{
  "name": "audit.domains",
  "description": "Deterministic domain name valuation with recorded comparable sales, and public certificate verification. Start with the free static surfaces: every published name has its figures at https://audit.domains/domain/{name}/index.json (no key, no credit, no server computation; the published names are the /domain/ URLs in https://audit.domains/sitemap.xml). For any other name, the hosted MCP server in supportedInterfaces answers without a key with a cached result, the catalog figure, or a report link where the engine runs in the reader's browser. Only a fresh server-side appraisal is metered: it needs an ad_live_ API key and spends one API credit. This card is discovery only: audit.domains does not run an A2A task endpoint, and every skill below is an MCP tool.",
  "version": "1.5.0",
  "provider": {
    "organization": "audit.domains",
    "url": "https://audit.domains"
  },
  "documentationUrl": "https://audit.domains/llms.txt",
  "iconUrl": "https://audit.domains/icon-512.png",
  "supportedInterfaces": [
    {
      "url": "https://audit.domains/mcp",
      "protocolBinding": "MCP-STREAMABLE-HTTP",
      "protocolVersion": "2025-06-18"
    }
  ],
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "extensions": [
      {
        "uri": "https://audit.domains/.well-known/api-catalog",
        "description": "Discovery links for this service: the RFC 9727 API catalog, the MCP server card, the agent skills index, llms.txt and the sitemap.",
        "required": false,
        "params": {
          "mcpServerCard": "https://audit.domains/.well-known/mcp/server-card.json",
          "apiCatalog": "https://audit.domains/.well-known/api-catalog",
          "agentSkills": "https://audit.domains/.well-known/agent-skills/index.json",
          "llmsTxt": "https://audit.domains/llms.txt",
          "sitemap": "https://audit.domains/sitemap.xml"
        }
      }
    ]
  },
  "securitySchemes": {},
  "defaultInputModes": [
    "application/json",
    "text/plain"
  ],
  "defaultOutputModes": [
    "application/json",
    "text/plain"
  ],
  "skills": [
    {
      "id": "appraise_domain",
      "name": "Appraise a domain name",
      "description": "Deterministic fair value with a published low/high interval, scored factors and the closest recorded comparable sales. The same name always returns the same figure. Free for a published name at https://audit.domains/domain/{name}/index.json. MCP tool appraise_domain: without a key it returns a cached result, the catalog figure or a report link; a fresh server run needs an ad_live_ key and spends one credit.",
      "tags": [
        "domains",
        "valuation",
        "appraisal"
      ],
      "examples": [
        "What is example.com worth?"
      ]
    },
    {
      "id": "compare_domains",
      "name": "Compare and rank domain names",
      "description": "Appraise and rank up to 10 names, stating which orderings the method cannot separate. MCP tool compare_domains, keyed and keyless like appraise_domain. Free in the reader's browser: https://audit.domains/compare/?names=a.com,b.io",
      "tags": [
        "domains",
        "valuation",
        "ranking"
      ],
      "examples": [
        "Rank alpha.com, beta.io and gamma.ai by value."
      ]
    },
    {
      "id": "run_bracket",
      "name": "Pick the best of several names",
      "description": "Single-elimination bracket over up to 8 names decided by appraised value. Ordinal result. MCP tool run_bracket. Free in the reader's browser for 2-16 names: https://audit.domains/bracket/?names=a.com,b.io",
      "tags": [
        "domains",
        "naming",
        "bracket"
      ],
      "examples": [
        "Which of these five candidate names should we register?"
      ]
    },
    {
      "id": "find_comparable_sales",
      "name": "Find comparable recorded sales",
      "description": "The five recorded domain sales closest to a given name, each price as a range. MCP tool find_comparable_sales.",
      "tags": [
        "domains",
        "sales",
        "comparables"
      ],
      "examples": [
        "What did names like crypto.io sell for?"
      ]
    },
    {
      "id": "search_recorded_sales",
      "name": "Search recorded domain sales",
      "description": "Search a fixed free public sample of the curated corpus of real recorded sales by keyword, TLD, price, year or venue. MCP tool search_recorded_sales.",
      "tags": [
        "domains",
        "sales",
        "search"
      ],
      "examples": [
        "Top recorded .io sales since 2020."
      ]
    },
    {
      "id": "verify_certificate",
      "name": "Verify an audit.domains certificate",
      "description": "Recompute a certificate's SHA-256 digest offline and ask the issuer whether its signature reproduces. Returns machine reason codes and the evidence for each step. MCP tool verify_certificate.",
      "tags": [
        "certificates",
        "verification",
        "integrity"
      ],
      "examples": [
        "Verify https://audit.domains/verify/<serial>?p=<token>"
      ]
    }
  ]
}