KosmoKrator

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Vultr MCP Integration for LangGraph

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

7 functions 7 read 0 write Bearer token auth
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Connect Vultr 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.

Vultr MCP Config for LangGraph

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

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

Run the Gateway Manually

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

Why Use KosmoKrator Here

Scoped tools

Expose only Vultr 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.

Vultr Tools Visible to LangGraph

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

MCP toolSource functionTypeDescription
integration__vultr__vultr_list_instances vultr.vultr_list_instances Read List all compute instances in the Vultr account. Returns IDs, labels, status, plan, region, and IP addresses.
integration__vultr__vultr_get_instance vultr.vultr_get_instance Read Get details for a specific Vultr compute instance by ID. Returns full instance information including IP addresses, plan, region, and OS.
integration__vultr__vultr_list_plans vultr.vultr_list_plans Read List all available hosting plans in Vultr. Returns plan IDs, pricing, vCPU, RAM, disk, and bandwidth details.
integration__vultr__vultr_list_regions vultr.vultr_list_regions Read List all available data center regions in Vultr. Returns region IDs, city, country, and continent information.
integration__vultr__vultr_list_snapshots vultr.vultr_list_snapshots Read List all snapshots in the Vultr account. Returns snapshot IDs, descriptions, sizes, creation dates, and status.
integration__vultr__vultr_list_ssh_keys vultr.vultr_list_ssh_keys Read List all SSH keys in the Vultr account. Returns key IDs, names, and creation dates.
integration__vultr__vultr_get_current_user vultr.vultr_get_current_user Read Get information about the current authenticated Vultr account, including email, name, and balance.

Related Vultr Pages

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