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x402.donnyautomation.com Search Autocomplete & Keyword Research API
x402
x402.donnyautomation.com Search Autocomplete & Keyword Research API is a paid API for AI agents from x402.donnyautomation.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-01).
Returns live Google Autocomplete suggestions for any topic, expanded across question and comparison modifiers, filtered to stay on-topic, and split into suggestions, questions, and comparisons.
Price / call$0.01
Success—
StatusUnknown
How this service works
Live Google Autocomplete for a topic, expanded across question modifiers (how, what, why, is, can, does) and comparison modifiers (vs, or), split into suggestions, questions and comparisons. Off-topic rows are dropped and counted. Requires ?q= (max 200 chars); optional ?depth=full|basic, ?country=us, ?lang=en. Errors: 400 missing_q|q_too_long|bad_depth, 504 suggest_timeout. This is DEMAND (what people type), not ranked results - for those use /search.
Output
A structured response containing three categorized lists: suggestions (direct completions of the query), questions (how, what, why, is, can, does expansions), and comparisons (vs, or expansions), plus a count of off-topic rows that were filtered out because they dropped the original term.
Example use cases
SEO content gap analysis
“Find me all the question-based and comparison searches people are doing around 'intermittent fasting' — I want to see what people are actually Googling so I can plan blog posts that answer real demand.”
Competitor comparison research
“Pull the autocomplete suggestions for 'Notion vs' and 'Notion or' to see which tools people are comparing it against in the US market.”
Localized keyword discovery
“Get me the Google autocomplete suggestions for 'home insurance' in the UK market, in English — I want the full expansion including how, what, why, and is questions.”
Technical details
Endpoint
GEThttps://x402.donnyautomation.com/suggest?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need real, live search demand data straight from Google Autocomplete rather than static keyword databases. It is especially useful when you want question and comparison variants automatically expanded and filtered, saving you from running dozens of separate API calls. Prefer it over static keyword tools when freshness and real user intent signal matter, and when you need results normalized to stay on-topic.
Side effects
- Missing required 'q' parameter returns a 400 error
- Query exceeding 200 characters may be rejected or truncated
- Invalid language or country codes may fall back to defaults or return an error
- Network timeout if Google Autocomplete upstream is slow
- No results returned for very obscure or novel queries with no search history
Output
Schema · Response
{
"type": "json",
"example": {
"ts": "2026-08-03T00:00:00.000Z",
"count": 5,
"query": "electric vehicles",
"source": "Google Autocomplete (suggestqueries)",
"questions": [
"are electric vehicles worth it",
"how long do electric vehicles last"
],
"expansions": {
"failed": 0,
"requested": 16,
"offTopicDropped": 7
},
"comparisons": [
"electric vehicles vs hybrid"
],
"suggestions": [
"electric vehicles 2026",
"electric vehicles tax credit"
]
}
}Tags
x402
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