Applet.io by 500apps is a cloud-based API integration and widget platform designed to simplify the connection of third-party SaaS applications, automate data flows, and enhance application functionality without requiring extensive coding. The platform provides a unified API for integrating with over 190 popular services—including accounting, project management, CRM, customer support, and cloud storage—allowing developers to connect their apps to multiple systems with minimal effort. Applet.io offers pre-built, customizable widgets (such as file pickers and data display tools) that can be embedded directly into applications, enabling users to interact with external data sources seamlessly. The platform supports OAuth configuration for secure authentication, a visual dashboard for managing integrations, and a sandbox environment for testing. Applet.io is part of the 500apps suite, offering scalable pricing and access to 50+ business applications.

Key Features

Unified API Integration Connect to 190+ third-party SaaS applications through a single, unified API

• Reduces integration complexity
• Supports popular services (CRM, accounting, project management, cloud storage)

Custom Widgets Embed pre-built or custom widgets to display or interact with external data

• File Picker tool for cloud storage integration
• Data display and input widgets for enhanced user experience

OAuth Configuration Secure authentication and authorization for integrated applications

• Supports SSO and OAuth protocols
• Enables restricted access without sharing user credentials

Visual Dashboard Centralized management of all integrations and widgets

• Monitor API connections and data flows
• Add and manage multiple projects

Sandbox Environment Test integrations and widgets in a safe, isolated environment

• Rapid prototyping and experimentation
• Reduces deployment risk

Data Synchronization Sync data across multiple devices and applications

• Ensures consistency regardless of data origin
• Real-time updates between connected systems

Benefits

Accelerated Integration Speeds up the process of connecting apps and services

• No-code or low-code setup
• Reduces development time and maintenance

Enhanced Application Functionality Makes apps more powerful and user-friendly

• Access to a wide range of third-party features
• Customizable widgets for tailored user experiences

Improved Security Secure data access and user authentication

• OAuth and SSO support
• Granular permission controls

Scalability and Flexibility Adapts to businesses of any size and integration need

• Supports unlimited projects
• Flexible pricing and access to 50+ business apps