Crow
Crow is a dual-purpose technology offering both a fast C++ web framework for HTTP/WebSocket services and an AI-powered backend agent system that helps integrate AI copilots into existing applications.
https://usecrow.org/?ref=producthunt
Product Information
Updated:Dec 2, 2025
What is Crow
Crow exists in two distinct forms: First, as a C++ microframework inspired by Python's Flask, designed for creating web services with HTTP and WebSocket capabilities. Second, as a modern AI integration platform that allows developers to add AI copilots to their existing products with minimal effort. The C++ framework is known for its speed and ease of use, while the AI platform focuses on simplifying the integration of AI capabilities into existing applications without requiring major backend modifications.
Key Features of Crow
Crow is a versatile technology that exists in two main forms: 1) A C++ microframework for creating HTTP/WebSocket web services with Flask-like routing capabilities and high performance, and 2) An AI-powered backend integration tool that allows companies to add AI copilots to their products by wrapping existing backend systems with an intelligent agent that understands the system's actions and constraints.
Easy Backend Integration: Allows integration with existing backend systems through a simple script, requiring no major rewrites of the backend code
AI-Powered Monitoring: Provides real-time API monitoring with AI-powered insights, error tracking, and proactive issue detection
Flexible Routing System: Offers Flask-like routing capabilities with support for HTTP and WebSocket protocols
Built-in Tool Management: Handles tool wiring, context management, UI, streaming, and knowledge integration automatically
Use Cases of Crow
AI Copilot Integration: Companies can quickly add AI assistants to their existing products to enhance user experience and automate interactions
API Monitoring and Management: Teams can monitor API performance, track errors, and receive AI-powered suggestions for improvements
Web Service Development: Developers can create fast and efficient web services using the C++ framework with minimal code
Pros
Quick implementation with minimal code changes
Powerful AI-powered monitoring and analytics
High performance and speed in web service operations
Cons
Compile times can be slow due to header-only library nature
Limited maintenance and updates for the C++ framework version
May require additional setup for authentication integration
How to Use Crow
Install Required Dependencies: Install the necessary packages using package manager: GCC/G++, Boost Development headers, and Asio (1.28 or later). For Linux: sudo apt-get install build-essential libboost-all-dev
Set Up Project Structure: Create a new C++ project and add crow_all.h to Header Files directory. You can generate this file by running ./merge_all.py ../include crow_all.h in the scripts directory
Create Basic Application: Create a main.cpp file with basic Crow setup: #include "crow.h", define crow::SimpleApp, and set up basic routing using CROW_ROUTE macro
Configure CMake: Set up CMakeLists.txt with proper configuration: set C++ standard to 17, find required packages (asio and Crow), and link them to your project
Define Routes: Add routes to handle different URLs using CROW_ROUTE macro. Example: CROW_ROUTE(app, "/")([](){ return "Hello World"; });
Configure Server Settings: Set up server configuration like port number and threading: app.port(8080).multithreaded().run();
Build and Run: Compile your application using CMake and run the executable. Access your server through web browser at http://localhost:8080
Optional SSL Setup: For HTTPS support, compile with -DCROW_ENABLE_SSL -lssl flags and configure SSL context in your application
Add Middleware (Optional): If needed, add middlewares by using crow::App<middleware1, middleware2> instead of crow::SimpleApp
Crow FAQs
Crow is both an AI copilot integration platform and a C++ web framework. The AI platform (usecrow.org) allows you to add AI copilots to your product in minutes, while the C++ framework enables creating HTTP or Websocket web services with Flask-like routing.
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