fourzerotwo
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Domain name ideas

Rule-based domain candidates for a keyword: exact, stopword-free, hyphenated, prefixed and suffixed, across chosen TLDs, with a trademark flag.

Domain name ideas Free

Rule-based domain candidates for a keyword: exact, stopword-free, hyphenated, prefixed and suffixed, across chosen TLDs, with a trademark flag.

cost
Free then $0.002 / call
MCP tool
domains__ideas
method
GET

Free up to 50 calls a day over MCP (500 with a free key), then $0.002 per call by card credit or USDC. Free key · Pay by card

GET https://fourzerotwo.si/v1/domains/ideas

ParamTypeDescription
keyword string Keyword or phrase
tlds? string Comma list of TLDs (default com,co.uk,io)
prefixes? string Comma list of prefixes
suffixes? string Comma list of suffixes
trademarks? string Comma list of brand names to flag
# free: send a free key from https://fourzerotwo.si/free
curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/domains/ideas?keyword=how%20to%20unlock%20my%20phone"

# no key: returns 402 with the price, for x402 agents
curl -i "https://fourzerotwo.si/v1/domains/ideas?keyword=how%20to%20unlock%20my%20phone"

by fourzerotwo

Report this endpoint

Use it from an AI agent (MCP)

Add the server once, then ask for this data in plain English. The agent finds the endpoint with search_apis and runs it with call_api.

{
  "mcpServers": {
    "fourzerotwo": { "type": "http", "url": "https://fourzerotwo.si/mcp" }
  }
}
# the call the agent makes
call_api {"tool": "domains__ideas", "arguments": {"keyword":"how to unlock my phone","tlds":"com,co.uk","prefixes":"get","suffixes":"hq","trademarks":"iphone,samsung"}}

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