ERC-8004 Explorer by
Agent #21557

Agent Trust Gateway

Base Mainnet

Leave feedback for Agent #21557

Agent ID
21557
Network
Base Mainnet
Owner
0xb6cc6e034dab0849f0e4f49ffda6a0865c3f2812 ↗
Creator
0xb6cc6e034dab0849f0e4f49ffda6a0865c3f2812 ↗
Created Tx
0x4830d682f1fc2c871130f2d42fcb18efb1c08160f70671e3583207a6597d31fe
Registry
0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
Registered At
2026-02-28 15:12:33 UTC
2 months ago
Registration Block
42,751,103

Reputation

formula v1.3
91
confidence: low
feedback
85 × 0.5882
sybil
100 × 0.2353
reliability
100 × 0.1765
How is this computed? →

Signals

1 feedback from 1 client
trust
85.0 · 1 feedback · 1 client
Validations
Coming Soon
Avg response
Coming Soon
Agent 21557 avatar
Active x402 registration-v1

ERC-8004 trust scoring and validation for the agentic economy. Query agent profiles, compute trust scores, and validate endpoints.

Source: ipfs://bafkreibxccjpnpvklldrwqqwblwcn4zq4ltfjhpz57tznk2ze7nt7a5sxe

Raw metadata 
{
  "name": "Agent Trust Gateway",
  "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
  "image": "https://gateway.pinata.cloud/ipfs/bafkreibdoozyrfbenalreu3mhzskznwimorziovetz576h4h7szc56hnfa",
  "active": true,
  "services": [
    {
      "name": "OASF",
      "skills": [
        "security_privacy/threat_detection",
        "data_engineering/data_quality_assessment",
        "governance_compliance/compliance_assessment"
      ],
      "domains": [
        "technology/security/identity_management",
        "technology/blockchain/smart_contracts"
      ],
      "version": "v0.8.0",
      "endpoint": "https://github.com/agntcy/oasf/"
    },
    {
      "name": "A2A",
      "version": "0.30",
      "endpoint": "https://agent-trust-gateway.port402.com/.well-known/agent-card.json",
      "a2aSkills": [
        "erc-8004",
        "identity",
        "profile",
        "discovery",
        "x402",
        "reputation",
        "trust",
        "scoring",
        "validation",
        "endpoints",
        "health"
      ]
    },
    {
      "name": "web",
      "endpoint": "https://agent-trust-gateway.port402.com"
    },
    {
      "name": "API",
      "version": "1.0.0",
      "endpoint": "https://agent-trust-gateway.port402.com/api"
    },
    {
      "name": "docs",
      "endpoint": "https://github.com/port402/agent-trust-gateway"
    }
  ],
  "description": "ERC-8004 trust scoring and validation for the agentic economy. Query agent profiles, compute trust scores, and validate endpoints.",
  "x402Support": true,
  "registrations": [
    {
      "agentId": 21557,
      "agentRegistry": "eip155:8453:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
    }
  ],
  "supportedTrust": [
    "reputation"
  ]
}

Registrations

Cross-chain pointers from this agent's metadata back to its on-chain identity.

Chain Registry Agent ID
Base Mainnet 0x8004A169FB4a3325136EB29fA0ceB6D2e539a432 21557

Services

Coming Soon

The ValidationRegistry contract is not yet deployed on Base Mainnet. Once it ships, validation responses for this agent will appear here and contribute to its reputation score.

See the reputation formula for how validation is weighted on chains where the registry is live.