Paper2GUI turns AI papers into desktop GUI tools; its project description says it supports more than ten AI models.
Open source
DemoGPT
DemoGPT creates agent applications from prompts and includes tools, prompts, frameworks, and models.
About DemoGPT
DemoGPT AgentHub is a Python library for building AI agents that use large language models (LLMs) together with external tools. Developers install the demogpt package with pip, then create an agent by choosing a model, a set of tools, and an agent type. The library includes built-in tools for web search, weather, Wikipedia, arXiv, PubMed, Wikidata, Stack Overflow, YouTube search, URL requests, and running Python or Bash code. Developers can also write their own tools by extending a base tool class.
Agents can be combined with retrieval-augmented generation (RAG), which lets an agent look up information from documents during a task. When verbose output is enabled, the agent prints its reasoning, the tool calls it makes, and the tool results. The examples in the repository use an OpenAI chat model, so the library is shown working with that provider. The source does not state pricing.
Key features
- Creates LLM agents from a short Python setup using a chosen model and tools
- Installable as a Python package with pip install demogpt
- Includes built-in tools for search, weather, Wikipedia, arXiv, and PubMed
- Includes tools for running Python or Bash code and sending URL requests
- Supports custom tools created by extending a base tool class
- Combines RAG retrieval with agents and offers a ReactAgent type
Best for: Python developers who want to build LLM agents that call external tools and need a starting library with built-in tools.
Good for
- Open source, with a license file included in the repository
- Custom tools can be added by subclassing a base tool and implementing a run method
- Verbose mode shows the agent's reasoning and each tool call and result
Watch out for
- The examples are built around an OpenAI chat model (gpt-4o-mini)
- The source does not describe pricing
DemoGPT at a glance
- Category
- AI & Machine Learning › AI App Builders
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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DemoGPT FAQ
How do I install DemoGPT AgentHub?
Install the main package with pip install demogpt.
How do I add my own tool?
Import BaseTool from demogpt_agenthub.tools, create a class that sets a name and description, and implement a run method that returns a result. The tool can then be passed to an agent in its tools list.
Which built-in tools are included?
The source lists TavilySearchTool, WeatherTool, WikipediaTool, BashTool, PythonTool, ArxivTool, YouTubeSearchTool, StackOverFlowTool, RequestUrlTool, WikiDataTool, and PubmedTool.
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