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LangChain API API

★★★★☆ 4.3 (12,000 reviews)
AI Powered API Access Free Tier Integrations Open Source
Freemium Free-$$$

Overview

Framework and platform for building LLM-powered applications with chains, agents, and retrieval-augmented generation.

API Details

TypeREST/PYTHON
AuthenticationAPI Key
Rate LimitsVaries by LangSmith tier

LangChain API Pricing Plans

Free

$0

  • ✓ open source framework
  • ✓ LangSmith free tier
  • ✓ 5K traces
MOST POPULAR

Plus

$39/mo

  • ✓ LangSmith 50K traces
  • ✓ playground

Enterprise

custom

  • ✓ unlimited traces
  • ✓ SSO
  • ✓ support

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$50/month or $350/year (save $250)

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