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235 tools · 33 stacks

AI tools are all over the place. This is the full landscape — 247 tools across 21 categories, mapped and connected. Ready to narrow it down? Build your stack →

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What are you building and how is it defined?
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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
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Stars
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⭐ 8,000
Health
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●95 — Active
Trajectory
— not enough data
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Synced
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today

OpenAI API

API access to GPT-5, GPT-5.5, o3/o4 reasoning models, and the Responses API; plus embeddings, image, audio, and Realtime endpoints. The most widely deployed 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 (35)

CrewAIAutoGenLangChainLlamaIndexMastraPydanticAIsmolagentsAgno

Only Mastra (1)

OpenAI API
See full comparison in Explore →