This tool captures and debugs HTTP/HTTPS traffic on your mobile device. It allows you to modify, resend, and analyze requests, generate API documentation, and apply custom rules for flexible customization. All data is stored locally for privacy.
3.11
July 20, 2026
Update this release: • Fixed the cron expression for scheduled tasks to support second-level precision. • Fixed the judgment logic for automatic termination of scheduled tasks, now evaluating after task execution completes. • Dependency injection for Combo Replay now supports array index injection (e.g., messages[0].content), allowing more flexible field references within lists. • Optimized underlying code to improve stability. Thank you for your use. If you encounter any issues, feel free to provide feedback!
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ApiCatcher is a mobile tool designed for capturing and debugging HTTP/HTTPS traffic. It allows users to inspect, modify, and replay network requests, as well as generate API documentation.
ApiCatcher creates a local VPN on your device to intercept and forward all HTTP/HTTPS traffic to its local service. This process works over both Wi-Fi and cellular data connections.
Yes, all captured HTTP/HTTPS requests and responses are stored locally on your device. ApiCatcher does not involve any remote servers, and its root certificate is self-signed and generated on your device.
Yes, ApiCatcher supports request replay, allowing you to modify and resend requests. It also offers 'Combo Replay' for orchestrating multiple requests in dependency order and 'Scheduled Replay' for timed execution.
No, ApiCatcher does not contain advertisements. It is a free application with optional in-app purchases for enhanced features.
ApiCatcher is available for iOS devices, specifically iPhones and iPads.
The latest version of ApiCatcher is 1.17, which was last updated on April 1, 2026. This indicates a recent update, suggesting ongoing development and support.
The provided data indicates that ApiCatcher has in-app purchases, though specific details about what these purchases unlock are not detailed in the description.
