SEO API, priced per result

Keyword, competitor, backlink and AI-visibility data as REST endpoints and MCP tools, with every price on one page.

The short answer

One Apify API token gives you every endpoint below, billed per result on one invoice with no subscription. Each tool is a REST endpoint with an OpenAPI spec, a typed MCP tool for AI agents, and a node in n8n, Make and Zapier.

Endpoints and prices

	What you get	Price (Free plan tier)
Keyword Search Volume	Search volume, CPC, competition, 12-month history (Keyword Planner data)	$0.0043 per keyword
Keyword Difficulty Checker	Keyword difficulty 0-100 and search intent	$0.005 per keyword
Keyword Research Tool	Keyword ideas with volume, KD, intent and SERP features	$0.003 per keyword
Competitor Keywords	Every keyword a domain ranks for, with position and traffic	$0.002 per ranked keyword
Domain Authority & Traffic	Domain rank, backlinks, referring domains, organic traffic	$0.005 per domain
SEO Toolkit	Domain overview, ranked keywords, competitors, top pages, backlinks, live SERPs behind one tool parameter	$0.003 per row
People Also Ask Scraper	People Also Ask questions, related searches, AI Overview text	$0.0055 per keyword
Autocomplete Keyword Expander	Google and YouTube autocomplete long-tail ideas	$0.001 per keyword idea
AI Search Visibility Tracker	Brand mentions and citations in ChatGPT, Perplexity, Gemini, AI Overviews	$0.04 per prompt per engine

Prices are read from Apify when this page is built. Paid Apify plans get lower tiers. The keyword-volume price includes its per-request fee spread over 1,000 keywords. Some tools add a small per-request or per-lookup fee (SEO Toolkit, Competitor Keywords, the metrics add-on of the autocomplete tool); each tool page lists every charge.

Call it from code

curl -X POST "https://api.apify.com/v2/acts/wrenfield-data~keyword-search-volume/run-sync-get-dataset-items?token=$APIFY_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"keywords": ["standing desk", "walking pad"], "location": "United States"}'

Every tool accepts maxTotalChargeUsd as a run option, so a bad loop can't run up a bill. Full developer guide: API quickstart and endpoints, OpenAPI 3.1, agent setup, llms.txt.

When a different SEO API fits better

Very high volume and you run your own integration: DataForSEO direct is cheaper per row.
You need Ahrefs DR or Semrush Authority Score by name: Ahrefs API or Semrush API.

FAQ

Is there an SEO API without a monthly subscription?

Yes. These tools bill per result through Apify with no subscription; Apify's free plan includes $5 of monthly credit. DataForSEO is prepaid with a $50 minimum top-up.

Can an AI agent use these endpoints?

Yes. Every tool is an MCP tool via mcp.apify.com, with typed inputs and outputs, so Claude, Cursor or ChatGPT can call it and pay per call.

Where does the data come from?

Keyword volumes come from the Google Ads API (Keyword Planner). Difficulty, ranked keywords, backlinks and domain metrics use licensed DataForSEO data. Autocomplete and People Also Ask come from Google's public results. Each tool page names its source.

Sources

Competitor prices are list prices (USD, monthly billing unless noted), checked Oct 22, 2026. Our prices are read from the Apify API when this page is built and are the Apify Free-plan tier; paid Apify plans get lower tiers. Vendors change prices; check the source before you buy. Trademarks belong to their owners; Wrenfield Data is not affiliated with any vendor named here.

Try it on a real list

Every tool has a prefilled example that runs for a few cents on Apify's free plan ($5 of monthly credit, no card).

Browse the tools Estimate a month