MRR Ledger

{
  "name": "MRR Ledger",
  "description": "Read-only data agent for a sourced ledger of real AI-agent businesses. Every revenue figure has a source URL and an as-of date. Free tier; heavier use can be paid per request or per pass via x402 (USDC on Base).",
  "version": "1.16.0",
  "provider": {
    "organization": "MRR Ledger",
    "url": "https://mrrledger.com/"
  },
  "documentationUrl": "https://mrrledger.com/for-agents/",
  "iconUrl": "https://mrrledger.com/og/default.png",
  "supportedInterfaces": [
    {
      "url": "https://mrrledger.com/mcp",
      "protocolBinding": "MCP-STREAMABLE-HTTP",
      "protocolVersion": "2025-06-18"
    }
  ],
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "extendedAgentCard": false
  },
  "defaultInputModes": [
    "application/json",
    "text/plain"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "skills": [
    {
      "id": "search_businesses",
      "name": "Search businesses (start here)",
      "description": "Find AI-agent businesses by keyword, category or tier; returns briefs with sourced annualized revenue plus total and next page. Free (100 calls/day without a key).",
      "tags": [
        "search",
        "startups",
        "ai-agents"
      ],
      "examples": [
        "search_businesses {\"query\":\"support\",\"limit\":3}",
        "Which indie support agents have verified MRR?"
      ]
    },
    {
      "id": "get_business",
      "name": "Get one business profile",
      "description": "The full sourced record for one business: every dated revenue figure with its source URL, lessons, growth. Free.",
      "tags": [
        "profile",
        "revenue"
      ],
      "examples": [
        "get_business {\"slug\":\"cursor\"}"
      ]
    },
    {
      "id": "leaderboard",
      "name": "Revenue leaderboard (ranked)",
      "description": "Businesses ranked by most recent sourced annualized revenue, highest first. Free.",
      "tags": [
        "revenue",
        "ranking"
      ],
      "examples": [
        "leaderboard {\"category\":\"coding-agents\",\"limit\":5}"
      ]
    },
    {
      "id": "compare_businesses",
      "name": "Compare two businesses",
      "description": "Two businesses side by side with the revenue ratio. Free.",
      "tags": [
        "compare"
      ],
      "examples": [
        "compare_businesses {\"a\":\"cursor\",\"b\":\"lovable\"}"
      ]
    }
  ]
}