openai.yaml
# Cloud config — drop-in
provider: openai
model: "gpt-latest"
apiKey: "sk-••••••"
mcp: enabled
Eclipse IDE — Free, open-source for the AI coding era
Eclipse is a free, open developer platform that now speaks AI. Connect any large language model — cloud or local — through standard APIs and the Model Context Protocol. No lock-in, no license fee.
Free & open source. Works with OpenAI, Claude, Azure, DeepSeek, Hugging Face and Ollama.
EPL license
Vendor-neutral
No account
Windows · macOS · Linux
0+open source projects
0K+contributors
0+years of open governance
Vendor-neutralno single owner
An IDE that connects to every AI
The same trusted, open Eclipse — now built to work with whatever model you choose, however you want to run it.
Bring any LLM
OpenAI, Claude, Azure, DeepSeek, Hugging Face or local models. Add your key and switch providers without changing your workflow.
Connect a model →MCP integration
The Model Context Protocol lets agents call real tools, Git and data — not just chat. Eclipse speaks MCP out of the box.
How MCP works →Local & private
Run models on your own machine with Ollama. Your code and prompts stay local — ideal for regulated or sensitive work.
Run AI locally →Open & free
Open source under vendor-neutral governance. No license fee, no lock-in, and a framework you can extend with your own agents.
Read the guides →Agents that do the work, not just chat
With MCP, your model can act on your code, run commands and use real tools — you stay in control of what runs.
eclipse — ai terminal · model: your choice
Connect a model in three steps
Download & open
Install Eclipse free on Windows, macOS or Linux. No account, no sign-up.
Add your model
Pick a provider — OpenAI, Claude, Azure, DeepSeek, Hugging Face — or point to a local Ollama endpoint, then add your key.
Work with agents
Use AI chat and agents that act through MCP on your files, Git and tools — all inside the IDE.
Your tools shouldn't pick your AI for you. Any model, any host, fully open.
Closed assistants tie you to one vendor and one price list. Eclipse keeps the choice with you: any model, any host, fully inspectable code.
Built on Theia AI, an open framework for AI-native tools, Eclipse lets teams add their own agents, prompts and integrations — and keep ownership of the whole stack.
Explore the model supportclaude · cli
$ eclipse model add claude
✓ key saved to keychain
$ eclipse chat "refactor utils.ts"
→ editing via MCP · filesystem
✓ done — 0 errors
ollama · local
$ ollama pull llama
▓▓▓▓▓▓▓▓▓▓ 100%
$ eclipse model use local
✓ offline · no key · no cloud
# data stays on device
Start building with any AI — free now!
Download Eclipse and connect your first model in under two minutes. No account, no license fee, no lock-in.
Free & open source · Windows, macOS & Linux · bring any LLM
Common questions
Is Eclipse free to download and use?
Yes. Eclipse is free and open source. There is no license fee and no account is required to download it. You can use it for personal, commercial and team projects at no cost.
Which AI models and LLMs can I connect?
You can connect OpenAI (GPT models), Anthropic Claude, Azure OpenAI, DeepSeek, Hugging Face, and local models through Ollama or any OpenAI-compatible API. You are not locked to a single vendor.
What is MCP and does Eclipse support it?
The Model Context Protocol (MCP) is an open standard that lets AI agents call external tools, services and data sources. Eclipse supports MCP, so AI workflows can act on your files, Git and connected systems, not just chat.
Can I run AI models locally or offline?
Yes. Through Ollama and local OpenAI-compatible endpoints you can run models on your own machine, so your code and data never leave your environment. This is useful for private or regulated work.
Is Eclipse open source?
Yes. Eclipse is developed under the Eclipse Foundation's vendor-neutral, open governance, and its AI capabilities are built on Theia AI, an open framework. The source is public and contributions are welcome.
Do I need an account or API key?
No account is needed to download and run Eclipse. To use a cloud LLM you add your own provider API key, which stays in your settings. Local models through Ollama need no key at all.
Which operating systems are supported?
Eclipse runs on Windows, macOS and Linux. The download on this page is the Windows installer; macOS and Linux builds are available from the same release.
Can I build my own AI tools or agents on Eclipse?
Yes. Theia AI is an open framework for building AI-native tools and custom IDEs with your own agents, prompts and tool integrations, so teams can tailor the assistant to their stack.
Learn the open AI workflow
Guide
Free Eclipse IDE for AI coding, APIs & scripts
How the free, open Eclipse IDE fits modern AI-assisted dev workflows.
Concept
What is the Model Context Protocol (MCP)?
The open standard that lets AI agents use real tools — explained simply.
Guide
How to connect a local LLM with Ollama
Run models privately on your own machine and use them inside Eclipse.