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Ahrefs MCP Integration for LangChain

Connect Ahrefs to LangChain through the local KosmoKrator MCP gateway with scoped tools, credentials, and write policy.

7 functions 7 read 0 write API key auth
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Connect Ahrefs to LangChain

Bridge LangChain agents to local KosmoKrator integration tools through MCP or headless CLI calls.

Use the MCP gateway when the agent should discover tools, or wrap kosmo integrations:call for fixed chains. The gateway is local, scoped to this integration, and starts with --write=deny so LangChain can inspect read-capable tools without receiving write access by default.

Ahrefs MCP Config for LangChain

Keep the gateway scoped to the integration and operation class needed by the chain.

{
  "mcpServers": {
    "kosmokrator-ahrefs": {
      "type": "stdio",
      "command": "kosmo",
      "args": [
        "mcp:serve",
        "--integration=ahrefs",
        "--write=deny"
      ]
    }
  }
}

Run the Gateway Manually

kosmokrator mcp:serve --integration=ahrefs --write=deny

Why Use KosmoKrator Here

Scoped tools

Expose only Ahrefs instead of a broad multi-service tool list.

Local credentials

Reuse credentials already configured for the KosmoKrator CLI and Lua runtime.

Write policy

Start read-only, then opt into ask or allow for trusted workspaces.

Ahrefs Tools Visible to LangChain

LangChain sees stable MCP tool names generated from the Ahrefs integration catalog.

MCP toolSource functionTypeDescription
integration__ahrefs__ahrefs_list_backlinks ahrefs.ahrefs_list_backlinks Read List backlinks pointing to a target website or URL. Use this to analyze a site's link profile, find linking pages, anchor texts, and backlink quality metrics.
integration__ahrefs__ahrefs_list_referring_domains ahrefs.ahrefs_list_referring_domains Read List referring domains that link to a target website. Shows domain-level metrics like domain rating (DR), the number of backlinks from each domain, and first/last seen dates.
integration__ahrefs__ahrefs_list_organic_keywords ahrefs.ahrefs_list_organic_keywords Read List organic keywords that a target website or URL ranks for in search results. Returns keyword, position, search volume, traffic, keyword difficulty, and the ranking URL.
integration__ahrefs__ahrefs_list_pages ahrefs.ahrefs_list_pages Read List top pages for a target website ranked by traffic or other metrics. Returns page URLs along with traffic data, keyword counts, and backlink information.
integration__ahrefs__ahrefs_list_paid_keywords ahrefs.ahrefs_list_paid_keywords Read List paid (PPC) keywords that a target website bids on in search advertising. Returns keyword, position, search volume, CPC, traffic, and the landing page URL.
integration__ahrefs__ahrefs_list_anchors ahrefs.ahrefs_list_anchors Read List anchor texts used in backlinks pointing to a target website. Shows anchor text distribution, the number of referring pages using each anchor, and backlink counts.
integration__ahrefs__ahrefs_get_current_user ahrefs.ahrefs_get_current_user Read Get the authenticated Ahrefs user's profile information. Returns account details like name, email, and subscription plan. Use this to verify API connectivity.

Related Ahrefs Pages

Ahrefs CLIUse direct JSON commands instead of MCP discovery. Ahrefs MCPFull gateway reference and MCP tool names. KosmoKrator for LangChainClient-level gateway setup.