{
"openapi": "3.0.1",
"info": {
"title": "Bulk Domain Availability & RDAP WHOIS Checker",
"description": "Domain availability checker API for apps and AI agents: bulk RDAP / WHOIS lookup. Compact JSON per domain: available or taken, registrar, creation and expiry dates, days to expiry, status codes, nameservers, from official registry servers. Name ideas x extensions mode. No API key.",
"version": "1.0",
"x-build-id": "EjXI77lEgED2lBAH5"
},
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{
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],
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"tags": [
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"required": true,
"content": {
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{
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"in": "query",
"required": true,
"schema": {
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},
"description": "Enter your Apify token here"
}
],
"responses": {
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"description": "OK"
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"/acts/djk12~domain-availability-rdap-checker/runs": {
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"in": "query",
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"description": "Enter your Apify token here"
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"responses": {
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"tags": [
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"required": true,
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"in": "query",
"required": true,
"schema": {
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"description": "Enter your Apify token here"
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"200": {
"description": "OK"
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}
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}
},
"components": {
"schemas": {
"inputSchema": {
"type": "object",
"properties": {
"domains": {
"title": "Domains",
"type": "array",
"description": "One domain per line, for example example.com. URLs, www. and subdomains are reduced to the registrable domain (https://shop.example.co.uk/x becomes example.co.uk). Internationalized names such as münchen.de are converted to punycode. Duplicates are checked once. Invalid entries are skipped and not charged. AI agents: pass just the few domains you need for a quick answer (each checked domain is one billed row).",
"items": {
"type": "string"
}
},
"nameStems": {
"title": "Name ideas (combined with extensions)",
"type": "array",
"description": "Optional. Brand or keyword ideas without extension, for example acmecloud. Each one is combined with every extension below, so 20 ideas x 10 extensions = 200 domains.",
"items": {
"type": "string"
}
},
"tlds": {
"title": "Extensions",
"type": "array",
"description": "Extensions to combine with the name ideas, for example com, io, ai, co, dev, co.uk. Needed when name ideas are given.",
"items": {
"type": "string"
}
},
"concurrency": {
"title": "Parallel lookups",
"minimum": 1,
"maximum": 100,
"type": "integer",
"description": "How many domains are checked at the same time overall.",
"default": 20
},
"perServerConcurrency": {
"title": "Parallel lookups per registry server",
"minimum": 1,
"maximum": 10,
"type": "integer",
"description": "Politeness limit for each registry RDAP server. Registries throttle bursts; the Actor also backs off and honours Retry-After on HTTP 429. Keep it low (2 to 4) for big lists of one extension.",
"default": 3
},
"includeRawRdap": {
"title": "Include raw RDAP JSON",
"type": "boolean",
"description": "Add the full registry answer to each row in rawRdap (large). Off by default. AI agents: leave this off to keep rows small (under 1 KB each without it).",
"default": false
}
}
},
"runsResponseSchema": {
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"properties": {
"data": {
"type": "object",
"properties": {
"id": {
"type": "string"
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"actId": {
"type": "string"
},
"userId": {
"type": "string"
},
"startedAt": {
"type": "string",
"format": "date-time",
"example": "2025-01-08T00:00:00.000Z"
},
"finishedAt": {
"type": "string",
"format": "date-time",
"example": "2025-01-08T00:00:00.000Z"
},
"status": {
"type": "string",
"example": "READY"
},
"meta": {
"type": "object",
"properties": {
"origin": {
"type": "string",
"example": "API"
},
"userAgent": {
"type": "string"
}
}
},
"stats": {
"type": "object",
"properties": {
"inputBodyLen": {
"type": "integer",
"example": 2000
},
"rebootCount": {
"type": "integer",
"example": 0
},
"restartCount": {
"type": "integer",
"example": 0
},
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"type": "integer",
"example": 0
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"computeUnits": {
"type": "integer",
"example": 0
}
}
},
"options": {
"type": "object",
"properties": {
"build": {
"type": "string",
"example": "latest"
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"timeoutSecs": {
"type": "integer",
"example": 300
},
"memoryMbytes": {
"type": "integer",
"example": 1024
},
"diskMbytes": {
"type": "integer",
"example": 2048
}
}
},
"buildId": {
"type": "string"
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"defaultKeyValueStoreId": {
"type": "string"
},
"defaultDatasetId": {
"type": "string"
},
"defaultRequestQueueId": {
"type": "string"
},
"buildNumber": {
"type": "string",
"example": "1.0.0"
},
"containerUrl": {
"type": "string"
},
"usage": {
"type": "object",
"properties": {
"ACTOR_COMPUTE_UNITS": {
"type": "integer",
"example": 0
},
"DATASET_READS": {
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},
"DATASET_WRITES": {
"type": "integer",
"example": 0
},
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"example": 0
},
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"type": "integer",
"example": 1
},
"KEY_VALUE_STORE_LISTS": {
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},
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"REQUEST_QUEUE_WRITES": {
"type": "integer",
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},
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"example": 0
},
"DATA_TRANSFER_EXTERNAL_GBYTES": {
"type": "integer",
"example": 0
},
"PROXY_RESIDENTIAL_TRANSFER_GBYTES": {
"type": "integer",
"example": 0
},
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"example": 0
}
}
},
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"example": 0.00005
},
"usageUsd": {
"type": "object",
"properties": {
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"type": "integer",
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"DATASET_READS": {
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"example": 0
},
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"type": "number",
"example": 0.00005
},
"KEY_VALUE_STORE_LISTS": {
"type": "integer",
"example": 0
},
"REQUEST_QUEUE_READS": {
"type": "integer",
"example": 0
},
"REQUEST_QUEUE_WRITES": {
"type": "integer",
"example": 0
},
"DATA_TRANSFER_INTERNAL_GBYTES": {
"type": "integer",
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"DATA_TRANSFER_EXTERNAL_GBYTES": {
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"example": 0
},
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"type": "integer",
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},
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