Postmancer
About
An experimental MCP server Rest Client intended to be a replacement of tools postman & insomnia
Details
- Author
- hijaz
- GitHub stars
- 28
- Downloads
- 328
- Categories
- Other
Jump to
- Make HTTP requests to any REST API
- Save and organize requests in collections
- Set and use environment variables with variable substitution
- Multiple authentication methods (Basic, Bearer, API Key, OAuth2)
- Request/response history and testing
Setting up with Highlight
This MCP is not yet compatible with Highlight’s one-click setup. However, you can still use it with Highlight by following these steps:
- Download and install Highlight from highlightai.com/download
- Navigate to the plugins tab and select "Add Custom Plugin"
-
Configure the plugin with the settings below
Plugin Name
PostmancerCommand (node, npx, python, etc.)Please refer to the README for specific instructions on how to obtain API keys or other required environment variables.
- Enable "Start Automatically" if you want the plugin to start when Highlight launches
From the repository
Install globally with npm install -g postmancer or run directly with npx postmancer. For Claude Desktop, add a configuration entry with "command": "npx", "args": ["-y", "postmancer"] to the MCP server list. Alternatively, run with Docker using docker run -i --rm --mount type=bind,src=/path/to/collections,dst=/data/collections postmancer.
http_request
Sends HTTP requests to specified URLs with optional authentication, headers, and body
list_collections
Lists all available request collections
list_requests
Lists all requests in a specified collection
save_request
Saves an HTTP request to a collection for future use
request_from_collection
Retrieves and optionally executes a request from a collection
set_environment_variable
Sets an environment variable for use in HTTP requests
get_environment_variables
Retrieves all environment variables from the specified environment
Claude Desktop / Cursor
Paste into your MCP client config file to install this server.
{
"mcpServers": {
"postmancer": {
"postmancer": {
"command": "npx",
"args": [
"postmancer"
]
}
}
}
}McpServers
{
"postmancer": {
"command": "npx",
"args": [
"postmancer"
]
}
}Postmancer
A standalone MCP server for API testing and management, allowing AI assistants to interact with RESTful APIs through natural language.
Overview
Postmancer is an MCP (Model Context Protocol) server that enables AI assistants like Claude to make HTTP requests, manage collections of API endpoints, and test API responses. It provides similar functionality to tools like Postman or Insomnia but designed specifically for AI assistants.
Features
- Make HTTP requests to any REST API
- Save and organize requests in collections
- Set and use environment variables with variable substitution
- Multiple authentication methods (Basic, Bearer, API Key, OAuth2)
- Request/response history and testing
Quick Start
Installation
```bash
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