Built Different. Built Native.
RESTK is not another Electron wrapper. It is a native macOS API client with privacy-first architecture, end-to-end encryption, and a built-in MCP server for AI-powered workflows. Free during beta.
What Makes RESTK Different
The features that set RESTK apart from every other API client
Privacy-First
Your API secrets stay encrypted and under your control. Credentials are never shared with analytics or AI agents.
Offline-First with Cloud Sync
Work without internet. Your data loads instantly from local storage. Sync runs to keep you updated.
End-to-End Workspace Encryption
AES-256-GCM encryption. Data is encrypted on your Mac before sync. The server only stores ciphertext.
Built-in MCP Server for AI Agents
Let Claude, Cursor, and Windsurf interact with your API collections locally. Credentials auto-redacted. You approve every action.
Multi-Window
Detach the collection browser into a separate window. Work across multiple monitors with independent views.
Native macOS App
Built with SwiftUI. No Electron. Instant launch, low memory, native keyboard shortcuts, dark mode.
Core Features
Everything you need to build and test APIs
Powerful Request Builder
Build and send HTTP requests with an intuitive interface. Support for all HTTP methods, headers, query params, and body types.
Environment Variables
Manage Dev, Staging, and Production configs. Secret variables, current value overrides, instant switching from the toolbar.
12 Authentication Methods
Basic, Bearer, OAuth 2.0, OAuth 1.0a, JWT, Digest, Hawk, NTLM, AWS SigV4, API Key — with collection and folder inheritance.
GraphQL Support
Built-in GraphQL editor with schema introspection, autocomplete, and query variables.
Collections & Folders
Group related requests into collections. Organize by project, feature, or any way that makes sense for your workflow.
Response History & Bookmarks
Every response auto-saved. Search across responses, compare side-by-side, bookmark important ones, view performance stats.
Developer Experience
Tools that make your workflow faster and more productive
Nova Scripting Engine
Pre-request and post-response JavaScript scripts. Modify headers, generate tokens, validate responses, run tests. Inheritable at collection and folder level.
Collection Runner
Run all requests in a collection or folder sequentially. Presets for different test configurations.
Import from Anywhere
One-click import from Postman, Insomnia, OpenAPI/Swagger, and cURL. Drag and drop multiple files.
Syntax Highlighting (100+ Languages)
JSON, XML, HTML, YAML, GraphQL, JavaScript, Python, Go, Rust, and 100+ more in the response viewer and script editor.
Auto-Updates
Delta updates via Sparkle. Code-signed and Apple-notarized. Downloads only what changed.
Watch Nova scripting in action
Collaboration & Security
Work together with your team — securely
Organizations & Roles
Create organizations, invite members, assign Owner, Manager, Editor, or Viewer roles per workspace.
Team Workspaces
Create shared workspaces for your team. Everyone stays in sync with real-time collaboration.
Cross-Device Sync
Your work syncs automatically across all your devices with end-to-end encryption. Start on one Mac, continue on another.
Ready to experience these features?
Download RESTK for free and start building better APIs today.