Northflank is a PaaS that allows you to run persistent sandboxes either on the Northflank infrastructure or your GCP/AWS. You can read more about it here.

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Installation

First, install the Northflank provider package: 
npm install @vibe-kit/northflank

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How to use

To use Northflank with VibeKit, you need to configure Northflank when creating a new VibeKit instance. Note that you must create a new project and API key in the Northflank dashboard.

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Using the provider directly

import { VibeKit } from "@vibe-kit/sdk";
import { createNorthflankProvider } from "@vibe-kit/northflank";

const northflankProvider = createNorthflankProvider({
  apiKey: process.env.NORTHFLANK_API_KEY!,
  projectId: "your-project-id",
  billingPlan: "nf-compute-200", // Optional: 2 vCPU & 4096GB RAM
  persistentVolumeStorage: 10240, // Optional: 10GiB
});

const vibeKit = new VibeKit()
  .withAgent({
    type: "claude",
    provider: "anthropic",
    apiKey: process.env.ANTHROPIC_API_KEY!,
    model: "claude-sonnet-4-20250514",
  })
  .withSandbox(northflankProvider);

// Generate code
const result = await vibeKit.generateCode({ 
  prompt: "Create a React application", 
  mode: "ask" 
});

// Get host URL (if applicable)
const host = await vibeKit.getHost(3000);

// Clean up
await vibeKit.kill();

​
Using configuration object

import { VibeKit, VibeConfig } from "@vibe-kit/sdk";

const config: VibeConfig = {
  ...,
  environment: {
    northflank: {
      // Required Northflank API key
      apiKey: "nf_****",
      // Optional custom image to override the inferred agent sandbox image
      image: "your-custom-image",
      // Optional project ID corresponding to the project you created
      projectId: "your-project-id",
      // Optional billing plan determining CPU & RAM (default: nf-compute-200 - 2 vCPU & 4096GB RAM)
      billingPlan: "nf-compute-200",
      // Optional persistent volume size in MB (default: 10240 - 10GiB)
      persistentVolumeStorage: 10240
    },
  },
};

​
Configuration Options

  • apiKey (required): The API token you generated in the Northflank dashboard for authentication
  • image (optional): Override the inferred agent sandbox image with a custom image
  • projectId (optional): The project name you created in the Northflank dashboard
  • billingPlan (optional): Determines the CPU & RAM of the sandboxes (default: nf-compute-200 which has 2 vCPU & 4096GB RAM)
  • persistentVolumeStorage (optional): The persistent volume size in MB (default: 10240 for 10GiB)

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ENV variables and secrets

You can use environment variables for your Northflank configuration: 
NORTHFLANK_API_KEY=your_northflank_api_key_here
Then reference them in your code: 
const northflankProvider = createNorthflankProvider({
  apiKey: process.env.NORTHFLANK_API_KEY!,
  projectId: "your-project-id",
});