Google Ads Keyword Ideas & Expansion API: AI Large Language Models

Expand seed keywords into Google Ads keyword ideas with volume and CPC data. Try free — pay per generation, no subscription.

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Overview

About this model

Keywords for Keywords expands a small set of seed keywords into a larger list of related keyword ideas using the same recommendation engine Google Ads uses inside its own Keyword Planner. Each idea returned includes search volume, competition, and CPC so you can shortlist opportunities without manually cross-referencing a separate volume lookup. It is well suited to early-stage campaign or content research, where the goal is to widen a narrow seed list into dozens of concrete, fundable terms.

1Campaign ideation: Turn 2-3 core product keywords into a broad list of biddable Google Ads terms.

2SEO content planning: Discover long-tail variations worth targeting with dedicated landing pages.

3Competitor keyword discovery: Feed a competitor's brand or product terms in as seeds to surface adjacent demand.

4Budget forecasting: Use returned CPC and volume together to estimate spend for a new keyword set.

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Pricing & Value

Cost analysis

Provider	Cost	Notes
muapiapp	From $0.01 per query	Google Ads keyword expansion with volume and CPC metrics included.
Fal.ai	Not available	Not offered as a standalone API.
Replicate	Not available	Not offered as a standalone API.

muapiappFrom $0.01 per query

Google Ads keyword expansion with volume and CPC metrics included.

Fal.aiNot available

Not offered as a standalone API.

ReplicateNot available

Not offered as a standalone API.

** Competitor pricing is estimated based on similar model architectures and usage tiers.

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Technical Details

Configuration schema

Parameter	Type	Description	Default
Keywords	array	List of seed keywords to expand.	`seo tools`
Location	Enum (213 options)	Country to target for the search.	`United States`
Language	Enum (129 options)	Language to search in.	`English`
Limit	integer	Number of keyword ideas to return.	`10`

Keywordsarray

List of seed keywords to expand.

Default Valueseo tools

LocationEnum (213 options)

Country to target for the search.

Default ValueUnited States

LanguageEnum (129 options)

Language to search in.

Default ValueEnglish

Limitinteger

Number of keyword ideas to return.

Default Value10

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Implementation Guide

Developer documentation

How to Use Keywords for Keywords

Provide seed keywords: Pass a keywords array of your starting terms.
Set market targeting: Choose location and language (default United States / English).
Set the result limit: Use limit (default 10) to control how many keyword ideas come back.
Read the response: Each idea includes search volume, competition level, and CPC bid range.

curl -X POST https://api.muapi.ai/api/v1/seo-keywords-for-keywords \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "keywords": ["seo tools", "keyword research"],
    "location": "United States",
    "language": "English",
    "limit": 20
  }'

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Common Questions

Frequently asked

How is this different from Keywords Search Volume?

Search Volume looks up metrics for keywords you already have; Keywords for Keywords generates new keyword ideas from seed terms using Google Ads' own expansion algorithm.

How many keyword ideas are returned?

Configurable via `limit`, from 1 to 100 suggestions per request.

Can I submit multiple seed keywords at once?

Yes, `keywords` accepts an array so you can combine several seeds in one call.

What data comes back for each idea?

Search volume, competition level, competition index, and low/high CPC bid estimates, matching the Keywords Search Volume response shape.

Can I target a specific country or language?

Yes, `location` and `language` control market targeting for both the ideas and their metrics.