Card snapshot

This is a frozen copy of the agent's agent-card.json as we observed it at the timestamp above. We capture a new snapshot every time the card's content hash changes. Useful for: forensic drift analysis, verifying downstream callers see the right version, reproducing routing decisions made historically.

{
  "name": "New x402 Listings Feed",
  "description": "Feed of x402/L402 services newly listed on 402index.io within a caller-specified recency window. Source data is 402index.io's own free public directory.",
  "url": "https://new-x402-listings-feed-325572559480.us-central1.run.app",
  "version": "1.0.0",
  "documentationUrl": "https://new-x402-listings-feed-325572559480.us-central1.run.app/docs",
  "provider": {
    "organization": "nexus-mcp-infra",
    "url": "https://github.com/nexus-mcp-infra"
  },
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false
  },
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "additionalInterfaces": [
    {
      "url": "https://new-x402-listings-feed-325572559480.us-central1.run.app/mcp",
      "transport": "MCP"
    }
  ],
  "skills": [
    {
      "id": "nexus_new_x402_listings_feed_get_new_x402_listings",
      "name": "Get New x402 Listings",
      "description": "Services newly registered on 402index.io within a recency window (default 24h, max 7d).",
      "tags": [
        "x402",
        "l402",
        "discovery",
        "402index",
        "feed"
      ]
    }
  ],
  "metadata": {
    "protocol_note": "This service implements the Model Context Protocol (MCP) at /mcp, not A2A's own task methods. POST /new-x402-listings is charged $0.01 via x402 (Base Sepolia TESTNET, not real funds); the MCP tool is currently free -- see README. Payment settles BEFORE this handler runs: a call that 422s (invalid request body) is still charged, same as a 200. Underlying registration data is 402index.io's own free public API (https://402index.io/api-docs) -- this service does not have exclusive access to anything; its value is polling/dedup/filtering convenience over 402index's ~96k+ entry catalog, not raw data access."
  }
}