Lean Ctx MCP Server
by yvgudeLeanCTX is the Context Gateway for AI Systems. Select task-relevant context, apply supported controls, connect local knowledge and inspect recorded evidence. Open-source Engine: CLI, MCP, hooks and supported proxy paths.
Lean Ctx is an open-source mcp server by yvgude, written mainly in Rust, with 3,918 GitHub stars and the Apache-2.0 license. Its code was last updated Oct 31, 2026. The latest npm release is lean-ctx-bin 3.12.5, published Nov 14, 2026, with 1,324 downloads last week.
Scan summary: scanned Nov 5, 2026 at commit ffe6e95. Seen able to run shell commands, run dynamic code. Scan policy
What Lean Ctx can touch
- Seen in this scan, either in the code or while it ran.Run shell commandsFound in the code by our scan
- Seen in this scan, either in the code or while it ran.Run dynamic codeFound in the code by our scan
- Our checks did not find this. The tool may still do it.Read or write filesNot seen in this scan
- Our checks did not find this. The tool may still do it.Read environment and secretsNot seen in this scan
- Our checks did not find this. The tool may still do it.Control a web browserNot seen in this scan
- Our checks did not find this. The tool may still do it.Connect to databasesNot seen in this scan
- Our checks did not find this. The tool may still do it.Read or send messagesNot seen in this scan
- Our checks did not find this. The tool may still do it.Touch money or tradingNot seen in this scan
- Our checks did not find this. The tool may still do it.Connect to the internetNot run in this scan
"Not seen" means our checks did not find it, and the tool may still do it. Covers commit ffe6e95, Nov 5, 2026. See the scan policy.
Before you install Lean Ctx
AgenticMart scanned Lean Ctx on Nov 5, 2026 with automated checks for hidden code, known-malicious packages, leaked secrets and vulnerable dependencies. The result covers one commit under our scan policy, so review what access you give it and check any advisories shown here.
What it can access
- An MCP server is a program your AI app starts and talks to. A local one runs with your user's permissions: it can see the files, environment variables and network your account can.
Before you install
- Pin the version you reviewed instead of always installing the latest release.
- Read the tool list or scripts before the first run, and keep approval prompts on for actions that write, send or delete.
- Maintained by yvgude on GitHub, 3,918 stars and 357 forks. Popularity is not proof of safety.
- Last code change: Oct 31, 2026.
- Open-source license: Apache-2.0.
Lean Ctx is an open-source mcp server by yvgude, written mainly in Rust. LeanCTX is the Context Gateway for AI Systems. Select task-relevant context, apply supported controls, connect local knowledge and inspect recorded evidence. Open-source Engine: CLI, MCP, hooks and supported proxy paths.
At a glance
- Stars
- 3.9k
- Forks
- 357
- Language
- Rust
- License
- Apache-2.0
- Created
- Mar 2026
- Last update
- Oct 31, 2026
- Type
- MCP Server
- Price
- Free
Topics
Questions about Lean Ctx
What is Lean Ctx?
LeanCTX is the Context Gateway for AI Systems. Select task-relevant context, apply supported controls, connect local knowledge and inspect recorded evidence. Open-source Engine: CLI, MCP, hooks and supported proxy paths.
Who maintains Lean Ctx?
Lean Ctx is maintained by yvgude on GitHub (yvgude/lean-ctx). AgenticMart lists it from public repository data.
Is Lean Ctx safe to use?
AgenticMart scanned Lean Ctx on Nov 5, 2026 with automated checks for hidden code, known-malicious packages, leaked secrets and vulnerable dependencies. The result covers one commit under our scan policy, so review what access you give it and check any advisories shown here.
What license does Lean Ctx use?
It is published under the Apache-2.0 license.
Lean Ctx alternatives
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| Name | Stars | Licence | Last updated | Scan |
|---|---|---|---|---|
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