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123 tools · 10 stacks
GitHub

AI tools are all over the place. This is the full landscape — 123 tools across 12 categories, mapped and connected. Ready to narrow it down? Build your stack →

Stack Layers
What are you building and how is it defined?
How do you write and ship code?
How does your AI think and act?
Which models and infrastructure power it?
How do you build, observe, and extend it?
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These tools integrates with
OpenAI API
vs
Mastra

Choose OpenAI API when…

  • •You need the broadest ecosystem and most integrations
  • •GPT-4 or o-series reasoning models are required
  • •Assistants API, fine-tuning, or batch API are needed

Choose Mastra when…

  • •You're building TypeScript-native agentic workflows
  • •You want a structured framework for agent + RAG apps
  • •Node.js backend with AI logic is your stack
Field
OpenAI API
Mastra
Category
LLM Infrastructure
Agent Frameworks
Type
SaaS
OSS
Free Tier
✗ No
✓ Yes
Plans
API: Per token
—
Stars
—
⭐ 8,000

OpenAI API

API access to GPT-4o, o1, and other OpenAI models including embeddings and image generation. The most widely used LLM API in production.

Mastra

TypeScript-first framework for building AI agents and workflows. Supports tool use, memory, RAG, and evals with first-class Vercel AI SDK integration.

OpenAI API Website ↗
Mastra Website ↗GitHub ↗

Shared Connections (3)

LangfuseAnthropic APIVercel AI SDK

Only OpenAI API (18)

CrewAIAutoGenLangChainLlamaIndexMastraPydanticAIsmolagentsAgno

Only Mastra (1)

OpenAI API
See full comparison in Explore →