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207 tools · 25 stacks
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AI tools are all over the place. This is the full landscape — 207 tools across 17 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?
These tools integrates with
Vapi
vs
LangGraph

Choose Vapi when…

  • •You're building phone or web voice agents with real-time conversation
  • •You need multi-provider LLM + TTS + STT routing in one platform
  • •You want production-grade call analytics and interruption handling

Choose LangGraph when…

  • •You need stateful, graph-based agent control flow
  • •Complex branching or retry logic is required
  • •You're building production agents that need observability
Field
Vapi
LangGraph
Category
Voice AI
Agent Frameworks
Type
SaaS
OSS
Free Tier
✓ Yes
✓ Yes
Plans
Pay-as-you-go: $0.05/minEnterprise: Custom
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Stars
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⭐ 8,000
Health
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●80 — Active

Vapi

Full-stack platform for building, testing, and deploying voice AI agents. Handles real-time telephony, multi-provider LLM routing, interruption detection, and call analytics. Most-adopted voice agent infrastructure in production.

LangGraph

Build stateful multi-actor applications as directed graphs. Part of the LangChain ecosystem. Strong for complex agentic workflows.

Vapi Website ↗
LangGraph Website ↗GitHub ↗

Shared Connections (3)

Retell AIElevenLabsDeepgram

Only Vapi (1)

LangGraph

Only LangGraph (22)

CursorCrewAILangChainLangSmithLiteLLMLlamaIndexLangfuseQdrant
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