Coding / Developer

Cline

Cline is an open-source AI coding assistant that supports bring-your-own API keys for access to multiple models, enabling autonomous analysis and execution across an entire codebase in VS Code.

Product type: Extension / PluginPricing: UnknownAPIMaster integration: Supported

Website created

2024-09-30

OpenRouter token usage rank

Source: OpenRouter

Website Download / Install GitHub

Overview

As a developer tool, Cline primarily runs as a VS Code extension and also offers a CLI version. It handles projects by reading file structures, performing AST analysis, and executing terminal commands, while also supporting browser actions and custom tool extensions. Users can guide tasks in plan/act mode and use checkpoints to roll back changes, making it well suited for engineers working with large codebases. Unlike similar products that rely on subscriptions and limit context, Cline allows direct use of your own keys to access the full capabilities of models such as Gemini and Anthropic.

One-line summary

Cline is an open-source AI coding assistant that supports bring-your-own API keys for access to multiple models, enabling autonomous analysis and execution across an entire codebase in VS Code.

What people use it for

Users use it to refactor code, run test commands, fix errors, and verify results in the browser until the task is complete.

Best for

Developers, engineering teams, and technical leads

How it works

It typically starts by reading context in the IDE, terminal, or project environment, then the Agent plans steps, executes commands or modifies files, and the user reviews the results.

Quick facts

Product type

Extension / Plugin

Pricing

Unknown

Real-time pricing is not currently maintained for this product in the enhanced bulk dataset. Please refer to the official website or official documentation.

APIMaster integration

Supported

Cline panel → Settings → API Configuration

Data confidence

Medium

Last verified: 2026-08-30

Supported models / APIs

OpenAI-compatible APIThird-Party ProviderBYOK

Core features and differentiators

Multi-model support with bring-your-own API keys

Connect with your own keys to Google Gemini, Anthropic, OpenAI, Groq, Deepseek, Kimi, and local models such as Ollama/LMStudio, without subscription restrictions.

Full-project file structure and AST analysis

Automatically scans the entire codebase structure, performs AST parsing and regex search, and reads relevant files to understand the project architecture.

Terminal command execution and real-time monitoring

Runs terminal commands directly, monitors development server output, linter and compiler errors, and iterates based on the results.

Headless browser computer-use capabilities

Launches a headless browser to perform clicks, scrolling, and screenshots for visual debugging and functional verification.

Checkpoint snapshots and rollback

Automatically creates workspace snapshots at every step, with support for rolling back to a previous state at any time.

MCP custom tool extensions

Create and integrate custom tools through Model Context Protocol for tasks such as Jira ticket retrieval and cloud infrastructure management.

What is Cline best for?

Guide complex code refactoring

Specify refactoring goals in plan/act mode, and Cline analyzes the codebase, applies changes step by step, and adjusts in real time.

Best for：Full-stack developers

Run tests and fix errors

Execute test commands, launch browser verification, capture linter/compiler errors, then automatically fix and iterate until everything passes.

Best for：Frontend engineers

Integrate external service tools

Ask Cline to create Jira ticketing or cloud resource management tools and use them directly in the workflow.

Best for：DevOps engineers

CI/CD pipeline automation

Use headless mode in pipelines to input git diff and output code reviews or perform automated tasks.

Best for：Backend developers

Third-party key setup for Cline (APIMaster integration)

Supported

Setup steps

1Open the Cline panel and go to Settings → API Configuration.
2Set API Provider to OpenAI Compatible.
3Enter the third-party Base URL, API Key, and Model ID.
4After saving, send a minimal test message to confirm the current session is using your configured provider.

Config values

Base URL

https://apimaster.ai/v1

API key environment variable

API Key（Cline 设置项）

Model

gpt-5.5 or claude-sonnet-4-6 or Your APIMaster model ID

Create my key

Official source Official source APIMaster API docs

Community discussion

Discussion summary

Users generally understand Cline as an open-source, model-agnostic AI coding agent tool that supports environments such as the terminal and VS Code, can autonomously execute commands, fix bugs, and complete complex tasks. Discussion focuses on how to use multiple models through bring-your-own API keys, comparisons with other AI coding tools, and how to use its agentic capabilities for real development workflows. Users also frequently share experience integrating different editors, using plan/act mode, and extending custom tools.

Most discussed topics

1
Which free or cost-effective models does Cline support?
Users often discuss the real-world performance of free models from different providers in Cline and how to switch models to balance cost and results.
2
How does Cline compare with tools like Cursor and Claude Code?
Users often compare Cline's autonomous execution, context handling, and lock-in-free characteristics with other AI coding assistants.
3
How do you set up and use Cline in the terminal or in different editors?
Users share CLI installation, VS Code/JetBrains integration, and ways to use parallel agents or headless mode.
4
How do Cline's plan/act mode and checkpoint features work?
Users discuss how to design approaches with planning mode, apply changes with execution mode, and use checkpoints to safely roll back complex refactors.
5
How do you extend Cline with custom tools through MCP?
Users explore adding integrations with external tools such as Jira and cloud infrastructure to build more personalized agentic workflows.

FAQ

What type of product is Cline?

We currently classify it under the "Programming / Developer" category, and the page description is based on public information from the official website and sources such as OpenRouter.

What is Cline good for?

The enhanced Cline page prioritizes the core tasks and use cases that have already been collected, helping you quickly judge whether it matches your current needs.

Can Cline connect directly to APIMaster now?

Current information confirms that the product supports third-party keys or custom compatible endpoints, so you can continue validating directly according to the configuration instructions on the page.

Last verified: 2026-08-30 · Report a correction