KosmoKrator

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Fly.io MCP Integration for LangChain

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

7 functions 6 read 1 write Bearer token auth
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Connect Fly.io 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.

Fly.io MCP Config for LangChain

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

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

Run the Gateway Manually

kosmokrator mcp:serve --integration=fly-io --write=deny

Why Use KosmoKrator Here

Scoped tools

Expose only Fly.io 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.

Fly.io Tools Visible to LangChain

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

MCP toolSource functionTypeDescription
integration__fly_io__fly_io_list_apps fly-io.fly_io_list_apps Read List all Fly.io apps in the organization. Returns app names, IDs, status, and network details.
integration__fly_io__fly_io_get_app fly-io.fly_io_get_app Read Get details for a specific Fly.io app, including status, network, and machine count.
integration__fly_io__fly_io_create_app fly-io.fly_io_create_app Write Create a new Fly.io app. Requires an app name and optionally an organization ID.
integration__fly_io__fly_io_list_machines fly-io.fly_io_list_machines Read List all machines for a Fly.io app. Returns machine IDs, state, region, and configuration.
integration__fly_io__fly_io_get_machine fly-io.fly_io_get_machine Read Get details for a specific Fly.io machine, including its state, config, and region.
integration__fly_io__fly_io_list_volumes fly-io.fly_io_list_volumes Read List all persistent volumes for a Fly.io app. Returns volume IDs, name, size, and region.
integration__fly_io__fly_io_get_current_user fly-io.fly_io_get_current_user Read Get the current authenticated Fly.io user information, including email and account details.

Related Fly.io Pages

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