Toolmux
Developer Tool • March 12, 2026
Smart MCP proxy with V8 sandbox code execution. Connect N MCP servers behind 2 meta-tools with O(1) token cost.
TypeScript
MCP
AI Agents
V8
NPM Package
Open Source
Key Features
- •2 tools (execute + search) replace 50-200 upstream tool definitions
- •O(1) token cost regardless of number of connected servers
- •Agent writes JavaScript executed in a V8 sandbox — no LLM round trips
- •Auto-generated TypeScript declarations for all connected tools
- •92-96% token reduction at scale vs direct tool injection
- •Semantic search across all upstream tools when agent needs discovery