CrakSEO Backlink Checker MCP

npx add-mcp 'https://crakseo.com/mcp/backlinks'

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.

Backlink Checker MCP: Referring Domains and Anchors

Backlink checker MCP: backlink summary, top backlinks, referring domains and anchor texts.

A backlink summary (rank, backlinks, referring domains, broken links, spam score) and the strongest backlinks with anchor text and follow status, plus referring domains and anchor text counts for any domain or URL.

Endpoint	https://crakseo.com/mcp/backlinks
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 auditing a site's link profile, vetting a link partner or comparing link profiles against competitors.

Connect

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

Use crakseo-backlinks as the server name and https://crakseo.com/mcp/backlinks 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
check_backlinks	Check backlinks	TBD (placeholder)
get_referring_domains	Referring domains	TBD (placeholder)
get_backlink_anchors	Backlink anchor texts	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.

check_backlinks

Check backlinks. Backlink checker: total backlinks, referring domains, domain rank, spam score and the strongest backlinks (one per domain) for any domain or URL. 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
target	string	Yes	Domain (example.com) or full page URL (https://example.com/page) to analyze.
limit	integer	No	How many top backlinks to list, 1 to 100. Default 25.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "check_backlinks",
    "arguments": {
      "target": "example.com",
      "limit": 1
    }
  }
}

{
  "result": {
    "target": "example.com",
    "summary": {
      "rank": 0,
      "backlinks": 0,
      "referringDomains": 0,
      "referringMainDomains": 0,
      "brokenBacklinks": 0,
      "spamScore": 0
    },
    "backlinks": [
      {
        "from": "https://referrer.example/post",
        "to": "https://example.com/",
        "anchor": "example anchor",
        "dofollow": true,
        "domainRank": 0,
        "firstSeen": "2026-01-15"
      }
    ]
  },
  "billing": {
    "channel": "credits",
    "chargedMicros": 0,
    "chargedUsd": 0,
    "cacheHit": false,
    "balanceMicros": 0
  }
}

get_referring_domains

Referring domains. Referring domains: the domains linking to a domain or URL, with their rank, backlink count, spam score and first-seen date, strongest first. 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
target	string	Yes	Domain (example.com) or full page URL (https://example.com/page) to analyze.
limit	integer	No	How many referring domains to list, 1 to 500. Default 100.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_referring_domains",
    "arguments": {
      "target": "example.com",
      "limit": 1
    }
  }
}

{
  "result": {
    "target": "example.com",
    "totalCount": 0,
    "domains": [
      {
        "domain": "referrer.example",
        "rank": 0,
        "backlinks": 0,
        "spamScore": 0,
        "firstSeen": "2026-01-15"
      }
    ]
  },
  "billing": {
    "channel": "credits",
    "chargedMicros": 0,
    "chargedUsd": 0,
    "cacheHit": false,
    "balanceMicros": 0
  }
}

get_backlink_anchors

Backlink anchor texts. Backlink anchor texts: the anchors used in links to a domain or URL, with backlink and referring-domain counts per anchor. 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
target	string	Yes	Domain (example.com) or full page URL (https://example.com/page) to analyze.
limit	integer	No	How many anchors to list, 1 to 500. Default 100.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_backlink_anchors",
    "arguments": {
      "target": "example.com",
      "limit": 1
    }
  }
}

{
  "result": {
    "target": "example.com",
    "totalCount": 0,
    "anchors": [
      {
        "anchor": "example anchor",
        "backlinks": 0,
        "referringDomains": 0
      }
    ]
  },
  "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/backlinks.

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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