{
  "protocolVersion": "1.0",
  "name": "0n1x",
  "description": "The neutral trust layer for AI agents. 0n1x issues cryptographically signed facts — identity, rank, and verify-before-you-pay verdicts on counterparties — that anyone can recompute from public data. Neutral by design: it earns nothing from what it grades (payTo key != grader key).",
  "version": "1.0.0",
  "url": "https://0n1xagntc.com",
  "documentationUrl": "https://0n1xagntc.com/mint-spec.html",
  "preferredTransport": "JSONRPC",
  "provider": {
    "organization": "0n1x",
    "url": "https://0n1xagntc.com"
  },
  "iconUrl": "https://0n1xagntc.com/favicon.svg",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": true
  },
  "defaultInputModes": ["text/plain", "application/json"],
  "defaultOutputModes": ["application/json"],
  "skills": [
    {
      "id": "verify-before-pay",
      "name": "Verify a counterparty before you pay",
      "description": "Return a signed PROCEED / REVIEW / HOLD verdict on a merchant, agent, or claim BEFORE an agent settles a payment. Payment rails verify the payment; 0n1x verifies the thing being paid for (Know Your Counterparty).",
      "tags": ["verification", "payments", "x402", "trust", "KYC-agent"],
      "examples": [
        "Is example-merchant.com a real counterparty and is this price honest?",
        "Verify agent did:pkh:eip155:8453:0x... before I transact with it."
      ]
    },
    {
      "id": "census-read",
      "name": "Read the signed agent census",
      "description": "Query the Merkle-rooted registry of agent identities. Every entry is EIP-191 signed; the count is recomputable from public shards. Read the live count from census_manifest.json — never a hardcoded number.",
      "tags": ["registry", "census", "merkle", "identity"],
      "examples": ["Return the current census merkle root and count.", "Is did:pkh:eip155:8453:0x... a registered citizen?"]
    },
    {
      "id": "facts",
      "name": "Canonical signed facts",
      "description": "Definitions and current figures as signed, citable facts rather than assertions. 0n1x signs facts, not judgments.",
      "tags": ["facts", "attestation", "citation"],
      "examples": ["What is 'verify before you pay' per 0n1x?"]
    },
    {
      "id": "ai-news",
      "name": "0n1x AI News — verified agent-economy news",
      "description": "The verified news brief on agentic standards, payments, and identity. Every claim is sourced; where a claim can't be sourced, it doesn't run. Machine-readable, Ed25519-SIGNED feed at https://0n1xagntc.com/news.json — an agent can fetch, verify the signature against the embedded public key, and cite it. The first AI news feed an agent can cryptographically verify.",
      "tags": ["news", "intelligence", "standards", "signed-feed"],
      "resourceUrl": "https://0n1xagntc.com/news.json",
      "examples": ["What changed in the MCP 2026-07-28 spec?", "Give me the signed news feed."]
    }
  ],
  "securitySchemes": {
    "x402": {
      "type": "http",
      "scheme": "x402",
      "description": "Metered access via HTTP 402 Payment Required. Pay USDC on Base per request; receive a signed verdict. payTo (treasury) is a DIFFERENT key from the grader that signs the verdict, so the payee cannot tilt the result."
    }
  },
  "security": [{ "x402": [] }],
  "additionalInterfaces": [
    { "transport": "JSONRPC", "url": "https://0n1xagntc.com" }
  ],
  "x-0n1x": {
    "note": "This is 0n1x's own A2A v1.0 Agent Card (CARD-1 rendering #3). It is currently UNSIGNED (v0): the AgentCardSignature (JWS, JCS-canonicalized per RFC 8785) is reserved and will be added by the 0n1x attest key. Per-citizen cards countersigned by 0n1x — with skills_verified (feed-evidence-backed) kept strictly separate from skills_declared — are the next CARD-1 rendering.",
    "spec": "https://0n1xagntc.com/mint-spec.html",
    "erc8004": "identity registry pointer reserved for 0n1x deployment on Base",
    "neutrality": "payTo != grader",
    "signatureStatus": "reserved"
  }
}