The Google Autocomplete API returns the suggestions the search box would drop down for a seed query — the real completions Google serves, each with its relevance score and type — as structured rows. Type proxy ser as the seed and you get 'proxy server', 'proxy service', 'proxy server list' and the rest, ranked as Google ranks them.
This is the single-seed primitive: one call to Google's autocomplete endpoint, up to 20 suggestions back, no browser involved. If what you want is a whole keyword universe — the seed run against a to z, question words, prepositions and comparisons — that is a different job, and the keyword research API is built for it. Reach for this one when you need the exact, low-latency completions for a specific prefix, at a fraction of a cent each.
$0.0002 per delivered suggestion, up to 20 suggestions per run. Nothing delivered means nothing charged.
You send a query — the partial or full seed — plus optional country and lang, and an optional max_results up to 20. The collector calls Google's autocomplete endpoint once through an exit in the country you named and returns the suggestions verbatim.
Two things are worth knowing:
country sets the exit and Google's gl, lang sets hl. The same seed in us/en and de/de returns different lists.relevance and type (QUERY, ENTITY…) exactly as returned, so you can keep the order the box would show rather than re-sorting blind.query is the only required field — the seed to complete. country and lang localise the suggestions (exit geo plus Google's gl/hl); leaving them off uses the default pool. max_results caps delivery at 20, the length of a single autocomplete response.
One row per suggestion. suggestion is the completed query, relevance is Google's score when present, type is the suggestion kind, and seed echoes the input so a table of many runs stays self-describing. Nothing is de-duplicated or re-ranked — the order is Google's.
$0.0002 per delivered suggestion ($0.20 per 1,000). Nothing delivered means nothing charged, and the $2 monthly free credit covers roughly 10,000 suggestions here. Volume tiers take up to 30% off.
$0.0002 per delivered suggestion, $0.20 per 1,000 — the cheapest row on the menu. A single seed returns at most 20 suggestions, so a probe costs well under a cent. Expanding one seed across a full alphabet run is where the numbers add up, and that is the keyword research collector's job, not this one's.
The $2 monthly allowance (no card) covers roughly 10,000 delivered suggestions, and volume tiers take up to 30% off. GET /v1/scraper/collectors reports your key's live price.
Google does not publish an official autocomplete API for developers. Autocomplete exists to serve Google's own search box; the endpoint behind it is undocumented and unsupported, and it is not part of the paid Custom Search product. Teams that want completions programmatically end up calling that endpoint directly and hoping its shape holds.
This collector calls the same surface but hands you a stable, typed result and a per-row price, and it rotates the exit so a burst of probes does not get your own IP throttled. It does not pretend to add search volume or CPC — those numbers are not in autocomplete, and inventing them would be a different product built on guesswork.
One autocomplete call is easy. Doing it thousands of times, per locale, without tripping a rate limit is the part that bites:
hl parameter.suggestion/relevance/type is boilerplate you would otherwise own forever.Prefer to keep your own client? Point it at our SERP API and the rest of the search collectors under one key, or run it over our exits directly.
Feed a product prefix and read what Google thinks users mean by it. The ranked suggestion list is a fast proxy for the real query intent behind a term.
Sanity-check a seed here for a fraction of a cent before committing it to a full alphabet run in the keyword research collector — cheap triage that stops you expanding a dead term.
Run the same seed across country/lang pairs to see how a market actually phrases a need, which is often not the literal translation you would guess.
One call per run, up to 20 suggestions — that is the size of a single autocomplete response, not a throttle we add. For bulk expansion (a to z, questions, prepositions, comparisons) use the keyword research API, which orchestrates hundreds of these probes and de-duplicates. Runs parallelise up to your plan's rate limit — 60 a minute on pay-as-you-go, up to 1,200 on the top tier. Autocomplete carries no search-volume or cost data, and this collector will not fabricate any.
Legally: autocomplete responses are public, and reading public data is broadly lawful, but Google's terms restrict automated access and specifics vary by jurisdiction. Background, not legal advice.
$2 of usage a month with no card, which at $0.0002 per suggestion is about 10,000 delivered suggestions. Google ships no official autocomplete API, free or paid, so there is no first-party allowance to compare it against.
No — your QuantumProxies API key is the only credential. There is no Google Cloud project or OAuth step, because the autocomplete endpoint is not a registered Google product you can hold a key for.
This is the single-seed primitive: one seed, one call, up to 20 raw suggestions. The keyword research API runs that probe across the alphabet, question words and comparisons and merges the results into a de-duplicated keyword set. Use this for a quick look, that for a full map.
No. Autocomplete returns suggestions with Google's relevance score and type, not monthly search volume or CPC. Those come from a different data source; we return what the endpoint actually provides rather than an estimate dressed up as a fact.