Keyword ideas, keyword research

$0.01 per call · failed calls are never charged · no account or subscription: pay per call with a card key or USDC

Keyword ideas for SEO and ads: the search phrases real users type for a seed keyword, from Google, Bing, YouTube, Amazon and DuckDuckGo autocomplete, deduplicated and ranked by how many engines suggest each, with question and buying-intent phrases listed apart. deep=true adds the Google long tail (seed + a-z, how, what, best, vs), up to 200 keywords. Use to plan content, find long-tail and question keywords, or name a product. No search volumes.

Guide: Keyword research API, keyword ideas

Run it free (25 free calls) Buy credits by card (from $1) Example result (JSON)

Try it with your own inputs

Seed keyword or topic, 2-80 characters

Uses one of your 25 free calls. Nothing is charged, and a call that fails is not counted.

Inputs

NameTypeDescription
seed (required)stringSeed keyword or topic, 2-80 characters
deepstringtrue to add the Google long tail (seed + each letter, question words); about 30 more lookups
enginesstringOptional comma list: google, bing, youtube, amazon, duckduckgo (default all)
langstringLanguage code (default en)
countrystringCountry code (default us)

Request

Over HTTP, with a card key from /credits:

curl -H "Authorization: Bearer adt_…" "https://agent-data-tools.revmesh2074.workers.dev/keywords/ideas?seed=crm%20software"

Or one of your 25 free calls, no key:

curl "https://agent-data-tools.revmesh2074.workers.dev/keywords/ideas?seed=crm%20software&trial=1"

Without a key, the same URL answers 402 Payment Required with x402 and MPP terms, so an agent with a wallet pays per call in USDC (Base, Polygon, Arbitrum or Solana over x402; Base or Tempo over MPP) and retries.

Example result

{
  "seed": "crm software",
  "lang": "en",
  "country": "us",
  "deep": false,
  "enginesAnswered": [
    "google",
    "bing",
    "duckduckgo"
  ],
  "enginesFailed": [],
  "count": 2,
  "keywords": [
    {
      "keyword": "crm software free",
      "engines": [
        "google",
        "bing",
        "duckduckgo"
      ],
      "engineCount": 3,
      "words": 3,
      "question": false,
      "commercial": true
    },
    {
      "keyword": "crm software meaning",
      "engines": [
        "google",
        "bing"
      ],
      "engineCount": 2,
      "words": 3,
      "question": false,
      "commercial": false
    }
  ],
  "questions": [],
  "commercial": [
    "crm software free"
  ],
  "note": "Phrases real users type, from search-engine autocomplete. engineCount is a popularity signal, not a search volume.",
  "checkedAt": "2026-11-05T19:30:00.000Z"
}

From an AI agent (MCP)

Add the MCP server to Claude, Cursor or any MCP client. This tool is keywords_ideas, and the first 25 successful calls are free:

https://agent-data-tools.revmesh2074.workers.dev/mcp

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