Docs /Getting Started/Cline

Cline

Configure Featherless AI's extensive catalog of open-source models in Cline. Access DeepSeek, Qwen, and other high-performance models through an OpenAI-compatible API.

Overview

Cline is a powerful, open-source AI coding assistant that transforms your VS Code into an intelligent development environment. By integrating with Featherless AI's extensive model catalog, Cline gains access to over 11,900+ cutting-edge open-source models, enabling you to choose the perfect AI companion for your coding tasks.

Key Benefits

🤖 Autonomous Coding Agent - Cline can read, write, and modify files across your entire workspace

🔄 Model Flexibility - Switch between specialized coding models, reasoning engines, or general-purpose LLMs on demand

💡 Natural Language Control - Describe complex tasks in plain English and watch Cline execute them

🛠️ Full Development Lifecycle - From architecture planning to implementation and debugging

Prerequisites

Before you begin, ensure you have:

  • Visual Studio Code installed

  • Cline extension installed from the VS Code marketplace

  • A Featherless AI account (view pricing)

Getting Started

Step 1: Install Cline Extension

  1. Open VS Code Extensions

    • Press Ctrl+Shift+X (Windows/Linux) or Cmd+Shift+X (macOS)

    • Search for "Cline"

  2. Install the Extension

    • Click "Install" on the Cline extension

    • Wait for installation to complete

  3. Verify Installation

    • Look for the Cline icon in your VS Code activity bar (sidebar)

Step 2: Obtain Your Featherless API Key

  1. Visit Featherless AI: Navigate to https://featherless.ai

  2. Create or Sign Into Your Account: Click "Sign Up" for new users or "Sign In" for existing accounts

  3. Access API Keys Section:

    • Navigate to your account dashboard

    • Find the API Keys section

  4. Generate New Key:

    • Click "Create New API Key"

    • Name it descriptively (e.g., "Cline Integration")

    • Click "Generate"

  5. Save Your Key: ⚠️ Important: Copy the API key immediately and store it securely. It will only be displayed once.

Step 3: Choose Your Model

Visit the Featherless Model Catalog to explore available options. Consider these factors:

  • Task Type: Coding, reasoning, or general assistance

  • Context Window: Larger for complex projects

  • Response Speed: Balance between capability and latency

  • Specialization: Domain-specific models for better results

Configuration

Setting Up Cline with Featherless

  1. Open Cline Settings

    • Click the Cline icon in the VS Code sidebar

    • Click the settings gear icon (⚙️) in the Cline panel

  2. Configure API Connection

    Setting

    Value

    API Provider

    Featherless

    API Key

    Your Featherless API key

    Model ID

    Model ID from catalog (e.g., openai/o1-2024-12-17)

  3. Optional Settings

    • Max Tokens: Adjust based on expected response length

    • Temperature: Control creativity vs. consistency (0.0-1.0)

  4. Save and Test

    • Click "Save" to apply settings

    • Test with a simple prompt like "Hello, can you see my workspace?"

🏆 Top Coding Models

Qwen 3 Coder Series

Model IDs:

  • qwen/qwen-3-coder-480B-instruct

  • Specialized for code generation and analysis

  • Supports multiple programming languages

  • Efficient context utilization

🧠 Advanced Reasoning Models

DeepSeek R1 Series

Model ID: deepseek-ai/DeepSeek-R1-0528

  • Built-in reasoning with <think> tags

  • Ideal for architectural decisions

  • Step-by-step problem solving

  • Context: ~32K tokens

DeepSeek V3

Model ID: deepseek-ai/DeepSeek-V3-0324

  • General-purpose powerhouse

  • Excellent for varied coding tasks

  • Strong instruction following

  • Context: ~32K tokens

Instruction-Following Models

  • moonshotai/Kimi-K2-Instruct

    • Balanced general-purpose model

    • Good at following complex instructions

    • Context: ~32K tokens

  • openai/gpt-oss-120b

    • Large parameter count for nuanced understanding

    • Versatile across different tasks

    • Context: ~32K tokens

Troubleshooting

Common Issues and Solutions

Issue

Possible Cause

Solution

Connection Failed

Invalid API key

Verify key is copied correctly without spaces

Model Not Found

Incorrect model ID

Check exact spelling from model catalog

Slow Responses

Large context/complex task

Reduce context window or use faster model

Incomplete Output

Token limit reached

Increase max output tokens setting

Authentication Error

Expired/revoked key

Generate new API key from dashboard

Debug Checklist

  1. API key is active and correctly entered

  2. Base URL includes /v1 suffix

  3. Model ID matches catalog exactly (case-sensitive)

  4. Network connection is stable

  5. Cline extension is up to date

  6. VS Code has necessary permissions

Best Practices

1. Project Setup

  • Initialize with Context: Start each session by describing your project

  • Set Boundaries: Tell Cline which files/folders to focus on

  • Define Standards: Specify coding conventions upfront

2. Collaborative Workflow

  • Review Changes: Always review Cline's modifications

  • Incremental Updates: Make changes in small batches

  • Version Control: Commit before major Cline operations

3. Performance Optimization

  • Model Selection: Match model to task complexity

  • Context Pruning: Clear chat when switching topics

  • Focused Requests: Be specific about scope

4. Security Considerations

  • Never share API keys in code

  • Review generated code for security issues

  • Be cautious with file system operations

  • Validate external API calls

FAQ

Q: Can Cline execute terminal commands with Featherless models? A: Yes! Cline can execute commands when properly configured, regardless of the model provider.

Q: How do I know which model Cline is currently using? A: Check the Cline settings panel or look for the model name in the chat interface.

Q: Can I use different models for different projects? A: Absolutely! Simply update the model ID in settings when switching projects.

Q: Does Cline work with local files when using Featherless? A: Yes, Cline operates on your local workspace. Featherless only provides the AI reasoning.

Q: What's the context window limit? A: It varies by model. Check the specific model's page in the Featherless catalog.

Q: Can I use Cline offline with Featherless? A: No, Featherless requires an internet connection for API calls.

Additional Resources


Ready to supercharge your development workflow? Install Cline, grab your Featherless API key, and experience the future of AI-assisted coding today!

Last edited: Aug 28, 2025