FreeToolHub

{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-09-15T02:10:28.696548Z",
      "publishedAt": "2026-09-15T02:10:28.696548Z",
      "statusChangedAt": "2026-09-15T02:10:28.696548Z"
    }
  },
  "server": {
    "name": "io.github.cavan1977/freetoolhub",
    "_meta": {
      "io.modelcontextprotocol.registry/publisher-provided": {
        "tool": "manual",
        "freeTier": "50 calls/day per IP",
        "toolCount": 44,
        "categories": [
          "finance",
          "tax",
          "business",
          "developer-tools",
          "productivity",
          "ai"
        ],
        "transportNote": "Stateless, POST-only JSON-RPC. Implements initialize / tools/list / tools/call. GET returns 405 (no server-initiated SSE stream) and no Mcp-Session-Id is issued — both explicitly permitted for stateless servers by the Streamable HTTP spec. Verified end-to-end with the official @modelcontextprotocol/sdk StreamableHTTPClientTransport.",
        "protocolVersion": "2024-11-05"
      }
    },
    "title": "FreeToolHub",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "remotes": [
      {
        "url": "https://freetoolhub.org/api/mcp",
        "type": "streamable-http",
        "headers": [
          {
            "name": "X-API-Key",
            "isSecret": true,
            "description": "Optional. Free for 50 tool calls per IP per day without a key. Supply a key to lift the daily quota."
          }
        ]
      }
    ],
    "version": "2.0.0",
    "repository": {
      "url": "https://github.com/cavan1977/freetoolhub",
      "source": "github"
    },
    "websiteUrl": "https://freetoolhub.org/mcp/",
    "description": "44 calculators for AI agents: US tax, finance, business + an MCP engineering & security suite."
  }
}