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API / SDKActiveVerifiedRecent · 2mo ago

ERC-8004: Trustless Agents

Ethereum standard providing on-chain identity, reputation, and validation registries for AI agents.

Last commit May 13, 2026 · ★ 217

Website ↗Docs ↗GitHub ↗
Verified on-chainEthereum mainnet
0
agents registered
Read live from the AgentIdentity (AGENT) Identity Registry: 0x8004…a432 ↗.

Read directly from Ethereum mainnet (block 25,609,020) · Jul 25 · not self-reported

Overview

ERC-8004 ('Trustless Agents') defines three on-chain registries: an Identity Registry (ERC-721-based portable identifiers), a Reputation Registry for standardized feedback, and a Validation Registry for cryptographic/economic verification of agent work. It is positioned as the trust layer for the open agent economy and is a companion to ERC-8183. Press reports cite large registration numbers (tens of thousands of agents within the first month of mainnet); such figures are self-reported/press-sourced and not independently verified here. Multiple reference implementations exist (e.g. ChaosChain, erc-8004/erc-8004-contracts).

Sato Score

71/100· High

How open, active & verifiable — not a safety or returns grade.

Maintenance & liveness
25/35
Code transparency
19/20
Interface verifiability
0/10
Docs & demo
6/10
Listing transparency & provenance
13/15
Independent verification
8/10

Independently verified — listing reviewed against evidence, never self-reported.

View verification & embed badge →How the Sato Score works

Details

Chains
Ethereum, Multichain, Base, Arbitrum
Agent types
Identity Protocol, Reputation Protocol
Open source
Yes
Pricing
Free (open standard)
Last checked
2026-07-25

Marketplace Signals

No marketplace signals recorded for this resource yet.

Verification status reflects evidence reviewed by Sato Hub. Self-reported claims are never presented as verified.

#agent-identity#reputation#eip#standard#trustless#registry#ethereum#smart-contracts#identity-registry#reputation-registry

Where ERC-8004: Trustless Agents fits

TradingIdentity & Verification

Related concepts: How Agents Interact With Smart Contracts, How Agents Use Wallets, What Are Onchain Agents?

See something inaccurate or outdated?Submit a correction →

Listing History

Recorded changes to ERC-8004: Trustless Agents's listing — status, verification, Sato Score, and recent releases. Full history is kept in the listing record.

  1. Jul 21, 2026
    Edited: onchain address
  2. Jul 20, 2026
    Edited: deploy spec
  3. Jun 25, 2026
    Enriched: creator name, tags, marketplace notes
  4. Jun 25, 2026
    Auto-enriched: chains supported, supported integrations
  5. Jun 11, 2026
    Sato Hub began tracking this listing

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