DevelopersIntegrationsJetBrains AI Assistant

JetBrains AI Assistant with ARK

Add ARK as an OpenAI-compatible provider and use open models in AI Chat and JetBrains' agents, with tools from your MCP servers.

By JetBrainsProprietaryVendor docs

JetBrains AI Assistant: The AI chat, code generation and agent host in JetBrains IDEs such as IntelliJ IDEA, PyCharm and WebStorm.

Before you start

You need an ARK API key: sign in to ARK Cloud and copy it from the dashboard, or use a key from your own ARK deployment and its base URL. The examples use arklabsai/Qwen3.6-35B-A3B; for the hardest tasks use arklabsai/Qwen3.5-122B-A10B. Both call tools and read up to 256K tokens.

1. Install

Use a JetBrains IDE with AI Assistant 2026.2 or later. Models from your own provider work without a JetBrains AI subscription, though some features may be unavailable with them.

2. Connect it to ARK

Open Settings | Tools | AI Assistant | Providers & API keys, add an OpenAI-compatible provider under Third-party AI providers and fill in:

AI Assistant settings
Provider       OpenAI-compatible
URL            https://api.ark-labs.cloud/api/v1
API Key        your-ark-api-key
Tool calling   on

Click Test Connection, then Apply. ARK models then appear in AI Chat; assign them to other features under Models Assignment, and pick them in the model selector of compatible agents.

Good to know

  • Turn on Tool calling so ARK models can call tools from your MCP servers.
  • Organizations managed through JetBrains IDE Services may turn third-party providers off.
  • Code completion while you type needs a fill-in-the-middle endpoint, which ARK does not serve: use ARK for chat and agent work.
  • Agents offer tools on every request, and while tools are offered the Qwen models answer without thinking (see Reasoning).
  • These tools send the whole conversation on every turn, so they use ARK statelessly. ARK's prompt cache speeds up the repeated part of each prompt; every prompt token is still billed.

Next

Read about tool calling and limits and capacity on ARK, or browse other integrations.

Configuration keys follow JetBrains AI Assistant's official documentation as of October 2026. If the tool has changed since, its docs take precedence.