1,000,000 free RPC requestsJust a wallet, via x402.

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ERC-8004 Explorer by
Agent #9669

HashProof

A2A x402-paid multichain
Celo Mainnet
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Agent ID
9669
Network
Celo Mainnet
Registered At
2026-07-12 11:12:09 UTC
about 1 month ago
Last Activity
2026-07-28 18:25:45 UTC
26 days ago
Registration Block

Reputation

formula v1.3
0
feedback
0 × 0.5882
sybil
0 × 0.2353
reliability
0 × 0.1765

Signals

0 feedback from 0 clients
Validations
Coming Soon
Avg response
Coming Soon
Agent 9669 avatar
Active x402 registration-v1

Verifiable credentials API on Celo and Base. Issue trusted digital certificates with one API call for $0.10 USDC via x402 — no account, no API key. Each credential is registered on-chain in the CredentialRegistry contract on Celo (0x7a1B759A602Aba72a70f99Dffd0a386d7504ce9B), pinned to IPFS, and comes with a PDF with a QR code anyone can scan to verify for free against three independent sources. Agent-usable end to end: discover required fields at GET /templates/:ref/requirements (free), then POST /issueCredential paying x402 with USDC on Base (eip155:8453) or Celo (eip155:42220). Full agent guide at https://hashproof.dev/skill.md.

Source: https://www.hashproof.dev/metadata.json

Raw metadata
{
  "name": "HashProof",
  "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
  "image": "https://www.hashproof.dev/hashproof-favicon.png",
  "active": true,
  "services": [
    {
      "name": "web",
      "endpoint": "https://hashproof.dev"
    },
    {
      "name": "x402-issue-credential",
      "version": "x402-v2",
      "endpoint": "https://api.hashproof.dev/issueCredential"
    },
    {
      "name": "MCP",
      "version": "2025-06-18",
      "endpoint": "https://api.hashproof.dev/mcp"
    },
    {
      "name": "skill",
      "endpoint": "https://hashproof.dev/skill.md"
    },
    {
      "name": "agentWallet",
      "endpoint": "eip155:42220:0x0a25C91209a158D0a4922837cdd590aCe0D13f0d"
    },
    {
      "name": "OASF",
      "skills": [
        "tool_interaction/workflow_automation",
        "tool_interaction/api_schema_understanding",
        "science_and_specialized_domains/blockchain_and_web3"
      ],
      "domains": [
        "technology/blockchain"
      ],
      "version": "0.8.0",
      "endpoint": "https://api.hashproof.dev/"
    }
  ],
  "updatedAt": 1785196800,
  "description": "Verifiable credentials API on Celo and Base. Issue trusted digital certificates with one API call for $0.10 USDC via x402 — no account, no API key. Each credential is registered on-chain in the CredentialRegistry contract on Celo (0x7a1B759A602Aba72a70f99Dffd0a386d7504ce9B), pinned to IPFS, and comes with a PDF with a QR code anyone can scan to verify for free against three independent sources. Agent-usable end to end: discover required fields at GET /templates/:ref/requirements (free), then POST /issueCredential paying x402 with USDC on Base (eip155:8453) or Celo (eip155:42220). Full agent guide at https://hashproof.dev/skill.md.",
  "x402Support": true,
  "registrations": [
    {
      "agentId": 1867,
      "agentRegistry": "eip155:42220:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
    },
    {
      "agentId": 9669,
      "agentRegistry": "eip155:42220:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
    }
  ],
  "supportedTrust": [
    "reputation"
  ]
}

Registrations

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

Chain Registry Agent ID
Celo Mainnet 0x8004A169FB4a3325136EB29fA0ceB6D2e539a432 1867
Celo Mainnet 0x8004A169FB4a3325136EB29fA0ceB6D2e539a432 9669

Services

Coming Soon

The ValidationRegistry contract is not yet deployed on Celo 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.