FastMCP is an open-source Python framework for building MCP (Model Context Protocol) servers and clients that empower LLMs with external tools, data sources, and custom prompts. Developers define tool classes and resource handlers in Python, register them with the FastMCP server, and deploy using transport protocols like HTTP, STDIO, or SSE. The framework’s client library offers an asynchronous interface for interacting with any MCP server, facilitating seamless integration of AI agents into applications.

QueryCraft is a Python-based prompt engineering toolkit designed to streamline the development of AI agents. It enables users to define structured prompts through a modular pipeline, connect seamlessly to multiple LLM APIs, and conduct automated evaluations against custom metrics. With built-in logging of token usage and costs, developers can measure performance, compare prompt variations, and identify inefficiencies. QueryCraft also includes debugging tools to inspect model outputs, visualize workflow steps, and benchmark across different models. Its CLI and SDK interfaces allow integration into CI/CD pipelines, supporting rapid iteration and collaboration. By providing a comprehensive environment for prompt design, testing, and optimization, QueryCraft helps teams deliver more accurate, efficient, and cost-effective AI agent solutions.

AI Agents is a comprehensive Python framework designed to streamline the development of intelligent software agents. It offers plug-and-play toolkits for integrating external services such as web search, file I/O, and custom APIs. With built-in memory modules, agents maintain context across interactions, enabling advanced multi-step reasoning and persistent conversations. The framework supports multiple LLM providers, including OpenAI and open-source models, allowing developers to switch or combine models easily. Users define tasks, assign tools and memory policies, and the core engine orchestrates prompt construction, tool invocation, and response parsing for seamless agent operation.

The Open Assistant API provides a comprehensive Python client and CLI tools to interact with the Open Assistant server, a self-hosted open-source conversational AI platform. By exposing endpoints for creating conversations, sending user prompts, streaming AI-generated replies, and capturing feedback on responses, it enables developers to orchestrate complex chat workflows. It supports connection configuration, authentication tokens, customizable model selection, and batched message handling. Whether deployed locally for privacy or connected to remote instances, the API offers full control over conversation state and logging, making it ideal for building, testing, and scaling ChatGPT-style assistants across various applications.

Fast-LLM-Agent-MCP is a lightweight, open-source Python framework for building AI agents that combine memory management, chain-of-thought reasoning, and multi-step planning. Developers can integrate it with OpenAI, Azure OpenAI, local Llama, and other models to maintain conversational context, generate structured reasoning traces, and decompose complex tasks into executable subtasks. Its modular design allows custom tool integration and memory stores, making it ideal for applications like virtual assistants, decision support systems, and automated customer support bots.