naulon

{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-11-11T08:13:48.453534Z",
      "publishedAt": "2026-11-11T08:13:48.453534Z",
      "statusChangedAt": "2026-11-11T08:13:48.453534Z"
    }
  },
  "server": {
    "name": "app.naulon/naulon",
    "icons": [
      {
        "src": "https://naulon.app/icon.svg",
        "sizes": [
          "any"
        ],
        "mimeType": "image/svg+xml"
      },
      {
        "src": "https://naulon.app/brand-kit/naulon-tile-512.png",
        "sizes": [
          "512x512"
        ],
        "mimeType": "image/png"
      }
    ],
    "title": "naulon",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "remotes": [
      {
        "url": "https://gate.naulon.app/_naulon/mcp/public",
        "type": "streamable-http"
      }
    ],
    "version": "1.0.1",
    "packages": [
      {
        "version": "0.7.9",
        "transport": {
          "type": "stdio"
        },
        "identifier": "@naulon/wayfarer-mcp",
        "runtimeHint": "npx",
        "registryType": "npm",
        "environmentVariables": [
          {
            "name": "PAYMENT_MODE",
            "choices": [
              "mock",
              "gateway"
            ],
            "default": "mock",
            "description": "Set to gateway to pay real tolls in USDC over Circle Gateway on Arc. Unset, settlement is mocked and nothing is spent."
          },
          {
            "name": "BUYER_PRIVATE_KEY",
            "isSecret": true,
            "description": "Private key of the wallet tolls are paid from. Needed only with PAYMENT_MODE=gateway. It stays on your machine."
          },
          {
            "name": "TOLLGATE_URL",
            "description": "The one gate every payment resolves against, for buying from a single publisher."
          },
          {
            "name": "WAYFARER_ALLOW_DOMAINS",
            "description": "Comma-separated publisher hosts the server may pay. Replaces the single-gate pin, so one server can buy from several publishers."
          },
          {
            "name": "WAYFARER_BUDGET_USDC",
            "format": "number",
            "description": "Spend ceiling for the session, in USDC. The model cannot raise it."
          }
        ]
      }
    ],
    "repository": {
      "url": "https://github.com/naulonapp/naulon",
      "source": "github",
      "subfolder": "packages/wayfarer-mcp"
    },
    "websiteUrl": "https://naulon.app",
    "description": "Check citations and retractions by DOI, and see the x402 price an AI agent pays to cite a source."
  }
}