Ratel
skills · by ratel-ai
Context engineering for AI agents. ~80% fewer tokens. Fix tool overload. Skills and memory with in-process BM25 retrieval. No vector DB. No embeddings.
No known CVEs
MIT license
Actively maintained
Last commit 3d ago
Works with most clients
Transport: stdio, sse, http
7 tools · ~376 tok
Grade A · 0.2% of 200K ctx
MCPpedia last refreshed this data
Ratel is an MCP server that context engineering for AI agents. ~80% fewer tokens. Fix tool overload. Skills and memory with in-process BM25 retrieval. No vector DB. No embeddings. Its tool list has not been published yet over stdio, sse and http, requires no API key, and scores 93/100 on MCPpedia's security, maintenance and efficiency rubric.
Step 1
Install in your client
Config is the same across clients - only the file and path differ.
CD
Supported in Claude Desktopstdio, sse, http · Node 18+
Paste into ~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"ratel": {
"args": [
"-y",
"skills"
],
"command": "npx"
}
}
}Are you the author?
Add this badge to your README to show your security score and help users find safe servers.
Embed in your READMEAbout badges →
[](https://mcppedia.org/s/ratel)
Read me
What Ratel does
The context engineering layer for AI agents. Selects only the tools and skills relevant to each turn, recovering accuracy lost to tool overload and cutting what you pay per call. No vector DB, no infra.
Test This Server
This server supports HTTP transport. Be the first to test it - help the community know if it works.
Scored, not listed
Why this score
Five weighted categories - click any category to see the underlying evidence.
Score breakdown
93/100across 5 weighted dimensions
0255075100
28
20
20
15
10
−7
Security
Maintenance
Efficiency
Documentation
Compatibility
Categoriesclick a row to see evidence
Security
OSV.devNo known CVEs.
Checked skills against OSV.dev.
Inventory
Tools (7)
Click any tool to inspect its schema.
~376 tokens total
Community
Reviews
Be the first to review
Have you used this server?
Share your experience - it helps other developers decide.
How easy was setup?Did it work reliably?How was the documentation?
Sign in to write a review.
Frequently Asked Questions
- Is Ratel safe to use?
- Ratel has no known CVEs as of the latest MCPpedia security scan. Authentication requirements were not detected automatically - check the project's documentation before connecting in a shared environment. Licensed under MIT.
- How do I install Ratel?
- Ratel supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
- What can Ratel do?
- Ratel provides 7 tools: Introduction, Why, Quickstart, Typescript, Python and 2 more. See the full tools list on the server page for descriptions and parameters.
- What AI clients work with Ratel?
- Ratel is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
- Is Ratel actively maintained?
- Ratel is actively maintained - last commit was 3 days ago. It has 461 GitHub stars.
Related
Similar servers
Others in ai-ml
I
io.github.mims-harvard/tooluniverse962,500+ scientific tools for AI scientists: life science, research, literature, and more.
1.7k 4
Gemini Cli95An open-source AI agent that brings the power of Gemini directly into your terminal.
107.2k 8
Codebase Memory Mcp95Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.
45.3k 6
Suede Creator Skills95Read-only access to 71 Suede skills: discovery, install options, SEO audits, A-F grading.
126 2
MCP Security Weekly
Get CVE alerts and security updates for Ratel and similar servers.
Community
Discussion
Start a conversation
Ask a question, share a tip, or report an issue.
Has anyone used this with Cursor?How do you handle auth?Any alternatives?
Sign in to join the discussion.