CaspiAPI: API Client

Test, debug & run REST APIs

Free

CaspiAPI is a fast, native API client for developers — a Postman alternative that runs beautifully on iPhone, iPad and Mac. Build requests, inspect responses, run whole collections and automate tests, all from one polished app that works offline and keeps your data encrypted on-device. Already using Postman? Import your collections and environments in seconds and keep working — your pre-request and test scripts run exactly as they do on the desktop. BUILT FOR REAL WORK - Full REST/HTTP support — GET, POST, PUT, PATCH, DELETE and more - Multi-tab editor: query params, headers, body (JSON, form, raw), auth - Syntax-highlighted JSON responses with status, timing and size - Request history so you never lose what you sent POSTMAN-COMPATIBLE SCRIPTING - Run pre-request and test scripts with a real JavaScript engine - pm.* API support — pm.test, pm.environment, pm.response and more - Built-in CryptoJS for HMAC / SHA-256 signing and custom auth flows - Collection Runner executes requests in sequence and chains variables: a value captured in one request is instantly available to the next POWERFUL VARIABLES & ENVIRONMENTS - 5-level variable scope — global, collection, environment, and beyond - Switch environments instantly to move between dev, staging and prod - Edit any scope inline without leaving your request PRIVATE BY DESIGN - All data stored locally in an AES-256 encrypted database - The encryption key lives in the Secure Enclave (Keychain) — never in plain text - Works fully offline; your requests and secrets stay on your device NATIVE ON EVERY SCREEN - One app for iPhone, iPad and Mac — buy once, use everywhere - Adaptive layout: touch-friendly action sheets on iOS, full menus on Mac - Beautiful dark and light themes that follow your system automatically - Clean typography built for reading code Whether you're testing a production API on your phone, debugging a webhook on iPad, or running a full test suite on your Mac, CaspiAPI gives you a focused, secure and genuinely fast workflow. Download CaspiAPI and bring your API workflow with you — everywhere.

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What's new - Import collections from YAML files - Import directly from a URL - Security and stability improvements - Various bug fixes

Version 1.0.8

The developer, Muhammed Ismayilov, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Contact Info
    • User Content

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Muhammed Ismayilov
Size
  • 26.7 MB
Category
  • Developer Tools
Compatibility
Requires iOS 13.0 or later.
  • iPhone
    Requires iOS 13.0 or later.
  • iPad
    Requires iPadOS 13.0 or later.
  • iPod touch
    Requires iOS 13.0 or later.
  • Mac
    Requires macOS 10.15 or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
4+
Copyright
  • © 2026 CaspiX MMC
  • Privacy Policy

    • More by Muhammed Ismayilov

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