Bruno API Testing
Integrates Bruno CLI for API testing, enabling users to run API requests and collections, manage environments, generate test reports (JSON/JUnit/HTML), and validate collection structures through natural language commands.
What is Bruno API Testing?
Bruno API Testing is a Model Context Protocol (MCP) server that allows AI assistants like Claude, Cursor, and VS Code to integrates bruno cli for api testing, enabling users to run api requests and collections, manage environments, generate test reports (json/junit/html), and validate collection structures through natur...
Integrates Bruno CLI for API testing, enabling users to run API requests and collections, manage environments, generate test reports (JSON/JUnit/HTML), and validate collection structures through natural language commands.
This server falls under the Developer Tools category on MCPgee, the world's largest MCP server directory with 33,000+ servers.
Features
- Integrates Bruno CLI for API testing, enabling users to run
Use Cases
Maintainer
Works with
Installation
Manual Installation
npx bruno-mcp-serverConfiguration
Configuration Details
claude_desktop_config.json
Performance
Response Metrics
Resource Usage
How to Set Up and Use Bruno API Testing
Bruno MCP Server integrates the Bruno API testing tool with Claude and other MCP clients, enabling natural language control over API testing workflows. It wraps the Bruno CLI to let users run API requests and collections, manage environments, generate test reports in JSON, JUnit, or HTML format, and validate collection structures — all through conversational commands. Development teams using Bruno for API testing can use this server to trigger test runs, analyze results, and manage their testing infrastructure without leaving their AI chat interface.
Prerequisites
- Node.js 18+ with npm installed
- Bruno CLI installed globally (`npm install -g @usebruno/cli`)
- An existing Bruno collection or API test suite
- An MCP-compatible client such as Claude Desktop
Clone the repository
Clone the Bruno MCP server repository from GitHub.
git clone https://github.com/macarthy/bruno-mcp.git
cd bruno-mcpInstall dependencies and build
Install npm dependencies and compile the TypeScript source.
npm install
npm run buildInstall Bruno CLI if not already installed
The MCP server delegates to the Bruno CLI (`bru`) for actually running tests. Ensure it is installed globally.
npm install -g @usebruno/cli
bru --versionConfigure Claude Desktop
Add the Bruno MCP server to your Claude Desktop config using the absolute path to the built dist/index.js file.
Restart Claude Desktop and verify
Restart Claude Desktop. You should see Bruno tools available including run_collection, create_request, and get_collection_stats.
Bruno API Testing Examples
Client configuration
Claude Desktop configuration for the Bruno MCP server pointing to the built JavaScript file.
{
"mcpServers": {
"bruno-mcp": {
"command": "node",
"args": ["/absolute/path/to/bruno-mcp/dist/index.js"],
"env": {}
}
}
}Prompts to try
Examples of API testing tasks you can perform through Claude with Bruno MCP.
- "Run all tests in my Bruno collection at ./my-api-tests and show the results"
- "Generate a JUnit test report for the authentication collection"
- "What is the structure and stats of my Bruno collection?"
- "Run only the POST /users request in the users collection"
- "Validate my Bruno collection structure and flag any issues"Troubleshooting Bruno API Testing
bru command not found when running tests
Install the Bruno CLI globally with `npm install -g @usebruno/cli`. If it is installed but not found, ensure your global npm bin directory is in PATH. Run `npm bin -g` to find the location and add it to your shell profile.
Server fails to start with 'Cannot find module' error
Ensure you ran `npm run build` before configuring Claude Desktop. The dist/ directory must exist. Re-run `npm install && npm run build` from the bruno-mcp directory and verify dist/index.js exists.
Test reports are not generated in the expected format
Bruno CLI report generation requires the `--reporter-json`, `--reporter-junit`, or `--reporter-html` flags. Specify the desired format explicitly in your prompt (e.g., 'generate a JUnit report') so the MCP server passes the correct flags to bru.
Frequently Asked Questions about Bruno API Testing
What is Bruno API Testing?
Bruno API Testing is a Model Context Protocol (MCP) server that integrates bruno cli for api testing, enabling users to run api requests and collections, manage environments, generate test reports (json/junit/html), and validate collection structures through natural language commands. It connects AI assistants to external tools and data sources through a standardized interface.
How do I install Bruno API Testing?
Follow the installation instructions on the Bruno API Testing GitHub repository. Clone the repo, install dependencies, and add the server config to your AI client.
Which AI clients work with Bruno API Testing?
Bruno API Testing works with all major MCP-compatible AI clients including Claude Desktop, Claude Code, Cursor, VS Code (GitHub Copilot), Windsurf, and Cline.
Is Bruno API Testing free to use?
Yes, Bruno API Testing is open source and available under the MIT License license. You can use it freely in both personal and commercial projects.
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