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Alepha188838884/context-firewall

by Various

MCP proxy that collapses 50+ tools into 4 meta-tools and compresses tool outputs by 60-95% (HTML, base64, huge JSON) - cut context-token costs for any MCP client, any model

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MCP

Alepha188838884/context-firewall

Added 3 Sept 2026

#ai-agents#claude#context-window#llm#mcp#mcp-proxy#mcp-server#modelcontextprotocol
Catalogue record, not a reviewed recommendation. This record can include automatically collected descriptions and setup details. Confirm important claims with the original source. Explore source-reviewed tools.

Overview

An MCP proxy that consolidates over 50 tools into 4 meta-tools and compresses tool outputs by 60-95% for formats like HTML, base64, and large JSON. It is designed to reduce context-token costs across any MCP client and model.

Best for

Best for
Developers using MCP servers with high-volume tool outputs

Use cases

  • Reduce token usage in MCP-based agent pipelines
  • Simplify tool surface by grouping into meta-tools
  • Compress large outputs like HTML or JSON before model processing

How to use

Install

npx context-firewall --config context-firewall.json

Clients listed in this record (not verified here)

Claude Desktop, Claude Code, Cursor, Cline, VS Code, ChatGPT

Notes

2 stars on GitHub. Last updated 2026-09-03. Licensed MIT.

Pros

  • Significant output compression (60-95%)
  • Works with any MCP client and model
  • Reduces context-token costs

Cons

  • Low adoption with only 2 stars
  • Potential loss of detail from aggressive compression
  • Limited documentation or community support

Pairs with

Other entries in the index that connect to this one. Click through to see the chain.

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