macOSDeveloper$4.99Coming Soon
Echo
A minimalist native macOS API client for developers who find Postman too heavy.
Coming Soon · $4.99Windows — Coming Soon
Planned price · $4.99. Not on the Mac App Store yet — check back soon.
Features
- REST requests (GET, POST, PUT, PATCH, DELETE, HEAD)
- GraphQL query editor with automatic JSON POST body
- Local request collections with SwiftData storage
- Environment variable substitution ({{baseUrl}}, {{token}})
- Connection string manager (PostgreSQL, MySQL, MongoDB, Redis, custom)
- Request history with timing and response size logging
- Import/Export collections (JSON and Postman format)
- OAuth2 authentication with client credentials flow
- WebSocket client for real-time API communication
- HTTP proxy configuration with authentication
- Response diff viewer with saved baselines
- Request templates and snippets (⌘⇧T)
- Search and filter collections by name
- Pretty-printed JSON responses
- Offline storage — no cloud sync required
Requirements
- ◇macOS 14.0 (Sonoma) or later
- ◇Xcode 15.0 or later
- ◇Network access (outgoing HTTP only, when sending requests)
Privacy
No accounts, no analytics, no telemetry. Data stays on your device unless you explicitly enable sync (e.g. iCloud).
Coming Soon · $4.99Windows — Coming Soon