FreeToolHub

{
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "name": "io.github.cavan1977/freetoolhub",
  "description": "44 calculators for AI agents: US tax, finance, business + an MCP engineering & security suite.",
  "title": "FreeToolHub",
  "repository": {
    "url": "https://github.com/cavan1977/freetoolhub",
    "source": "github"
  },
  "version": "2.0.0",
  "websiteUrl": "https://freetoolhub.org/mcp/",
  "remotes": [
    {
      "type": "streamable-http",
      "url": "https://freetoolhub.org/api/mcp",
      "headers": [
        {
          "description": "Optional. Free for 50 tool calls per IP per day without a key. Supply a key to lift the daily quota.",
          "isSecret": true,
          "name": "X-API-Key"
        }
      ]
    }
  ],
  "_meta": {
    "io.modelcontextprotocol.registry/publisher-provided": {
      "categories": [
        "finance",
        "tax",
        "business",
        "developer-tools",
        "productivity",
        "ai"
      ],
      "freeTier": "50 calls/day per IP",
      "protocolVersion": "2024-11-05",
      "tool": "manual",
      "toolCount": 44,
      "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."
    }
  }
}