Xplorer by Karate Labs is a cross-platform desktop application designed for exploring, testing, and automating APIs. It provides a user-friendly interface that abstracts the complexity of HTTP and JSON, enabling developers, testers, and product owners to make ad-hoc API calls, analyze responses, and build test flows without writing code. Xplorer supports importing and exporting various API data sources, deep integration with OpenAPI/Swagger specifications, API chaining, and seamless local integration with large language models (LLMs) for advanced automation and flow generation. The tool runs entirely on the user’s machine, ensuring data privacy and control, and is suitable for both individual and enterprise use cases.

Key Features

Install and run locally Runs 100% on your desktop, ensuring data privacy and no reliance on cloud services.

• No data leaves your machine
• Suitable for sensitive or private environments

API Chaining Create sequences of dependent API calls for complex testing scenarios.

• Build logical flows of API requests
• Automate multi-step API interactions

Deep OpenAPI & Swagger Support Advanced handling and visualization of large API specifications.

• Interactive split-window for schema and documentation
• Click to build payloads, resolve references, and reuse examples

Import/Export API Data Sources Supports multiple formats for easy migration and collaboration.

• Import from Postman, cURL, HAR, OpenAPI, Swagger
• Export flows to Karate Test for CI/CD integration

Environment Switching Easily switch between different API environments.

• Manage multiple API endpoints and credentials
• Test across dev, staging, and production

Built-in MCP Server & LLM Integration Local machine-comprehension protocol (MCP) server for AI-powered automation.

• Integrate with any LLM (local or organization-approved)
• Automate chained flows, generate dynamic requests, and explain test sequences

Security and Privacy Control over sensitive data with features like secret masking and local execution.

• Mask secrets in requests and responses
• No cloud dependency for sensitive workflows

Scriptable HTTP Client Automate and retry API calls with dynamic parameters.

• Supports before/after scripts
• Flexible for complex scenarios

Benefits

Increased Productivity Simplifies and accelerates API exploration and testing.

• Reduces manual effort and coding
• Enables rapid prototyping and troubleshooting

Enhanced Collaboration Facilitates sharing and reuse of API test flows.

• Import/export across teams and tools
• Standardizes API testing practices

Data Privacy and Security Ensures sensitive information stays local.

• No forced cloud sync or external storage
• Suitable for regulated industries

Advanced Automation Leverages AI and scripting for sophisticated test flows.

• Automate repetitive tasks
• Generate and validate complex API interactions