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mcpfusion

Active·★ 253·Apache-2.0·Updated 2026-05-27
★ Trending★ Security & Safety

MCP Fusion - The TypeScript framework for secure MCP servers.

MCP Fusion is a TypeScript framework for building secure MCP servers with architectural security enforcement. It includes egress firewall, state machines, governance tools, and AI-assisted development via a machine-readable Skill contract. The framework supports three pathways: zero-code YAML, typed MVA, and FSM-based workflow enforcement, and can be deployed to Vinkius Edge, Vercel, or Cloudflare Workers.

#mcp#mcp-framework#mcp-server#mcp-servers#model-context-protocol
$ Install
$ npx @mcpfusion/core create my-server && cd my-server && npm install
↗ Visit site★ GitHub
01

Features

01Egress Firewall (Presenter) - Validates responses via Zod schema and redacts PII before sending to LLM.
02State Gate (FSM) - Removes tools from agent's namespace based on workflow state using XState v5.
03Governance Stack - Eight modules for behavioral auditing, including contract hashing, lockfile, and drift detection.
04Sandbox Engine - Executes LLM-provided JavaScript in a sealed V8 isolate with memory and timeout limits.
05AI-Assisted Development - SKILL.md encodes security patterns; AI agents automatically produce compliant servers.
02

Compatibility

Vinkius Edge
Vinkius Edge
Verified via docs
Vercel
Vercel Functions
Verified via docs
Cloudflare Workers
Cloudflare Workers
Verified via docs
03

Quick start

1
$ npx @mcpfusion/core create my-server
2
$ cd my-server
3
$ npm install
04

Use cases

↳Build secure MCP servers for sensitive data, e.g., patient records with PII redaction and workflow gating.
↳Rapidly create MCP tools from YAML definitions without writing TypeScript code.
↳Deploy governed MCP servers to production infrastructure with built-in DLP and audit trails.
05

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Related searches

mcpfusion AlternativesBest Dev Tooling Tools 2026Open Source Dev Toolingmcpfusion Tutorialmcpfusion Vs Competitorsmcpmcp-frameworkmcp-server

Comments

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  • H
    Harley KimMay 6, 2026

    Framework handles common security concerns so you focus on tool logic.

  • R
    River LewisApr 24, 2026

    TypeScript MCP server framework with security built in from the start.

  • E
    Ellis ZhangApr 18, 2026

    Type safety across the full MCP server surface reduces runtime errors.

  • E
    Emerson PatelMar 15, 2026

    Good for teams who need secure MCP servers and don't want to add security as an afterthought.

On this page
01Features02Compatibility03Quick start04Use cases05Alternatives
Stats
GitHub Stars★ 253
Last commit3d ago
StatusActive
LicenseApache-2.0
CategoryDev Tooling
Trend (30d)
+10.1↑ 0.9%
Links
Documentation↗Discussion↗Issues↗Releases↗

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