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Clearbit MCP Integration for LangGraph

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

6 functions 6 read 0 write API key auth
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Connect Clearbit to LangGraph

Run KosmoKrator integration calls from LangGraph nodes while preserving local credentials and permissions.

Use a graph node that calls the KosmoKrator CLI for deterministic steps or an MCP client for dynamic tool selection. The gateway is local, scoped to this integration, and starts with --write=deny so LangGraph can inspect read-capable tools without receiving write access by default.

Clearbit MCP Config for LangGraph

Headless CLI calls fit repeatable graph edges; MCP fits exploratory agent nodes.

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

Run the Gateway Manually

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

Why Use KosmoKrator Here

Scoped tools

Expose only Clearbit 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.

Clearbit Tools Visible to LangGraph

LangGraph sees stable MCP tool names generated from the Clearbit integration catalog.

MCP toolSource functionTypeDescription
integration__clearbit__clearbit_enrich_person clearbit.clearbit_enrich_person Read Look up a person by email address using Clearbit. Returns social profiles, employment, location, and demographic data when available.
integration__clearbit__clearbit_enrich_company clearbit.clearbit_enrich_company Read Look up a company by domain name using Clearbit. Returns company metrics, industry categorization, social profiles, and funding data when available.
integration__clearbit__clearbit_reveal clearbit.clearbit_reveal Read Identify the company and person behind an IP address using Clearbit Reveal. Returns company information and, when available, the associated person.
integration__clearbit__clearbit_prospect clearbit.clearbit_prospect Read Find people by job title and/or company name using Clearbit Prospecting. Returns names, titles, and email addresses when available.
integration__clearbit__clearbit_list_autocomplete clearbit.clearbit_list_autocomplete Read Search for companies by name using Clearbit Autocomplete. Returns a list of matching companies with domains, logos, and descriptions. Useful for type-ahead search.
integration__clearbit__clearbit_get_current_user clearbit.clearbit_get_current_user Read Get the authenticated user's Clearbit account information. Useful for verifying API credentials and checking plan details.

Related Clearbit Pages

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