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Google Autocomplete via Serper
x402
Google Autocomplete via Serper is a paid API for AI agents from x402.orthogonal.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-29).
Returns search query suggestions based on a prefix, powered by Google Autocomplete, for keyword research, SEO, and search-ahead UIs.
Price / call$0.002
Success—
StatusUnknown
How this service works
Google Autocomplete - returns search query suggestions based on a prefix. Use for keyword research, SEO, understanding search intent, or building search-ahead UIs.
Output
A list of Google Autocomplete query suggestions matching the provided prefix, optionally scoped by country, language, and location. Returns the same suggestions a user would see in Google's search box.
Example use cases
SEO keyword expansion for content
“Give me all the Google autocomplete suggestions for 'intermittent fasting' in the US in English — I want to find long-tail keyword ideas for a new blog post.”
Localized search-ahead for e-commerce
“What are the Google search suggestions for 'running shoes' in Germany with country code 'de' and language 'de'? I'm building a search-ahead feature for our German storefront.”
Understanding competitor search intent
“Show me the Google autocomplete suggestions for 'best project management' in English for the US — I need to understand what search intent people have around that topic.”
Technical details
Endpoint
POSThttps://x402.orthogonal.com/serper/autocomplete?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need real Google Autocomplete suggestions for a query prefix, especially for keyword research, SEO planning, understanding search intent, or building type-ahead search UIs. It supports localization via country and language codes, making it suitable for international SEO workflows. Prefer this over generic search APIs when you specifically want autocomplete/suggestion data rather than full search results.
Side effects
- Empty prefix returns no meaningful suggestions
- Invalid country or language codes may return default suggestions or errors
- Very niche or misspelled prefixes may return few or zero suggestions
- Rate limit exceeded if too many requests are made in quick succession
- Payment failure if USDC balance is insufficient for the $0.002 per-call fee
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| q | string | Search query prefix to get suggestions for |
| gl | string | Country code (e.g. us, uk, de) |
| hl | string | Language code (e.g. en, es, fr) |
| location | string | Location name for localized suggestions |
Tags
x402
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