Fastn Server
The Fastn server is a powerful, scalable platform that enables dynamic tool registration and execution based on API definitions. It seamlessly integrates with services like Claude.ai and Cursor.ai, providing a unified server solution for a wide range of tasks. With its robust architecture, Fastn delivers exceptional performance and flexibility for real-time, API-driven operations.
Getting Started
Package Installation (Recommended)
The easiest way to install the Fastn server is using pip:
After installation, you can run the server with:
When using the package installation, your configuration for AI assistants will look like:
macOS/Linux:
Windows:
To find the exact path of the installed fastn-server command:
On macOS/Linux:
which fastn-server
On Windows:
where fastn-server
Features
Integrated platform support - Use services like Slack, Notion, HubSpot, and many more through the Fastn server after completing the simple setup
Logging support - Comprehensive logging system
Error handling - Robust error management for various scenarios
Step-by-Step Setup Guide
Step 1: Fastn Setup
Login to your Fastn account
Go to "Connectors" from the left sidebar
Activate the service(s) you want to use by clicking on activate.
Go to "Settings" from the left sidebar
Click on "Generate API Key" and save it somewhere locally (e.g., in a notepad)
Click on the copy button that exists on the top bar (left side of your profile)
Copy your Workspace ID and save it as well
All setup from Fastn is now complete
Step 2: Server Setup
Option 1: Use Package Installation (Recommended)
See the "Package Installation" section above.
Option 2: Manual Setup
Prerequisites
Python 3.10 or higher
Quick Start
macOS
Windows
Step 3: Integration with AI Assistants
For Package Installation (Option 1)
Find the path to your installed fastn-server:
On macOS/Linux:
which fastn-server
On Windows:
where fastn-server
Configure your AI assistant with the path from step 1.
For Manual Installation (Option 2)
Integration with Claude On Mac OS
Open the Claude configuration:
Add the following configuration (replace placeholders with your actual values):
Integration with Cursor
Open Cursor settings
Click on "MCP" in the settings menu
Click on "Add New"
Add a name for your server (e.g., "fastn")
Select "Command" as the type
Add the following command (replace placeholders with your actual values):
Detailed Integration Instructions
For Claude
Open the Claude configuration file:
Windows:
notepad "%APPDATA%\Claude\claude_desktop_config.json"
orcode "%APPDATA%\Claude\claude_desktop_config.json"
Mac:
open -a TextEdit ~/Library/Application\ Support/Claude/claude_desktop_config.json
orcode ~/Library/Application\ Support/Claude/claude_desktop_config.json
Add the appropriate configuration JSON based on your installation method.
For Cursor
Open Cursor settings
Click on "MCP" in the settings menu
Click on "Add New"
Add a name for your server (e.g., "fastn")
Select "Command" as the type
Use the appropriate configuration based on your installation method
Troubleshooting
Package Structure Error
If you encounter an error like this during installation:
Quick Fix:
Make sure
pyproject.toml
has the wheel configuration:
Then install dependencies:
Run the server:
Logging
Logs are output with timestamp, level, and message in the following format:
Support
For questions, issues, or feature requests, please visit:
Documentation: https://docs.fastn.ai
Community: https://community.fastn.ai
License
This project is licensed under the terms included in the LICENSE file.
This server cannot be installed
remote-capable server
The server can be hosted and run remotely because it primarily relies on remote services or has no dependency on the local environment.
An MCP server that enables dynamic tool registration and execution based on API definitions, providing seamless integration with services like Claude.ai and Cursor.ai.
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