{
  "name": "stockmarket-loans",
  "title": "Stockmarket Loans: broker margin rates",
  "description": "Free, read-only MCP server for US broker margin rates: each broker's published schedule (every balance tier, the base rate and the broker's printed date), a ranking of 14 brokers at any loan balance, and the interest cost of borrowing against stocks over a number of months, beside any rate you were quoted. Every result cites the broker's own rate page and a stockmarket.loans page. Not a quote or investment advice. No authentication.",
  "registryDescription": "Published US broker margin rates by tier, ranked at any balance, with borrowing-cost math.",
  "version": "1.0.0",
  "url": "https://stockmarket.loans/mcp",
  "transport": {
    "type": "streamable-http",
    "url": "https://stockmarket.loans/mcp"
  },
  "remotes": [
    {
      "type": "streamable-http",
      "url": "https://stockmarket.loans/mcp"
    }
  ],
  "authentication": {
    "type": "none",
    "required": false
  },
  "protocolVersions": [
    "2026-07-28",
    "2025-11-25",
    "2025-06-18",
    "2025-03-26",
    "2024-11-05"
  ],
  "capabilities": {
    "tools": {
      "listChanged": false
    }
  },
  "tools": [
    {
      "name": "get_margin_rates",
      "title": "Margin rates for a broker",
      "description": "One broker's published margin rate schedule: every balance tier with its annual rate and the broker's own wording for how it is set, the base rate and its date, whether tiers blend, maintenance and minimum-equity notes, the schedule date, our check date and the broker's source URL. A family name like \"Interactive Brokers\" returns each of its plans.",
      "readOnly": true
    },
    {
      "name": "compare_brokers",
      "title": "Compare broker margin rates at a balance",
      "description": "Every compared broker's published annual margin rate on one loan balance, ranked from lowest to highest (ties shared), with the tier that applies, the yearly interest at that rate, schedule dates and source links. Brokers that print no rate at that balance are listed separately with the reason.",
      "readOnly": true
    },
    {
      "name": "borrowing_cost",
      "title": "Cost of borrowing against stocks",
      "description": "What a margin loan costs over a number of months at every compared broker's published rate, as the site's margin interest calculator works it: rate, interest per month, total over the period and the extra cost versus the lowest rate, simple interest on a flat balance. Optionally adds a rate you were quoted (an SBLOC offer or a negotiated margin rate) or narrows the table to one broker.",
      "readOnly": true
    }
  ],
  "documentation": "https://stockmarket.loans/developers/",
  "websiteUrl": "https://stockmarket.loans/developers/",
  "publisher": {
    "name": "Stockmarket Loans",
    "url": "https://stockmarket.loans/",
    "contact": "hello@stockmarket.loans"
  },
  "privacyPolicy": "https://stockmarket.loans/privacy/",
  "termsOfService": "https://stockmarket.loans/terms/",
  "license": "Compilation CC BY 4.0 (credit \"Data: Stockmarket Loans (stockmarket.loans)\" with a link); rates are each broker's published figures",
  "icon": "https://stockmarket.loans/icon-512.png"
}