The Postman for MCP

TurboMCP Studio

Native desktop application for Model Context Protocol development. Build, test, and debug MCP servers with operation-specific tooling for all five MCP capabilities. From rapid prototyping to production deployment.

5
MCP Operations
5
Transports
Native
Desktop App
v0.1.0
Initial Release
MIT
Open Source

Native MCP-First Development

Unlike web-based tools with proxy limitations, TurboMCP Studio provides direct server communication, native process spawning, and operation-specific interfaces designed for MCP protocol semantics.

Web-Based MCP Tools

Proxy layer overhead
Additional network hops and latency
Limited process control
Cannot spawn child processes
Security vulnerabilities
RCE risks, auth token exposure
Basic UI capabilities
Browser limitations
No offline support
Requires network connectivity

TurboMCP Studio

Direct IPC communication
Zero proxy overhead, native performance
Native process spawning
Full STDIO server lifecycle control
Sandboxed execution
Secure native process isolation
Rich native components
Desktop-grade UI capabilities
Full local-first
Works entirely offline with SQLite

Operation-Specific Interfaces

Dedicated UIs for each MCP operation type, designed for their unique semantics and workflows.

Tool Explorer

Auto-generated forms from JSON schemas with intelligent validation and response rendering.

  • JSON Schema → UI form generation
  • Multi-format response rendering
  • Call history with replay
  • Batch execution support
  • Schema compliance validation

Resource Browser

Hierarchical navigation with URI template support and real-time subscriptions.

  • Tree-based resource discovery
  • URI template builder
  • Real-time subscription monitoring
  • Content preview (text, JSON, images)
  • Manual cache control

Prompt Designer

Visual prompt composition with argument management and template library.

  • Drag-and-drop prompt building
  • Dynamic argument injection
  • Template save and share
  • Resource URI auto-complete
  • A/B testing support

Sampling Debugger

Step-through debugging for LLM sampling with intelligent error diagnosis.

  • Pause, inspect, modify requests
  • Full conversation context display
  • Intelligent error categorization
  • Protocol flow visualization
  • Token count tracking

Elicitation Flow Builder

Visual workflow designer for interactive forms with conditional logic.

  • Flowchart-style elicitation design
  • Conditional branching support
  • JSON Schema validation
  • MCP spec-compliant schema builder
  • Preview mode for testing

Protocol Inspector

Real-time JSON-RPC message capture and flow visualization.

  • Live message capture
  • Bidirectional flow visualization
  • Latency tracking per message
  • Message filtering and search
  • Export to standard formats

Collections & Multi-Server Workflows

Chain operations across multiple MCP servers with variable interpolation, assertions, and automated testing.

Workflow Features

Multi-Server Operations

Chain operations across different MCP servers in a single workflow

Variable Interpolation

Extract values from responses with JSONPath and use in subsequent steps

Conditional Execution

Branch execution based on response values and assertions

Parallel Execution

Run independent operations concurrently for performance

Scenario Management

Save, export, and version control complex test scenarios

Team Sharing

Share collection libraries and configurations with your team

Testing & Validation

Response Assertions

7 assertion types: status, contains, equals, JSONPath, timing, variable value, custom script

Protocol Compliance

MCP specification conformance testing with schema validation

Performance Testing

Operation latency measurement and throughput analysis

Load Testing

Concurrent connection simulation and rate limiting validation

Contract Testing

Automated regression testing and schema evolution validation

CI/CD Integration

Command-line interface for automated testing in pipelines

World-Class Developer Experience

Features designed to make MCP development faster, easier, and more productive.

Intelligent Error Diagnosis

Transforms cryptic errors into actionable guidance with 15+ error patterns, fix suggestions, and one-click retry.

Protocol Flow Visualization

Visual timeline of JSON-RPC messages with color-coded flows, expandable payloads, and latency tracking per message.

Schema Validation

MCP spec-compliant validation for elicitation schemas before sending, catching errors at design time.

Native Process Control

Direct spawning and full lifecycle management of STDIO servers with resource monitoring and graceful shutdown.

Multi-Transport Support

Seamless switching between STDIO, HTTP/SSE, WebSocket, TCP, and Unix sockets with transport-specific configuration.

Enterprise Security

Sandboxed process execution, encrypted storage, OAuth 2.1 authentication, and comprehensive audit logging.

Native Three-Layer Architecture

Built on Tauri 2.0 + TurboMCP for production-grade performance and enterprise features.

Frontend Layer

SvelteKit 5 + TypeScript + Tailwind CSS

  • Svelte 5 runes mode (modern reactive)
  • Operation-specific UIs
  • Real-time protocol visualization
  • Enterprise design system
  • Responsive mobile-first layout
  • Theme management (light/dark/system)

Tauri Bridge Layer

Secure type-safe IPC

  • Type-safe IPC with serde
  • Native process spawning
  • File system access
  • Window management
  • Native menus & shortcuts
  • Plugin system integration

Native Engine

Rust + TurboMCP Client

  • TurboMCP enterprise client
  • Multi-transport support
  • Circuit breakers & retry logic
  • Connection pooling
  • Health monitoring
  • SQLite storage engine
  • Protocol analysis engine
  • Message replay capabilities

Get Started in Minutes

Download the native app for your platform and start testing MCP servers immediately.

Installation

1. Download for Your Platform

2. Or Build from Source

git clone https://github.com/Epistates/turbomcpstudio
cd turbomcpstudio
pnpm install
pnpm run tauri build

3. Connect Your First MCP Server

Open TurboMCP Studio, click "Add Server", and choose your transport type (STDIO, HTTP, WebSocket, etc.). The app will guide you through configuration and automatically discover server capabilities.