These tools integrates with

VapivsLangGraph

Voice agent middleware for production phone and web agents versus Graph-based stateful agent orchestration

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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

Side-by-side comparison

Field
Vapi
LangGraph
Category
Voice AI
Agent Frameworks
Type
Commercial
Open Source
Free Tier
✓ Yes
✓ Yes
Pricing Plans
Pay-as-you-go: $0.05/minEnterprise: Custom
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GitHub Stars
—
⭐ 8,000
Health
—
●95 — 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.

Website ↗

LangGraph

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

Website ↗GitHub ↗

Shared Connections3 tools both integrate with

Retell AIElevenLabsDeepgram

Only Vapi (3)

LangGraphPipecatLiveKit Agents

Only LangGraph (27)

CrewAICursorLangSmithLiteLLMLlamaIndexSweep AILangfuseQdrantE2Bpgvector

Explore the full AI landscape

See how Vapi and LangGraph fit into the bigger picture — 235 tools, 543 relationships, all mapped.

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