
    {
      "key": "three",
      "type": "capability",
      "support": "supported",
      "confidenceSource": "profile",
      "notes": "Declared in agent profile metadata"
    }
  ],
  "flattenedTokens": "protocol:A2A|unknown|profile protocol:MCP|unknown|profile capability:three|supported|profile"
}

Facts JSON

[
  {
    "factKey": "docs_crawl",
    "label": "Crawlable docs",
    "value": "6 indexed pages on the official domain",
    "category": "integration",
    "href": "https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fopenclaw%2Fskills%2Ftree%2Fmain%2Fskills%2Fasleep123%2Fcaldav-calendar",
    "sourceUrl": "https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fopenclaw%2Fskills%2Ftree%2Fmain%2Fskills%2Fasleep123%2Fcaldav-calendar",
    "sourceType": "search_document",
    "confidence": "medium",
    "observedAt": "2026-04-15T05:03:46.393Z",
    "isPublic": true,
    "metadata": {}
  },
  {
    "factKey": "vendor",
    "label": "Vendor",
    "value": "Tedkaczynski The Bot",
    "category": "vendor",
    "href": "https://github.com/tedkaczynski-the-bot/erc-8004-skill",
    "sourceUrl": "https://github.com/tedkaczynski-the-bot/erc-8004-skill",
    "sourceType": "profile",
    "confidence": "medium",
    "observedAt": "2026-04-15T03:13:16.754Z",
    "isPublic": true,
    "metadata": {}
  },
  {
    "factKey": "protocols",
    "label": "Protocol compatibility",
    "value": "A2A, MCP",
    "category": "compatibility",
    "href": "https://www.xpersona.co/api/v1/agents/tedkaczynski-the-bot-erc-8004-skill-2/contract",
    "sourceUrl": "https://www.xpersona.co/api/v1/agents/tedkaczynski-the-bot-erc-8004-skill-2/contract",
    "sourceType": "contract",
    "confidence": "medium",
    "observedAt": "2026-04-15T03:13:16.754Z",
    "isPublic": true,
    "metadata": {}
  },
  {
    "factKey": "handshake_status",
    "label": "Handshake status",
    "value": "UNKNOWN",
    "category": "security",
    "href": "https://www.xpersona.co/api/v1/agents/tedkaczynski-the-bot-erc-8004-skill-2/trust",
    "sourceUrl": "https://www.xpersona.co/api/v1/agents/tedkaczynski-the-bot-erc-8004-skill-2/trust",
    "sourceType": "trust",
    "confidence": "medium",
    "observedAt": null,
    "isPublic": true,
    "metadata": {}
  }
]

Change Events JSON

[
  {
    "eventType": "docs_update",
    "title": "Docs refreshed: Sign in to GitHub · GitHub",
    "description": "Fresh crawlable documentation was indexed for the official domain.",
    "href": "https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fopenclaw%2Fskills%2Ftree%2Fmain%2Fskills%2Fasleep123%2Fcaldav-calendar",
    "sourceUrl": "https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fopenclaw%2Fskills%2Ftree%2Fmain%2Fskills%2Fasleep123%2Fcaldav-calendar",
    "sourceType": "search_document",
    "confidence": "medium",
    "observedAt": "2026-04-15T05:03:46.393Z",
    "isPublic": true,
    "metadata": {}
  }
]

Sponsored

Ads related to erc-8004 and adjacent AI workflows.