CrakSEO Keyword Research MCP

npx add-mcp 'https://crakseo.com/mcp/keyword-research'

Agent Instructions

For SEO data and indexing, start with /seo-mcp/overview.md and /seo-mcp/connect.md, then read the focused server reference. The documentation search MCP at https://docs.crakseo.com/mcp searches documentation only. Product tools use https://crakseo.com/mcp/. Check tool availability and API credit balance before paid calls. Request owner approval for paid indexing. Never invent prices, indexing guarantees or directory approval.

Keyword Research MCP: Search Volume, CPC, Keyword Difficulty

Keyword research MCP: search volume, CPC, keyword difficulty and keyword ideas by country.

Monthly search volume, CPC, competition, keyword difficulty and intent for any keyword and country, keyword ideas from seed terms, and the keywords a competitor ranks for that you don't.

Endpoint	https://crakseo.com/mcp/keyword-research
Transport	Streamable HTTP
Sign-in	OAuth, or an API key as a bearer token
Scopes	seo-data:read
Billing	Pay as you go (API credits)

When to use

Use when planning content, sizing demand for a niche or choosing which keywords to target.

Connect

claude mcp add --transport http crakseo-keyword-research https://crakseo.com/mcp/keyword-research

Use crakseo-keyword-research as the server name and https://crakseo.com/mcp/keyword-research as the URL. Run /mcp in Claude Code to authenticate. For OAuth, scoped API keys and a free test, follow Connect and test.

Other clients: ChatGPT, Cursor, Codex, VS Code, Cline, Gemini CLI, Grok and Muse.

Connect using the URL above; no registry ID or marketplace listing is required.

Verify without spending

Use CrakSEO get_api_credit_balance to report my balance and dataCallsEnabled. Do not buy credits or make a paid call.

Tools

Tool	What it does	Price per call
get_keyword_search_volume	Keyword search volume, CPC and difficulty	TBD (placeholder)
find_keyword_ideas	Find keyword ideas	TBD (placeholder)
get_keyword_difficulty	Keyword difficulty	TBD (placeholder)
find_competitor_keywords	Find competitor keywords (keyword gap)	TBD (placeholder)
get_api_credit_balance	API credit balance	Free

[!NOTE]

Tool names, titles and parameters on this page match the server's tools/list response, which stays authoritative. Example values are placeholders, not real measurements. Prices marked TBD are set at launch on API credits.

get_keyword_search_volume

Keyword search volume, CPC and difficulty. Keyword search volume, CPC and difficulty for up to 200 keywords in any country: monthly Google searches, cost per click, competition, keyword difficulty, intent and the last 12 months trend. Costs API credits per call.

• Price per call: TBD (placeholder)
• Annotations: read-only, idempotent
• Limits: Results are cached for 24 hours. Failed calls are free.

Parameter	Type	Required	Description
keywords	string[]	Yes	Up to 200 keywords.
country	string	No	Two-letter country code of the search market, for example US, GB, DE or IN. Default US.
language	string	No	Language code of the search market, for example en, de or pt-BR. Default en.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_keyword_search_volume",
    "arguments": {
      "keywords": [
        "seo mcp"
      ],
      "country": "US"
    }
  }
}

{
  "result": {
    "keywords": [
      {
        "keyword": "seo mcp",
        "searchVolume": 0,
        "cpc": 0,
        "competition": 0,
        "keywordDifficulty": 0,
        "intent": "commercial",
        "trend": [
          {
            "month": "2026-09",
            "searchVolume": 0
          }
        ]
      }
    ]
  },
  "billing": {
    "channel": "credits",
    "chargedMicros": 0,
    "chargedUsd": 0,
    "cacheHit": false,
    "balanceMicros": 0
  }
}

find_keyword_ideas

Find keyword ideas. Keyword ideas: related keywords for up to 20 seed keywords with search volume, CPC, difficulty and intent, sorted by search volume. Costs API credits per call.

• Price per call: TBD (placeholder)
• Annotations: read-only, idempotent
• Limits: Results are cached for 24 hours. Failed calls are free.

Parameter	Type	Required	Description
seeds	string[]	Yes	Up to 20 seed keywords that describe the topic.
country	string	No	Two-letter country code of the search market, for example US, GB, DE or IN. Default US.
language	string	No	Language code of the search market, for example en, de or pt-BR. Default en.
limit	integer	No	How many ideas to return, 10 to 500. Default 100.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "find_keyword_ideas",
    "arguments": {
      "seeds": [
        "trail running shoes"
      ],
      "country": "US",
      "limit": 10
    }
  }
}

{
  "result": {
    "ideas": [
      {
        "keyword": "trail running shoes for women",
        "searchVolume": 0,
        "cpc": 0,
        "competition": 0,
        "keywordDifficulty": 0,
        "intent": "commercial"
      }
    ]
  },
  "billing": {
    "channel": "credits",
    "chargedMicros": 0,
    "chargedUsd": 0,
    "cacheHit": false,
    "balanceMicros": 0
  }
}

get_keyword_difficulty

Keyword difficulty. Keyword difficulty: how hard it is to rank organically in Google for up to 500 keywords, scored 0 to 100. Costs API credits per call.

• Price per call: TBD (placeholder)
• Annotations: read-only, idempotent
• Limits: Results are cached for 24 hours. Failed calls are free.

Parameter	Type	Required	Description
keywords	string[]	Yes	Up to 500 keywords.
country	string	No	Two-letter country code of the search market, for example US, GB, DE or IN. Default US.
language	string	No	Language code of the search market, for example en, de or pt-BR. Default en.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_keyword_difficulty",
    "arguments": {
      "keywords": [
        "serp api"
      ],
      "country": "US"
    }
  }
}

{
  "result": {
    "keywords": [
      {
        "keyword": "serp api",
        "keywordDifficulty": 0
      }
    ]
  },
  "billing": {
    "channel": "credits",
    "chargedMicros": 0,
    "chargedUsd": 0,
    "cacheHit": false,
    "balanceMicros": 0
  }
}

find_competitor_keywords

Find competitor keywords (keyword gap). Competitor keywords: keywords a competitor domain ranks for in Google that your domain does not, with search volume, difficulty and the competitor's position. Costs API credits per call.

• Price per call: TBD (placeholder)
• Annotations: read-only, idempotent
• Limits: Results are cached for 24 hours. Failed calls are free.

Parameter	Type	Required	Description
competitor	string	Yes	Competitor domain, for example competitor.com.
yourDomain	string	Yes	Your domain, for example example.com.
country	string	No	Two-letter country code of the search market, for example US, GB, DE or IN. Default US.
language	string	No	Language code of the search market, for example en, de or pt-BR. Default en.
limit	integer	No	How many keywords to return, 10 to 1000. Default 100.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "find_competitor_keywords",
    "arguments": {
      "competitor": "competitor.example",
      "yourDomain": "example.com",
      "limit": 10
    }
  }
}

{
  "result": {
    "competitor": "competitor.example",
    "yourDomain": "example.com",
    "keywords": [
      {
        "keyword": "example keyword",
        "searchVolume": 0,
        "keywordDifficulty": 0,
        "competitorPosition": 4,
        "competitorUrl": "https://competitor.example/page"
      }
    ]
  },
  "billing": {
    "channel": "credits",
    "chargedMicros": 0,
    "chargedUsd": 0,
    "cacheHit": false,
    "balanceMicros": 0
  }
}

get_api_credit_balance

API credit balance. API credit balance: prepaid credits left for SEO data calls, amount spent, whether spending is suspended, and the per-call pricing rule. Free; no supplier call.

• Price per call: Free
• Annotations: read-only, idempotent
• Limits: Free; reads the wallet only.

Parameter	Type	Required	Description

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_api_credit_balance",
    "arguments": {}
  }
}

{
  "availableMicros": 0,
  "availableUsd": 0,
  "spentMicros": 0,
  "frozen": false,
  "dataCallsEnabled": true,
  "pricing": {
    "creditMarkup": 0,
    "minimumPerCallUsd": 0
  }
}

Errors

Code	Meaning	What to do
insufficient_credits	The API credits wallet can't cover the call's maximum price.	Add credits at https://crakseo.com/app/indexing/credits, then retry the same call. The failed call isn't charged.
forbidden	The connection doesn't have the scope this tool needs, for example seo-data:read or console:write.	Reconnect and grant the scope named in the message, or use an API key that has it.
not_connected	Google Search Console or Bing Webmaster Tools isn't connected, or no connected property covers the URL.	Open the connect link in the message and sign in with the account that owns the property.
invalid_input	A parameter is missing or out of range.	Read the message, which names the field, fix the argument and retry.
confirmation_required	A paid indexing submission doesn't have the account owner's approval for this exact quote.	submit_indexing_urls returns status: "needs_confirmation" with a confirmationUrl. Send the owner there to approve, then retry with the same quoteId and idempotencyKey. The agent can't approve spend.
wallet_frozen	API credit spending is suspended on this account after a refund or dispute.	Contact support@crakseo.com.
budget_exceeded	The account's daily API credit spending limit, or the service's daily data budget, is used up.	Retry tomorrow.
disabled	SEO data calls aren't switched on for this deployment yet.	Use the free Search Console and URL indexing tools meanwhile. get_api_credit_balance reports dataCallsEnabled.
supplier_unavailable	The data supplier couldn't be reached or is rate limiting.	Retry later. Failed data calls are free.
supplier_unknown	The data supplier didn't answer in time or sent an unreadable response.	Retry later. Failed data calls are free.
supplier_error	The data supplier refused the request or returned no data.	Check the arguments (for example the location name) and retry. Failed data calls are free.

Technical registry details

Intended MCP Registry ID: com.crakseo/keyword-research.

The namespace com.crakseo is the reverse-domain form of crakseo.com, used to identify the publisher. It is not a website address, product name or connection URL. You do not need it to connect.

This identifier is recorded in our publishing drafts, not a claim of registry acceptance or directory approval.

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