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Developer API

Google keyword data, in your own code

A simple REST API for search volume, CPC, competition and keyword ideas. $0.20 per 1,000 keywords, credits that never expire, and a free sandbox to build against.

Request API accessOpen API Settings

Request

curl https://app.kwseverywhere.com/api/developer/v1/keywords/metrics \
  -H "Authorization: Bearer kws_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{"keywords": ["seo tools", "keyword research"], "location": "US"}'

Response

{
  "request_id": "01k…",
  "credits_used": 2,
  "credits_remaining": 99998,
  "data": [
    {
      "keyword": "seo tools",
      "search_volume": 15760,
      "cpc": { "low": 1.11, "high": 1.67, "average": 1.39, "currency": "USD" },
      "competition": "MEDIUM",
      "competition_index": 42,
      "monthly_searches": [{ "year": 2026, "month": 8, "searches": 16080 }, …]
    },
    …
  ]
}
Endpoints

Five endpoints, one API key

  • POST/keywords/metricsSearch volume, CPC and competition for up to 1,000 keywords per request.1 credit / keyword
  • POST/keywords/ideasKeyword ideas for seed keywords or a URL, sorted by volume, CPC or competition.1 credit / keyword
  • GET/accountYour credit balance, mode and limits.Free
  • GET/locationsEvery country code the API accepts.Free
  • GET/languagesEvery language code the API accepts.Free

Base URL https://app.kwseverywhere.com/api/developer/v1 · full reference with samples in your dashboard.

Official Google Ads data

The same historical metrics advertisers budget against — CPC in USD, 12-month trend on every keyword.

Pay only for what you get

Charged per keyword returned. A failed call is refunded automatically, and ideas calls refund whatever Google did not have.

Credits never expire

Buy once and use them at your own pace. No subscription, no monthly minimum.

Free sandbox

Realistic fake data in exactly the production shape, so you can build and test before spending a credit.

Clear errors

One JSON error shape with stable codes and a request ID on every response — easy to handle, easy to support.

Works with any language

Plain HTTPS and JSON. Samples for cURL, JavaScript, Python and PHP in your dashboard.

Pricing

$0.20 per 1,000 keywords

1 credit = 1 keyword. Credits are bought separately from the passes — from 100,000 credits ($20) — and never expire. Access is set up personally: message us, and your account is ready with a free sandbox the same day.

Request on WhatsAppOther ways to reach us

Don't write code? AI Connect puts the same data inside Claude, ChatGPT and Gemini — unlimited on the Yearly pass.

API FAQ

Before you build

What is the Developer API, and how is it different?

The Developer API is for your own code: a REST endpoint with an API key, for keyword metrics and ideas in your scripts, apps or agents. It is sold separately in credits (1 credit = 1 keyword) and is not part of any pass — a free sandbox lets you build against it first. AI Connect is the no-code way for people; the API is for developers.

How do I buy Developer API credits?

Credits are set up personally: open Dashboard → Developer API, pick an amount and message us on WhatsApp. Credits never expire. See the Developer API page for current pricing.

Start with a 7-day free trial

Unlimited keyword research, live Google SERP metric injection and batch Ahrefs DR checks — no per-keyword credits, and no subscription to cancel.

Start free trialSee passes & pricing