How much does the Google Autocomplete API cost?

0.5 credits per call, so $0.12 to $0.50 per 1,000 calls depending on the pack.

How many suggestions come back?

Whatever Google shows for that prefix, usually up to 10.

Can I get suggestions for another country?

Yes. Set country and language, for example country=de and language=de for German suggestions in Germany.

Can I batch many prefixes?

Yes. POST /v1/batches with endpoint: "autocomplete" and up to 100 requests runs them in the half-price batch lane.

POST /v1/autocomplete

Google Autocomplete API

The suggestions Google shows as someone types, for any prefix, country and language. Half a credit per call, built for keyword research and query expansion.

Get a free API key Try in playground

0.5 credits per call 2,500 free credits, no card Failed calls are free

Overview

What the Google Autocomplete API does

The Google Autocomplete API returns Google's type-ahead suggestions for a partial query. It's the cheapest way to see how real people phrase searches in a market.

At 0.5 credits per call it's priced for volume: expand a seed keyword with every letter of the alphabet ("how to learn a", "how to learn b"…) for 13 credits.

What you get

suggestions[] array: Each item has a value: the full suggested query.
request object: Echo of the normalized request (endpoint, engine, q, country, language, page…), handy for logging.
meta object: request_id, credits_used, cached, engine, latency_ms, resolved_urls and parse_quality. parse_quality=empty means the call was not billed.

Request

POST /v1/autocomplete

cURL

Python

TypeScript

fetch

PHP

curl https://api.serpkite.com/v1/autocomplete \
  -H "Authorization: Bearer $SERPKITE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"q":"how to learn","country":"us"}'

Response (illustrative, placeholder domains)

200 OK · application/json

{
  "request": {
    "endpoint": "autocomplete",
    "engine": "google",
    "q": "how to learn",
    "country": "us",
    "language": "en"
  },
  "results": [
    {
      "value": "how to learn python"
    },
    {
      "value": "how to learn spanish"
    },
    {
      "value": "how to learn piano"
    },
    {
      "value": "how to learn to code"
    },
    {
      "value": "how to learn guitar"
    }
  ],
  "meta": {
    "request_id": "req_01J8ZK4M6Q2V7",
    "credits_used": 0.5,
    "engine": "google",
    "cached": false,
    "latency_ms": 812,
    "resolved_urls": true,
    "parse_quality": "ok"
  }
}

Every response also carries X-Credits-Used, X-Credits-Remaining, X-Cache and X-Tokens-Estimate headers. Run this query in the playground

Reference

Parameters

The parameters /v1/autocomplete accepts, in the JSON body or the query string.

Google Autocomplete API parameters
Name	Type	Default	Description
`q` required	string	–	The search query. Required. Up to 2,048 characters.
`country`	string	us	Country to search from, as a two-letter ISO code (us, gb, de, in…).
`language`	string	en	Interface language, as a language code (en, de, fr, pt-BR…).
`format`	string	json	Response format. markdown is LLM-ready prose; compact is JSON with only the fields agents need. Values: json, compact, markdown.

Full reference, error codes and headers are in the API docs. Send a JSON array of up to 100 request objects to run them in one call.

Use cases

What people build with the Google Autocomplete API

Keyword research

Expand seed terms into long-tail keywords real users type.

Agent query expansion

Turn a vague question into the specific queries people actually search.

Market localization

Compare suggestions across countries and languages before you translate content.

Trend spotting

New suggestions appearing for a prefix are an early demand signal.

Pricing