{
  "offer": "Paid API keys from $19/month (Prospector: 100,000 domain lookups a month); free tier 1000 domain lookups a day per IP with no key. Buy: https://linkheft-api.cybermaxtools.com/buy/prospector?s=lead · all plans: https://linkheft-api.cybermaxtools.com/docs#pricing",
  "name": "linkheft-api",
  "title": "Linkheft API by CyberMax",
  "version": "1.0.0",
  "description": "Paid API keys from $19/month (Prospector: 100,000 domain lookups a month); free tier 1000 domain lookups a day per IP with no key. Buy: https://linkheft-api.cybermaxtools.com/buy/prospector?s=lead · all plans: https://linkheft-api.cybermaxtools.com/docs#pricing. Bulk domain authority API: for up to 50 domains per call, a 0-100 authority score, the Common Crawl web-graph harmonic and PageRank ranks, host count, previous rank and trend (rising/stable/falling), Majestic Million rank, referring subnets and IPs, and found true/false. Open data (Common Crawl + Majestic Million), 10,296,726 domains. REST + MCP server.",
  "transport": {
    "type": "streamable-http",
    "url": "https://linkheft-api.cybermaxtools.com/mcp"
  },
  "authentication": {
    "required": false,
    "optional": {
      "type": "bearer",
      "header": "Authorization",
      "note": "Paid API key for higher limits: https://linkheft-api.cybermaxtools.com/docs#pricing"
    }
  },
  "tools": [
    {
      "name": "domain_authority",
      "title": "Domain authority (bulk)",
      "description": "Authority score (0-100), Common Crawl web-graph rank (harmonic + PageRank), hosts, previous rank and trend, Majestic Million rank, referring subnets and IPs for 1-50 domains, URLs or emails. found=false when a domain is outside the top 10M and the Majestic Million."
    },
    {
      "name": "dataset_info",
      "title": "Data release",
      "description": "The Common Crawl web-graph release, Majestic Million date, as-of date and size of the data behind domain_authority."
    }
  ],
  "documentation": "https://linkheft-api.cybermaxtools.com/",
  "openapi": "https://linkheft-api.cybermaxtools.com/openapi.json",
  "publisher": {
    "name": "CyberMax",
    "url": "https://cybermax-tools-cybermax.static.hf.space/"
  },
  "pricing": {
    "api": "Linkheft API",
    "currency": "USD",
    "free": {
      "price": 0,
      "callsPerDayPerIp": 1000,
      "perMinutePerIp": 10,
      "key": "none needed"
    },
    "plans": [
      {
        "id": "prospector",
        "name": "Prospector",
        "price": 19,
        "billing": "per month",
        "calls": 100000,
        "per": "calendar month (UTC)",
        "perMinute": 30,
        "buy": "https://linkheft-api.cybermaxtools.com/buy/prospector?s=mcpcard"
      },
      {
        "id": "agency",
        "name": "Agency",
        "price": 49,
        "billing": "per month",
        "calls": 500000,
        "per": "calendar month (UTC)",
        "perMinute": 60,
        "buy": "https://linkheft-api.cybermaxtools.com/buy/agency?s=mcpcard"
      },
      {
        "id": "platform",
        "name": "Platform",
        "price": 99,
        "billing": "per month",
        "calls": 2000000,
        "per": "calendar month (UTC)",
        "perMinute": 120,
        "buy": "https://linkheft-api.cybermaxtools.com/buy/platform?s=mcpcard"
      },
      {
        "id": "payg",
        "name": "Pay as you go",
        "price": 5,
        "billing": "one-time",
        "calls": 25000,
        "per": "until used",
        "perMinute": 30,
        "buy": "https://linkheft-api.cybermaxtools.com/buy/payg?s=mcpcard"
      },
      {
        "id": "prospector-yearly",
        "name": "Prospector yearly",
        "price": 190,
        "billing": "per year",
        "calls": 100000,
        "per": "calendar month (UTC)",
        "perMinute": 30,
        "buy": "https://linkheft-api.cybermaxtools.com/buy/prospector-yearly?s=mcpcard"
      },
      {
        "id": "agency-yearly",
        "name": "Agency yearly",
        "price": 490,
        "billing": "per year",
        "calls": 500000,
        "per": "calendar month (UTC)",
        "perMinute": 60,
        "buy": "https://linkheft-api.cybermaxtools.com/buy/agency-yearly?s=mcpcard"
      },
      {
        "id": "platform-yearly",
        "name": "Platform yearly",
        "price": 990,
        "billing": "per year",
        "calls": 2000000,
        "per": "calendar month (UTC)",
        "perMinute": 120,
        "buy": "https://linkheft-api.cybermaxtools.com/buy/platform-yearly?s=mcpcard"
      }
    ],
    "unit": "domain lookups",
    "howToUse": {
      "header": "x-api-key: YOUR_KEY",
      "alt": [
        "Authorization: Bearer YOUR_KEY",
        "?key=YOUR_KEY"
      ],
      "mcp": "send the key as Authorization: Bearer YOUR_KEY",
      "usage": "https://linkheft-api.cybermaxtools.com/key"
    },
    "manageKey": "https://linkheft-api.cybermaxtools.com/manage",
    "allAccess": {
      "name": "CyberMax API All-Access",
      "apis": 15,
      "url": "https://api-all-access.cybermaxtools.com/?s=mcpcard-linkheft-api",
      "plans": [
        {
          "id": "all-access",
          "price": 119,
          "billing": "per month",
          "callsHere": 100000,
          "per": "calendar month (UTC)"
        },
        {
          "id": "all-access-pack",
          "price": 32,
          "billing": "one-time",
          "callsHere": 25000,
          "per": "until used"
        }
      ],
      "note": "One key for every CyberMax API; Linkheft counts it separately."
    },
    "payments": "Stripe Checkout: card, Apple Pay, Google Pay, Link. Prices are in USD; where your country charges VAT or sales tax, Stripe adds it at checkout and shows it before you pay. Cancel any time at https://linkheft-api.cybermaxtools.com/manage.",
    "x402": {
      "protocol": "x402",
      "versions": [
        1,
        2
      ],
      "scheme": "exact",
      "network": [
        "base",
        "eip155:8453"
      ],
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "currency": "USDC",
      "price": {
        "perUnitUsd": 0.0002,
        "unit": "domain",
        "minUsd": 0.002,
        "maxUsd": 0.01
      },
      "payPerCallEndpoints": [
        "https://linkheft-api.cybermaxtools.com/x402/api/rank"
      ],
      "alsoOn": "the plain endpoints answer 402 with the same terms once the free daily quota is used up (no key sent)",
      "headers": {
        "request": [
          "X-PAYMENT (v1)",
          "PAYMENT-SIGNATURE (v2)"
        ],
        "response": [
          "X-PAYMENT-RESPONSE",
          "PAYMENT-RESPONSE"
        ]
      },
      "mcp": "send the X-PAYMENT header on the /mcp POST once the free tier is used up"
    }
  }
}