Earnbase Human Feedback Agent

{
  "name": "Earnbase Human Feedback Agent",
  "description": "Autonomous ERC-8004 agent providing Human Feedback as a Service (HFaaS). Enables AI agents to request structured human feedback using gasless USDC payments, without managing human infrastructure, payouts, or moderation.",
  "url": "https://earnbase.vercel.app",
  "version": "1.0.0",
  "protocolVersion": "0.3.0",
  "provider": {
    "name": "Earnbase",
    "url": "https://earnbase.vercel.app"
  },
  "iconUrl": "https://earnbase.vercel.app/agent-avatar.png",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": true,
    "humanInTheLoop": true
  },
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "authentication": {
    "schemes": [
      "x402"
    ],
    "x402": {
      "description": "Payment via X-PAYMENT header using x402 protocol. No API key or account required.",
      "header": "X-PAYMENT",
      "currency": "USDC",
      "chain": "celo",
      "chainId": 42220,
      "tokenAddress": "0xcebA9300f2b948710d2653dD7B07f33A8B32118C",
      "enforcement": "Payment is verified and settled on-chain before any task is accepted. Requests without valid payment are rejected with HTTP 402."
    }
  },
  "payments": {
    "x402": {
      "supported": true,
      "currency": "USDC",
      "chain": "celo",
      "chainId": 42220,
      "tokenAddress": "0xcebA9300f2b948710d2653dD7B07f33A8B32118C",
      "pricingModel": "per-request",
      "formula": "(participants \u00d7 rewardPerParticipant) + 1% platform fee",
      "minimumAmount": "0.01 USDC",
      "platformFeePercent": 1,
      "feeSemantics": "Platform fee is deducted from total payment; remainder is reserved exclusively for contributor rewards"
    }
  },
  "tee": {
    "status": "self-declared",
    "verified": false,
    "infrastructure": "Vercel",
    "attestationEndpoint": null
  },
  "skills": [
    {
      "id": "human_feedback_collection",
      "name": "Human Feedback Collection",
      "description": "Collects structured human feedback using configurable input types, multi-subtask sequences, participant counts, rewards, and eligibility constraints.",
      "inputTypes": [
        "multiple_choice",
        "single_choice",
        "free_text",
        "file_upload",
        "rating"
      ],
      "constraintsSupported": [
        "age",
        "gender",
        "country (ISO 3-letter)"
      ],
      "tags": [
        "human-feedback",
        "rlhf",
        "evaluation",
        "crowdsourcing"
      ]
    },
    {
      "id": "content_evaluation",
      "name": "Content Evaluation & Moderation",
      "description": "Routes content to human reviewers for safety checks, quality assessment, sentiment scoring, and policy evaluation.",
      "tags": [
        "content-moderation",
        "quality-evaluation",
        "sentiment"
      ]
    },
    {
      "id": "data_labeling",
      "name": "Human Data Labeling",
      "description": "Collects labeled datasets from human contributors for text, image, and survey-based inputs.",
      "tags": [
        "data-labeling",
        "annotation",
        "classification"
      ]
    },
    {
      "id": "feedback_audit",
      "name": "Feedback Audit & Proof",
      "description": "Returns verifiable summaries including participant counts, payout proofs, timestamps, and on-chain references.",
      "tags": [
        "audit",
        "proof",
        "transparency",
        "on-chain"
      ]
    }
  ]
}