Developer Tools

10 tools in this wing of the hall

For developer tools, start with Anthropic MCP, Gradio, Streamlit, and Semantic Kernel. ToolHalla compares 10 curated options by pricing, platform fit, strengths, trade-offs, and source-checked directory data.

Anthropic MCP

Model Context Protocol — universal standard for AI tool integration

Free (open standard)★ 45k

Gradio

OSS

Build and share machine learning demos easily

Free (open-source)★ 35k

Streamlit

OSS

Turn Python scripts into interactive web apps

Free (open-source) + Cloud★ 35k

Semantic Kernel

OSS

Microsoft's AI orchestration SDK for building agents with .NET, Python, and Java

Free (open-source)★ 23k

DSPy

OSS

Programming framework for LLMs — optimize prompts with code, not strings

Free (open-source)★ 22k

Vercel AI SDK

OSS

TypeScript toolkit for building AI-powered web applications

Free (open-source)★ 12k

Instructor

OSS

Structured outputs from LLMs using Pydantic

Free (open-source)★ 9k

E2B

Secure cloud sandboxes for AI-generated code execution

Free tier, pay-per-use for production★ 8k

NVIDIA Agent Skills

OSS

NVIDIA-verified skills for safer AI agent workflows across CUDA-X, NeMo, Omniverse, and physical AI

Free (open-source catalog and GitHub repo)updated 2026-06-03

Pieces

AI-powered developer productivity tool for code snippets

Free + PromacOS