ApiClientSync

ApiClientSync is a fast, fully native API client for developers who want powerful tools without unnecessary complexity. Build, organize, test, and debug HTTP and WebSocket requests in a clean interface designed for iPhone, iPad, and Mac. ORGANIZE REQUESTS WITH COLLECTIONS • Create collections for different projects, environments, or APIs • Add default headers that automatically apply to every request • Use the built-in Cookie Jar to capture, store, and send cookies across requests • Restore your last selected request and response automatically when reopening a collection POWERFUL REQUEST COMPOSER • Support for GET, POST, PUT, PATCH, DELETE, HEAD, and OPTIONS • Build HTTP and WebSocket requests in one app • Edit headers and query parameters using YAML, JSON, or key-value rows • Switch formats anytime without losing data • Send JSON, XML, plain text, SPARQL, URL-encoded forms, multipart forms, and raw file bodies • Toggle multipart fields between text and file uploads per row • Import requests directly from curl commands • Export requests as ready-to-use code in 20+ languages including Swift, Python, JavaScript, Go, Rust, and more ADVANCED RESPONSE AND TRANSCRIPT VIEWERS • Adaptive response layout that maximizes workspace automatically • Pretty-print JSON and XML responses • Preview HTML, images, raw text, Base64, and binary hex dumps inline • Inspect response history for previous runs • View detailed request traces and URLSession debug logs • Review WebSocket transcripts and recent session history • Share response bodies as files or copy formatted output instantly NETWORKING, PROXY, AND IMPORT/EXPORT FEATURES • Per-request and per-collection proxy support • HTTP, HTTPS, and SOCKS5 proxy support • Username and password authentication for proxies • Disable SSL verification for testing internal or self-signed APIs • Import and export HAR 1.2 files • Preserve app-specific request backup data alongside standard HAR compatibility ICLOUD AND APPLE PLATFORM FEATURES • Sync collections, requests, and preferences across devices with iCloud • Live Activities support on iPhone for long-running requests • Home Screen widget support for monitoring saved requests • Fully native SwiftUI experience built for Apple platforms • Optimized for iPhone, iPad, and Mac with sidebar navigation and system appearance support PRIVACY FIRST • No subscriptions • No accounts required • No tracking • Just a fast, native API client built for developers