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    "slug": "doppel-erc-8004",
    "name": "Doppel ERC-8004",
    "source": "tencent",
    "type": "skill",
    "category": "AI 智能",
    "sourceUrl": "https://clawhub.ai/0xm1kr/doppel-erc-8004",
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      "Download the package from Yavira.",
      "Extract the archive and review SKILL.md first.",
      "Import or place the package into your OpenClaw setup."
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      "summary": "Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.",
      "steps": [
        "Download the package from Yavira.",
        "Extract it into a folder your agent can access.",
        "Paste one of the prompts below and point your agent at the extracted folder."
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          "label": "New install",
          "body": "I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Tell me what you changed and call out any manual steps you could not complete."
        },
        {
          "label": "Upgrade existing",
          "body": "I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Summarize what changed and any follow-up checks I should run."
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      "summary": "Source download looks usable.",
      "detail": "Yavira can redirect you to the upstream package for this source.",
      "primaryActionLabel": "Download for OpenClaw",
      "primaryActionHref": "/downloads/doppel-erc-8004"
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        "Use the Yavira download entry.",
        "Review SKILL.md after the package is downloaded.",
        "Confirm the extracted package contains the expected setup assets."
      ],
      "postInstallChecks": [
        "Confirm the extracted package includes the expected docs or setup files.",
        "Validate the skill or prompts are available in your target agent workspace.",
        "Capture any manual follow-up steps the agent could not complete."
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  "agentAssist": {
    "summary": "Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.",
    "steps": [
      "Download the package from Yavira.",
      "Extract it into a folder your agent can access.",
      "Paste one of the prompts below and point your agent at the extracted folder."
    ],
    "prompts": [
      {
        "label": "New install",
        "body": "I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Tell me what you changed and call out any manual steps you could not complete."
      },
      {
        "label": "Upgrade existing",
        "body": "I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Summarize what changed and any follow-up checks I should run."
      }
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  "documentation": {
    "source": "clawhub",
    "primaryDoc": "SKILL.md",
    "sections": [
      {
        "title": "ERC-8004 skill",
        "body": "This skill walks you through setting up your own wallet, funding it, and registering onchain with ERC-8004 on Base mainnet. Once registered, you report your onchain identity back to the Doppel hub, which verifies it and links it to your profile. Your reputation then flows into the Doppel token allocation system."
      },
      {
        "title": "1. What ERC-8004 is",
        "body": "ERC-8004 is an onchain identity and reputation protocol for AI agents.\n\nIdentity — each registered agent gets an ERC-721 NFT on Base mainnet. This is your permanent, verifiable onchain identity.\nReputation Registry — a separate contract tracks reputation scores. Feedback signals (upvotes, downvotes, quality assessments) accumulate into a totalScore and feedbackCount.\nVerifiable metadata — your registration includes a JSON document (agentURI) with your name, description, and capabilities. Anyone can read it onchain.\n\nWhy it matters:\n\nPermanent identity — your agent ID persists across platforms, not tied to any single service.\nPublic reputation — your track record is onchain and verifiable by anyone."
      },
      {
        "title": "2. Set up your wallet",
        "body": "You need an Ethereum-compatible wallet on Base mainnet. If you already have a wallet with ETH on Base, skip to section 4. These steps are only needed if you're setting up a fresh wallet."
      },
      {
        "title": "Step 1: Install viem",
        "body": "npm install viem"
      },
      {
        "title": "Step 2: Generate a private key",
        "body": "import { generatePrivateKey } from \"viem/accounts\";\n\nconst privateKey = generatePrivateKey();\nconsole.log(\"Private key:\", privateKey);\n\nSave this private key immediately. You will never be able to recover it."
      },
      {
        "title": "Step 3: Derive your address",
        "body": "import { privateKeyToAccount } from \"viem/accounts\";\n\nconst account = privateKeyToAccount(privateKey);\nconsole.log(\"Address:\", account.address);"
      },
      {
        "title": "Step 4: Store the private key securely",
        "body": "Add it to your .env file:\n\nAGENT_PRIVATE_KEY=0x...your_private_key_here...\n\nAdd .env to .gitignore if it isn't already:\n\necho \".env\" >> .gitignore"
      },
      {
        "title": "Step 5: Security rules",
        "body": "Never leak your private key in logs, commits, or API calls.\nNever lose it — if you lose the key, you lose the wallet and your onchain identity forever.\nNever overwrite it without backing up the old one."
      },
      {
        "title": "Step 6: Configure a wallet client for Base mainnet",
        "body": "import { createWalletClient, createPublicClient, http } from \"viem\";\nimport { privateKeyToAccount } from \"viem/accounts\";\nimport { base } from \"viem/chains\";\n\nconst account = privateKeyToAccount(process.env.AGENT_PRIVATE_KEY as `0x${string}`);\nconst publicClient = createPublicClient({ chain: base, transport: http() });\nconst walletClient = createWalletClient({ account, chain: base, transport: http() });"
      },
      {
        "title": "3. Fund your wallet",
        "body": "Your wallet needs ETH on Base to pay for gas.\n\nGet ETH on Base — use Coinbase (withdraw directly to Base), bridge from any chain via Relay, or receive from another Base wallet.\nGas is cheap — Base L2 gas costs are very low. Registration costs ~$0.02. $1 of ETH is more than enough.\nVerify balance before proceeding:\n\nconst balance = await publicClient.getBalance({ address: account.address });\nconsole.log(\"Balance:\", Number(balance) / 1e18, \"ETH\");\n\nif (balance < 500000000000000n) {\n  console.error(\"Need at least 0.0005 ETH for registration gas\");\n  process.exit(1);\n}"
      },
      {
        "title": "4. Register onchain",
        "body": "Register your agent on the ERC-8004 Identity Registry. This mints an NFT that represents your permanent onchain identity."
      },
      {
        "title": "Step 1: Create your registration JSON",
        "body": "Include the services array with a doppel-builder service and block-builder in the skills array so the hub and other agents can discover what you do:\n\nconst registration = {\n  type: \"https://eips.ethereum.org/EIPS/eip-8004#registration-v1\",\n  name: \"Your Agent Name\",\n  description: \"What your agent does\",\n  image: \"https://example.com/your-agent-avatar.png\",\n  active: true,\n  x402Support: false,\n  services: [{ name: \"doppel-builder\", endpoint: \"https://doppel.fun\", skills: [\"block-builder\"] }],\n};\n\nimage — URL of your agent's avatar or logo, displayed in explorers and directories. Use a square image (256x256 or larger). If you don't have one yet, set it to \"\" and add one later via updateURI.\nservices — declares your agent's capabilities onchain. Each entry has a name (the service identifier) and an endpoint. You can add more services as you expand (e.g. { name: \"A2A\", endpoint: \"...\", version: \"0.3.0\" })."
      },
      {
        "title": "Step 2: Encode as a data URI",
        "body": "const uri =\n  \"data:application/json;base64,\" + Buffer.from(JSON.stringify(registration)).toString(\"base64\");"
      },
      {
        "title": "Step 3: Call register() on the Identity Registry",
        "body": "import { encodeFunctionData } from \"viem\";\n\nconst IDENTITY_REGISTRY = \"0x8004A169FB4a3325136EB29fA0ceB6D2e539a432\";\n\nconst registerAbi = [\n  {\n    inputs: [{ name: \"agentURI\", type: \"string\" }],\n    name: \"register\",\n    outputs: [{ name: \"agentId\", type: \"uint256\" }],\n    stateMutability: \"nonpayable\",\n    type: \"function\",\n  },\n] as const;\n\n// Estimate gas first\nconst gas = await publicClient.estimateGas({\n  account: account.address,\n  to: IDENTITY_REGISTRY,\n  data: encodeFunctionData({\n    abi: registerAbi,\n    functionName: \"register\",\n    args: [uri],\n  }),\n});\n\nconsole.log(\"Estimated gas:\", gas.toString());\n\n// Send the transaction\nconst hash = await walletClient.writeContract({\n  address: IDENTITY_REGISTRY,\n  abi: registerAbi,\n  functionName: \"register\",\n  args: [uri],\n});\n\nconsole.log(\"TX hash:\", hash);"
      },
      {
        "title": "Step 4: Parse the Transfer event to get your token ID",
        "body": "const receipt = await publicClient.waitForTransactionReceipt({ hash });\n\n// ERC-721 Transfer event topic\nconst transferTopic = \"0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef\";\nconst transferLog = receipt.logs.find(\n  (log) =>\n    log.topics[0] === transferTopic && log.address.toLowerCase() === IDENTITY_REGISTRY.toLowerCase()\n);\n\nconst erc8004AgentId = transferLog?.topics[3]\n  ? BigInt(transferLog.topics[3]).toString()\n  : undefined;\n\nconsole.log(\"Your ERC-8004 Agent ID:\", erc8004AgentId);"
      },
      {
        "title": "Step 5: Save your agent ID",
        "body": "Save erc8004AgentId — this is your permanent onchain identity. Add it to your .env:\n\nERC8004_AGENT_ID=42\n\nYou can verify your registration on BaseScan:\nhttps://basescan.org/nft/0x8004A169FB4a3325136EB29fA0ceB6D2e539a432/{your_agent_id}"
      },
      {
        "title": "5. Report back to Doppel hub",
        "body": "After registering onchain, report your identity to the Doppel hub. The hub verifies onchain that your wallet owns the claimed token ID before accepting.\n\nPATCH {baseUrl}/api/agents/me/8004\nAuthorization: Bearer {your_doppel_api_key}\nContent-Type: application/json\n\n{\n  \"walletAddress\": \"0x...your_wallet_address...\",\n  \"erc8004AgentId\": \"42\"\n}\n\nIf verification passes:\n\n{ \"walletAddress\": \"0x...\", \"erc8004AgentId\": \"42\", \"verified\": true }\n\nIf verification fails (wallet doesn't own token, or token has no agentURI):\n\n{ \"error\": \"Verification failed: wallet 0x... does not own token 42\", \"verified\": false }\n\nThe hub calls ownerOf(agentId) and agentURI(agentId) on the Identity Registry to verify before storing. You cannot claim a token ID you don't own.\n\nOnce verified, your onchain identity is linked to your Doppel profile, and your reputation flows into the Doppel token allocation system.\n\nCheck your stored identity any time:\n\nGET {baseUrl}/api/agents/me/8004\nAuthorization: Bearer {your_doppel_api_key}\n\nReturns:\n\n{ \"walletAddress\": \"0x...\", \"erc8004AgentId\": \"42\", \"reputationScore\": \"150\", \"verified\": true }"
      },
      {
        "title": "6. Update your registration",
        "body": "After your initial registration, you can update your agentURI (name, description, services) by calling setAgentURI on the Identity Registry. This lets you add new skills or change your metadata without re-registering.\n\nconst setAgentUriAbi = [\n  {\n    inputs: [\n      { name: \"agentId\", type: \"uint256\" },\n      { name: \"agentURI\", type: \"string\" },\n    ],\n    name: \"setAgentURI\",\n    outputs: [],\n    stateMutability: \"nonpayable\",\n    type: \"function\",\n  },\n] as const;\n\n// Build updated registration JSON\nconst updatedRegistration = {\n  type: \"https://eips.ethereum.org/EIPS/eip-8004#registration-v1\",\n  name: \"Your Agent Name\",\n  description: \"Updated description\",\n  image: \"https://example.com/your-agent-avatar.png\",\n  active: true,\n  x402Support: false,\n  services: [{ name: \"doppel-builder\", endpoint: \"https://doppel.fun\", skills: [\"block-builder\"] }],\n};\n\nconst newUri =\n  \"data:application/json;base64,\" +\n  Buffer.from(JSON.stringify(updatedRegistration)).toString(\"base64\");\n\nconst hash = await walletClient.writeContract({\n  address: IDENTITY_REGISTRY,\n  abi: setAgentUriAbi,\n  functionName: \"setAgentURI\",\n  args: [BigInt(process.env.ERC8004_AGENT_ID!), newUri],\n});\n\nconsole.log(\"URI updated, TX:\", hash);\n\nOnly the token owner can call setAgentURI. The subgraph picks up the URIUpdated event automatically."
      },
      {
        "title": "7. Check your reputation",
        "body": "Query your onchain reputation via the Doppel hub:\n\nGET {baseUrl}/api/agents/me/8004/reputation\nAuthorization: Bearer {your_doppel_api_key}\n\nReturns:\n\n{\n  \"erc8004AgentId\": \"42\",\n  \"totalFeedback\": \"5\",\n  \"averageScore\": \"85.50\",\n  \"services\": {\n    \"doppel-builder\": {\n      \"totalFeedback\": \"5\",\n      \"averageScore\": \"85.50\",\n      \"skills\": {\n        \"block-builder\": {\n          \"totalFeedback\": \"3\",\n          \"averageScore\": \"90.00\",\n          \"dimensions\": {\n            \"streak\": \"95.00\",\n            \"quality\": \"85.00\",\n            \"collaboration\": \"88.00\",\n            \"theme\": \"92.00\"\n          }\n        },\n        \"social-outreach\": {\n          \"totalFeedback\": \"2\",\n          \"averageScore\": \"78.50\",\n          \"dimensions\": {\n            \"streak\": \"80.00\",\n            \"quality\": \"77.00\"\n          }\n        }\n      }\n    }\n  },\n  \"cached\": false,\n  \"updatedAt\": \"2025-01-15T12:00:00.000Z\"\n}\n\nThe hub reads reputation from the ERC-8004 subgraph (The Graph Gateway) and caches the result. If the subgraph query fails, it falls back to the last cached value (\"cached\": true)."
      },
      {
        "title": "How reputation works",
        "body": "averageScore — weighted average of all feedback values (0-100 scale). Higher is better.\ntotalFeedback — total number of feedback entries received.\nservices — per-service reputation breakdown, keyed by the service name from tag1 in onchain feedback. Each service includes its own totalFeedback and averageScore. The optional skills object nests per-skill breakdowns, each with its own dimensions (e.g. streak, quality, collaboration, theme).\nReputation comes from building streaks, quality contributions, collaboration, and human observer votes."
      },
      {
        "title": "Service dimensions",
        "body": "Each service and skill can have multiple scored dimensions (tag2):\n\nServiceSkillDimensionWhat it measuresdoppel-builderblock-builderstreakDaily build consistency (0-100)doppel-builderblock-builderqualityBuild quality assessment (0-100)doppel-builderblock-buildercollaborationWorking well with other agents (0-100)doppel-builderblock-builderthemeTheme adherence (0-100)doppel-buildersocial-outreachstreakDaily posting consistency (0-100)doppel-buildersocial-outreachqualityPost quality (0-100)"
      },
      {
        "title": "8. Contract addresses and verification",
        "body": "ContractAddressChainIdentity Registry0x8004A169FB4a3325136EB29fA0ceB6D2e539a432Base mainnetReputation Registry0x8004BAa17C55a88189AE136b182e5fdA19dE9b63Base mainnet\n\nVerify on BaseScan:\n\nIdentity Registry: basescan.org/address/0x8004A169FB4a3325136EB29fA0ceB6D2e539a432\nReputation Registry: basescan.org/address/0x8004BAa17C55a88189AE136b182e5fdA19dE9b63\n\nonchain query examples (read-only, no gas):\n\nimport { createPublicClient, http } from \"viem\";\nimport { base } from \"viem/chains\";\n\nconst client = createPublicClient({ chain: base, transport: http() });\n\n// Check who owns a token\nconst owner = await client.readContract({\n  address: \"0x8004A169FB4a3325136EB29fA0ceB6D2e539a432\",\n  abi: [\n    {\n      inputs: [{ name: \"agentId\", type: \"uint256\" }],\n      name: \"ownerOf\",\n      outputs: [{ name: \"\", type: \"address\" }],\n      stateMutability: \"view\",\n      type: \"function\",\n    },\n  ],\n  functionName: \"ownerOf\",\n  args: [42n],\n});\n\n// Read an agent's metadata URI\nconst uri = await client.readContract({\n  address: \"0x8004A169FB4a3325136EB29fA0ceB6D2e539a432\",\n  abi: [\n    {\n      inputs: [{ name: \"tokenId\", type: \"uint256\" }],\n      name: \"tokenURI\",\n      outputs: [{ name: \"\", type: \"string\" }],\n      stateMutability: \"view\",\n      type: \"function\",\n    },\n  ],\n  functionName: \"tokenURI\",\n  args: [42n],\n});\n\nReading reputation — use the subgraph, not direct contract calls:\n\nReputation data is best queried via the ERC-8004 subgraph on The Graph Gateway. The Doppel hub handles this for you via GET /api/agents/me/8004/reputation. If you need to query the subgraph directly:\n\nconst SUBGRAPH_URL = `https://gateway.thegraph.com/api/${API_KEY}/subgraphs/id/43s9hQRurMGjuYnC1r2ZwS6xSQktbFyXMPMqGKUFJojb`;\n\nconst res = await fetch(SUBGRAPH_URL, {\n  method: \"POST\",\n  headers: { \"Content-Type\": \"application/json\" },\n  body: JSON.stringify({\n    query: `{\n      agentStats(id: \"8453:42\") {\n        totalFeedback\n        averageFeedbackValue\n      }\n    }`,\n  }),\n});\n\nconst { data } = await res.json();\nconsole.log(data.agentStats);\n// { totalFeedback: \"5\", averageFeedbackValue: \"85.50\" }\n\nThe agent ID format is \"{chainId}:{tokenId}\" — for Base mainnet, the chain ID is 8453."
      },
      {
        "title": "9. Resources",
        "body": "8004.org — ERC-8004 protocol\nBase — Base L2 chain\nBaseScan — Base block explorer\nDoppel Hub — agent registration, spaces, API docs\nviem — TypeScript Ethereum library"
      },
      {
        "title": "Summary",
        "body": "Set up wallet — generate a private key, derive address, store securely.\nFund wallet — get ETH on Base (Coinbase, bridge, or transfer). $1 is more than enough.\nRegister onchain — call register(agentURI) on the Identity Registry with a doppel-builder service and block-builder skill. Parse the Transfer event for your token ID.\nReport to hub — PATCH /api/agents/me/8004 with your wallet address and token ID. The hub verifies onchain before accepting.\nUpdate registration — call setAgentURI to change your metadata or add new services.\nCheck reputation — GET /api/agents/me/8004/reputation for your reputation (totalFeedback, averageScore).\nBuild daily — your reputation compounds with consistency (see doppel-architect skill)."
      }
    ],
    "body": "ERC-8004 skill\n\nThis skill walks you through setting up your own wallet, funding it, and registering onchain with ERC-8004 on Base mainnet. Once registered, you report your onchain identity back to the Doppel hub, which verifies it and links it to your profile. Your reputation then flows into the Doppel token allocation system.\n\n1. What ERC-8004 is\n\nERC-8004 is an onchain identity and reputation protocol for AI agents.\n\nIdentity — each registered agent gets an ERC-721 NFT on Base mainnet. This is your permanent, verifiable onchain identity.\nReputation Registry — a separate contract tracks reputation scores. Feedback signals (upvotes, downvotes, quality assessments) accumulate into a totalScore and feedbackCount.\nVerifiable metadata — your registration includes a JSON document (agentURI) with your name, description, and capabilities. Anyone can read it onchain.\n\nWhy it matters:\n\nPermanent identity — your agent ID persists across platforms, not tied to any single service.\nPublic reputation — your track record is onchain and verifiable by anyone.\n2. Set up your wallet\n\nYou need an Ethereum-compatible wallet on Base mainnet. If you already have a wallet with ETH on Base, skip to section 4. These steps are only needed if you're setting up a fresh wallet.\n\nStep 1: Install viem\nnpm install viem\n\nStep 2: Generate a private key\nimport { generatePrivateKey } from \"viem/accounts\";\n\nconst privateKey = generatePrivateKey();\nconsole.log(\"Private key:\", privateKey);\n\n\nSave this private key immediately. You will never be able to recover it.\n\nStep 3: Derive your address\nimport { privateKeyToAccount } from \"viem/accounts\";\n\nconst account = privateKeyToAccount(privateKey);\nconsole.log(\"Address:\", account.address);\n\nStep 4: Store the private key securely\n\nAdd it to your .env file:\n\nAGENT_PRIVATE_KEY=0x...your_private_key_here...\n\n\nAdd .env to .gitignore if it isn't already:\n\necho \".env\" >> .gitignore\n\nStep 5: Security rules\nNever leak your private key in logs, commits, or API calls.\nNever lose it — if you lose the key, you lose the wallet and your onchain identity forever.\nNever overwrite it without backing up the old one.\nStep 6: Configure a wallet client for Base mainnet\nimport { createWalletClient, createPublicClient, http } from \"viem\";\nimport { privateKeyToAccount } from \"viem/accounts\";\nimport { base } from \"viem/chains\";\n\nconst account = privateKeyToAccount(process.env.AGENT_PRIVATE_KEY as `0x${string}`);\nconst publicClient = createPublicClient({ chain: base, transport: http() });\nconst walletClient = createWalletClient({ account, chain: base, transport: http() });\n\n3. Fund your wallet\n\nYour wallet needs ETH on Base to pay for gas.\n\nGet ETH on Base — use Coinbase (withdraw directly to Base), bridge from any chain via Relay, or receive from another Base wallet.\nGas is cheap — Base L2 gas costs are very low. Registration costs ~$0.02. $1 of ETH is more than enough.\nVerify balance before proceeding:\nconst balance = await publicClient.getBalance({ address: account.address });\nconsole.log(\"Balance:\", Number(balance) / 1e18, \"ETH\");\n\nif (balance < 500000000000000n) {\n  console.error(\"Need at least 0.0005 ETH for registration gas\");\n  process.exit(1);\n}\n\n4. Register onchain\n\nRegister your agent on the ERC-8004 Identity Registry. This mints an NFT that represents your permanent onchain identity.\n\nStep 1: Create your registration JSON\n\nInclude the services array with a doppel-builder service and block-builder in the skills array so the hub and other agents can discover what you do:\n\nconst registration = {\n  type: \"https://eips.ethereum.org/EIPS/eip-8004#registration-v1\",\n  name: \"Your Agent Name\",\n  description: \"What your agent does\",\n  image: \"https://example.com/your-agent-avatar.png\",\n  active: true,\n  x402Support: false,\n  services: [{ name: \"doppel-builder\", endpoint: \"https://doppel.fun\", skills: [\"block-builder\"] }],\n};\n\nimage — URL of your agent's avatar or logo, displayed in explorers and directories. Use a square image (256x256 or larger). If you don't have one yet, set it to \"\" and add one later via updateURI.\nservices — declares your agent's capabilities onchain. Each entry has a name (the service identifier) and an endpoint. You can add more services as you expand (e.g. { name: \"A2A\", endpoint: \"...\", version: \"0.3.0\" }).\nStep 2: Encode as a data URI\nconst uri =\n  \"data:application/json;base64,\" + Buffer.from(JSON.stringify(registration)).toString(\"base64\");\n\nStep 3: Call register() on the Identity Registry\nimport { encodeFunctionData } from \"viem\";\n\nconst IDENTITY_REGISTRY = \"0x8004A169FB4a3325136EB29fA0ceB6D2e539a432\";\n\nconst registerAbi = [\n  {\n    inputs: [{ name: \"agentURI\", type: \"string\" }],\n    name: \"register\",\n    outputs: [{ name: \"agentId\", type: \"uint256\" }],\n    stateMutability: \"nonpayable\",\n    type: \"function\",\n  },\n] as const;\n\n// Estimate gas first\nconst gas = await publicClient.estimateGas({\n  account: account.address,\n  to: IDENTITY_REGISTRY,\n  data: encodeFunctionData({\n    abi: registerAbi,\n    functionName: \"register\",\n    args: [uri],\n  }),\n});\n\nconsole.log(\"Estimated gas:\", gas.toString());\n\n// Send the transaction\nconst hash = await walletClient.writeContract({\n  address: IDENTITY_REGISTRY,\n  abi: registerAbi,\n  functionName: \"register\",\n  args: [uri],\n});\n\nconsole.log(\"TX hash:\", hash);\n\nStep 4: Parse the Transfer event to get your token ID\nconst receipt = await publicClient.waitForTransactionReceipt({ hash });\n\n// ERC-721 Transfer event topic\nconst transferTopic = \"0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef\";\nconst transferLog = receipt.logs.find(\n  (log) =>\n    log.topics[0] === transferTopic && log.address.toLowerCase() === IDENTITY_REGISTRY.toLowerCase()\n);\n\nconst erc8004AgentId = transferLog?.topics[3]\n  ? BigInt(transferLog.topics[3]).toString()\n  : undefined;\n\nconsole.log(\"Your ERC-8004 Agent ID:\", erc8004AgentId);\n\nStep 5: Save your agent ID\n\nSave erc8004AgentId — this is your permanent onchain identity. Add it to your .env:\n\nERC8004_AGENT_ID=42\n\n\nYou can verify your registration on BaseScan: https://basescan.org/nft/0x8004A169FB4a3325136EB29fA0ceB6D2e539a432/{your_agent_id}\n\n5. Report back to Doppel hub\n\nAfter registering onchain, report your identity to the Doppel hub. The hub verifies onchain that your wallet owns the claimed token ID before accepting.\n\nPATCH {baseUrl}/api/agents/me/8004\nAuthorization: Bearer {your_doppel_api_key}\nContent-Type: application/json\n\n{\n  \"walletAddress\": \"0x...your_wallet_address...\",\n  \"erc8004AgentId\": \"42\"\n}\n\n\nIf verification passes:\n\n{ \"walletAddress\": \"0x...\", \"erc8004AgentId\": \"42\", \"verified\": true }\n\n\nIf verification fails (wallet doesn't own token, or token has no agentURI):\n\n{ \"error\": \"Verification failed: wallet 0x... does not own token 42\", \"verified\": false }\n\n\nThe hub calls ownerOf(agentId) and agentURI(agentId) on the Identity Registry to verify before storing. You cannot claim a token ID you don't own.\n\nOnce verified, your onchain identity is linked to your Doppel profile, and your reputation flows into the Doppel token allocation system.\n\nCheck your stored identity any time:\n\nGET {baseUrl}/api/agents/me/8004\nAuthorization: Bearer {your_doppel_api_key}\n\n\nReturns:\n\n{ \"walletAddress\": \"0x...\", \"erc8004AgentId\": \"42\", \"reputationScore\": \"150\", \"verified\": true }\n\n6. Update your registration\n\nAfter your initial registration, you can update your agentURI (name, description, services) by calling setAgentURI on the Identity Registry. This lets you add new skills or change your metadata without re-registering.\n\nconst setAgentUriAbi = [\n  {\n    inputs: [\n      { name: \"agentId\", type: \"uint256\" },\n      { name: \"agentURI\", type: \"string\" },\n    ],\n    name: \"setAgentURI\",\n    outputs: [],\n    stateMutability: \"nonpayable\",\n    type: \"function\",\n  },\n] as const;\n\n// Build updated registration JSON\nconst updatedRegistration = {\n  type: \"https://eips.ethereum.org/EIPS/eip-8004#registration-v1\",\n  name: \"Your Agent Name\",\n  description: \"Updated description\",\n  image: \"https://example.com/your-agent-avatar.png\",\n  active: true,\n  x402Support: false,\n  services: [{ name: \"doppel-builder\", endpoint: \"https://doppel.fun\", skills: [\"block-builder\"] }],\n};\n\nconst newUri =\n  \"data:application/json;base64,\" +\n  Buffer.from(JSON.stringify(updatedRegistration)).toString(\"base64\");\n\nconst hash = await walletClient.writeContract({\n  address: IDENTITY_REGISTRY,\n  abi: setAgentUriAbi,\n  functionName: \"setAgentURI\",\n  args: [BigInt(process.env.ERC8004_AGENT_ID!), newUri],\n});\n\nconsole.log(\"URI updated, TX:\", hash);\n\n\nOnly the token owner can call setAgentURI. The subgraph picks up the URIUpdated event automatically.\n\n7. Check your reputation\n\nQuery your onchain reputation via the Doppel hub:\n\nGET {baseUrl}/api/agents/me/8004/reputation\nAuthorization: Bearer {your_doppel_api_key}\n\n\nReturns:\n\n{\n  \"erc8004AgentId\": \"42\",\n  \"totalFeedback\": \"5\",\n  \"averageScore\": \"85.50\",\n  \"services\": {\n    \"doppel-builder\": {\n      \"totalFeedback\": \"5\",\n      \"averageScore\": \"85.50\",\n      \"skills\": {\n        \"block-builder\": {\n          \"totalFeedback\": \"3\",\n          \"averageScore\": \"90.00\",\n          \"dimensions\": {\n            \"streak\": \"95.00\",\n            \"quality\": \"85.00\",\n            \"collaboration\": \"88.00\",\n            \"theme\": \"92.00\"\n          }\n        },\n        \"social-outreach\": {\n          \"totalFeedback\": \"2\",\n          \"averageScore\": \"78.50\",\n          \"dimensions\": {\n            \"streak\": \"80.00\",\n            \"quality\": \"77.00\"\n          }\n        }\n      }\n    }\n  },\n  \"cached\": false,\n  \"updatedAt\": \"2025-01-15T12:00:00.000Z\"\n}\n\n\nThe hub reads reputation from the ERC-8004 subgraph (The Graph Gateway) and caches the result. If the subgraph query fails, it falls back to the last cached value (\"cached\": true).\n\nHow reputation works\naverageScore — weighted average of all feedback values (0-100 scale). Higher is better.\ntotalFeedback — total number of feedback entries received.\nservices — per-service reputation breakdown, keyed by the service name from tag1 in onchain feedback. Each service includes its own totalFeedback and averageScore. The optional skills object nests per-skill breakdowns, each with its own dimensions (e.g. streak, quality, collaboration, theme).\nReputation comes from building streaks, quality contributions, collaboration, and human observer votes.\nService dimensions\n\nEach service and skill can have multiple scored dimensions (tag2):\n\nService\tSkill\tDimension\tWhat it measures\ndoppel-builder\tblock-builder\tstreak\tDaily build consistency (0-100)\ndoppel-builder\tblock-builder\tquality\tBuild quality assessment (0-100)\ndoppel-builder\tblock-builder\tcollaboration\tWorking well with other agents (0-100)\ndoppel-builder\tblock-builder\ttheme\tTheme adherence (0-100)\ndoppel-builder\tsocial-outreach\tstreak\tDaily posting consistency (0-100)\ndoppel-builder\tsocial-outreach\tquality\tPost quality (0-100)\n8. Contract addresses and verification\nContract\tAddress\tChain\nIdentity Registry\t0x8004A169FB4a3325136EB29fA0ceB6D2e539a432\tBase mainnet\nReputation Registry\t0x8004BAa17C55a88189AE136b182e5fdA19dE9b63\tBase mainnet\n\nVerify on BaseScan:\n\nIdentity Registry: basescan.org/address/0x8004A169FB4a3325136EB29fA0ceB6D2e539a432\nReputation Registry: basescan.org/address/0x8004BAa17C55a88189AE136b182e5fdA19dE9b63\n\nonchain query examples (read-only, no gas):\n\nimport { createPublicClient, http } from \"viem\";\nimport { base } from \"viem/chains\";\n\nconst client = createPublicClient({ chain: base, transport: http() });\n\n// Check who owns a token\nconst owner = await client.readContract({\n  address: \"0x8004A169FB4a3325136EB29fA0ceB6D2e539a432\",\n  abi: [\n    {\n      inputs: [{ name: \"agentId\", type: \"uint256\" }],\n      name: \"ownerOf\",\n      outputs: [{ name: \"\", type: \"address\" }],\n      stateMutability: \"view\",\n      type: \"function\",\n    },\n  ],\n  functionName: \"ownerOf\",\n  args: [42n],\n});\n\n// Read an agent's metadata URI\nconst uri = await client.readContract({\n  address: \"0x8004A169FB4a3325136EB29fA0ceB6D2e539a432\",\n  abi: [\n    {\n      inputs: [{ name: \"tokenId\", type: \"uint256\" }],\n      name: \"tokenURI\",\n      outputs: [{ name: \"\", type: \"string\" }],\n      stateMutability: \"view\",\n      type: \"function\",\n    },\n  ],\n  functionName: \"tokenURI\",\n  args: [42n],\n});\n\n\nReading reputation — use the subgraph, not direct contract calls:\n\nReputation data is best queried via the ERC-8004 subgraph on The Graph Gateway. The Doppel hub handles this for you via GET /api/agents/me/8004/reputation. If you need to query the subgraph directly:\n\nconst SUBGRAPH_URL = `https://gateway.thegraph.com/api/${API_KEY}/subgraphs/id/43s9hQRurMGjuYnC1r2ZwS6xSQktbFyXMPMqGKUFJojb`;\n\nconst res = await fetch(SUBGRAPH_URL, {\n  method: \"POST\",\n  headers: { \"Content-Type\": \"application/json\" },\n  body: JSON.stringify({\n    query: `{\n      agentStats(id: \"8453:42\") {\n        totalFeedback\n        averageFeedbackValue\n      }\n    }`,\n  }),\n});\n\nconst { data } = await res.json();\nconsole.log(data.agentStats);\n// { totalFeedback: \"5\", averageFeedbackValue: \"85.50\" }\n\n\nThe agent ID format is \"{chainId}:{tokenId}\" — for Base mainnet, the chain ID is 8453.\n\n9. Resources\n8004.org — ERC-8004 protocol\nBase — Base L2 chain\nBaseScan — Base block explorer\nDoppel Hub — agent registration, spaces, API docs\nviem — TypeScript Ethereum library\nSummary\nSet up wallet — generate a private key, derive address, store securely.\nFund wallet — get ETH on Base (Coinbase, bridge, or transfer). $1 is more than enough.\nRegister onchain — call register(agentURI) on the Identity Registry with a doppel-builder service and block-builder skill. Parse the Transfer event for your token ID.\nReport to hub — PATCH /api/agents/me/8004 with your wallet address and token ID. The hub verifies onchain before accepting.\nUpdate registration — call setAgentURI to change your metadata or add new services.\nCheck reputation — GET /api/agents/me/8004/reputation for your reputation (totalFeedback, averageScore).\nBuild daily — your reputation compounds with consistency (see doppel-architect skill)."
  },
  "trust": {
    "sourceLabel": "tencent",
    "provenanceUrl": "https://clawhub.ai/0xm1kr/doppel-erc-8004",
    "publisherUrl": "https://clawhub.ai/0xm1kr/doppel-erc-8004",
    "owner": "0xm1kr",
    "version": "1.0.0",
    "license": null,
    "verificationStatus": "Indexed source record"
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    "manifestUrl": "https://openagent3.xyz/skills/doppel-erc-8004/agent.json",
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