{
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    "title": "Bulk Domain Availability Checker – RDAP, WHOIS & DNS",
    "description": "Check if domains are available or registered, in bulk, from official registry RDAP data (WHOIS/DNS fallback). Registrar and dates; unknown results are free.",
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  "components": {
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        "type": "object",
        "properties": {
          "domains": {
            "title": "Domains",
            "maxItems": 1000,
            "type": "array",
            "description": "Full domain names (example.com) or URLs; the registrable domain is extracted (shop.example.co.uk → example.co.uk). IP addresses, internal names and public suffixes such as co.uk are rejected (free).",
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              "type": "string"
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          },
          "baseNames": {
            "title": "Base names to combine with TLDs (optional)",
            "maxItems": 200,
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              "type": "string"
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          },
          "tlds": {
            "title": "TLDs for the base names (optional)",
            "maxItems": 100,
            "type": "array",
            "description": "TLDs to combine with the base names, with or without the dot: com, net, org, io, co, dev, ai, co.uk ...",
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              "type": "string"
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          },
          "maxItems": {
            "title": "Max domains per run",
            "minimum": 1,
            "maximum": 1000,
            "type": "integer",
            "description": "Upper limit on domains checked in this run (after de-duplication). Extra domains are ignored and not charged.",
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          },
          "maxConcurrency": {
            "title": "Domains checked in parallel",
            "minimum": 1,
            "maximum": 20,
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            "description": "Parallel domains across registries. Each registry server still gets only one request at a time (RDAP at least 0.5 s apart, WHOIS at least 2 s apart), with back-off on HTTP 429.",
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          },
          "useWhoisFallback": {
            "title": "Use WHOIS for TLDs without RDAP",
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          },
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          }
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              },
              "options": {
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                  "timeoutSecs": {
                    "type": "integer",
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                  },
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