LangGraph website screenshot

LangGraph

LangGraph is an open-source framework from LangChain for building stateful, multi-actor agent workflows with low-level primitives for greater control over agent behavior. LangGraph Platform (LangSmith Deployment) provides managed infrastructure for running agents in production with assistants, threads, and runs.

LangGraph publishes 5 APIs on the APIs.io network, including Agent Connections (v2) API, Auth Service (v2) API, Deployments (v2) API, and 2 more. Tagged areas include Agents, Artificial Intelligence, Large Language Models, Workflows, and Orchestration.

LangGraph’s developer surface includes authentication, documentation, GitHub presence, engineering blog, and 4 more developer resources.

🌐 Visit website 📡 Source on GitHub
38.4/100 thin ▬ flat Agent 41/100 agent ready Full breakdown ↓
scored 2026-08-05 · rubric v0.9.1
AccessFreemiumSelf serve⚡ Free to try
5 APIs
AgentsArtificial IntelligenceLarge Language ModelsWorkflowsOrchestration

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-05 · rubric v0.9.1
Composite quality — 38.4/100 · thin
Contract Quality 14.0 / 25
Developer Ergonomics 4.3 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 4.8 / 13
Governance 0.0 / 12
Discoverability 7.4 / 10
Agent readiness — 41/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 7 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/langgraph: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 5

Individual APIs this provider publishes, each with its own machine-readable definition.

LangGraph Agent Connections (v2) API

The Agent Connections (v2) API from LangGraph — 2 operation(s) for agent connections (v2).

LangGraph Auth Service (v2) API

The Auth Service (v2) API from LangGraph — 13 operation(s) for auth service (v2).

LangGraph Deployments (v2) API

The Deployments (v2) API from LangGraph — 5 operation(s) for deployments (v2).

LangGraph Integrations (v1) API

The Integrations (v1) API from LangGraph — 4 operation(s) for integrations (v1).

LangGraph Listeners (v2) API

The Listeners (v2) API from LangGraph — 2 operation(s) for listeners (v2).

Open Collections 1

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

LangSmith Deployment Control Plane API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Langgraph Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Langgraph Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Langgraph Finops

FINOPS

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Langgraph Authentication

apiKey · 1 scheme

SECURITY

Langgraph Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Langgraph Agentic Access

39 operations · 20 acting · 1 human-in-the-loop

39 operations · 20 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHub
GitHub

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Other 1

Properties that don't map to a standard resource type

ParentCompany
ParentCompany

Source (apis.yml)

apis.yml Raw ↑ 
aid: langgraph
name: LangGraph
description: LangGraph is an open-source framework from LangChain for building stateful, multi-actor agent workflows with
  low-level primitives for greater control over agent behavior. LangGraph Platform (LangSmith Deployment) provides managed
  infrastructure for running agents in production with assistants, threads, and runs.
kind: contract
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
position: Consuming
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/langgraph.png
tags:
- Agents
- Artificial Intelligence
- Large Language Models
- Workflows
- Orchestration
created: '2026-01-02'
modified: '2026-05-19'
url: https://raw.githubusercontent.com/api-evangelist/langgraph/refs/heads/main/apis.yml
specificationVersion: '0.19'
apis:
- aid: langgraph:langgraph-agent-connections-v2-api
  name: LangGraph Agent Connections (v2) API
  description: The Agent Connections (v2) API from LangGraph — 2 operation(s) for agent connections (v2).
  humanURL: https://docs.langchain.com/langgraph-platform
  baseURL: https://api.host.langchain.com
  tags:
  - Agent Connections (v2)
  properties:
  - type: OpenAPI
    url: openapi/langgraph-agent-connections-v2-api-openapi.yml
  - type: Documentation
    url: https://docs.langchain.com/langgraph-platform
  - type: Repository
    url: https://github.com/langchain-ai/langgraph
  - type: Authentication
    url: https://docs.langchain.com/langsmith/create-account-api-key
- aid: langgraph:langgraph-auth-service-v2-api
  name: LangGraph Auth Service (v2) API
  description: The Auth Service (v2) API from LangGraph — 13 operation(s) for auth service (v2).
  humanURL: https://docs.langchain.com/langgraph-platform
  baseURL: https://api.host.langchain.com
  tags:
  - Auth Service (v2)
  properties:
  - type: OpenAPI
    url: openapi/langgraph-auth-service-v2-api-openapi.yml
  - type: Documentation
    url: https://docs.langchain.com/langgraph-platform
  - type: Repository
    url: https://github.com/langchain-ai/langgraph
  - type: Authentication
    url: https://docs.langchain.com/langsmith/create-account-api-key
- aid: langgraph:langgraph-deployments-v2-api
  name: LangGraph Deployments (v2) API
  description: The Deployments (v2) API from LangGraph — 5 operation(s) for deployments (v2).
  humanURL: https://docs.langchain.com/langgraph-platform
  baseURL: https://api.host.langchain.com
  tags:
  - Deployments (v2)
  properties:
  - type: OpenAPI
    url: openapi/langgraph-deployments-v2-api-openapi.yml
  - type: Documentation
    url: https://docs.langchain.com/langgraph-platform
  - type: Repository
    url: https://github.com/langchain-ai/langgraph
  - type: Authentication
    url: https://docs.langchain.com/langsmith/create-account-api-key
- aid: langgraph:langgraph-integrations-v1-api
  name: LangGraph Integrations (v1) API
  description: The Integrations (v1) API from LangGraph — 4 operation(s) for integrations (v1).
  humanURL: https://docs.langchain.com/langgraph-platform
  baseURL: https://api.host.langchain.com
  tags:
  - Integrations (v1)
  properties:
  - type: OpenAPI
    url: openapi/langgraph-integrations-v1-api-openapi.yml
  - type: Documentation
    url: https://docs.langchain.com/langgraph-platform
  - type: Repository
    url: https://github.com/langchain-ai/langgraph
  - type: Authentication
    url: https://docs.langchain.com/langsmith/create-account-api-key
- aid: langgraph:langgraph-listeners-v2-api
  name: LangGraph Listeners (v2) API
  description: The Listeners (v2) API from LangGraph — 2 operation(s) for listeners (v2).
  humanURL: https://docs.langchain.com/langgraph-platform
  baseURL: https://api.host.langchain.com
  tags:
  - Listeners (v2)
  properties:
  - type: OpenAPI
    url: openapi/langgraph-listeners-v2-api-openapi.yml
  - type: Documentation
    url: https://docs.langchain.com/langgraph-platform
  - type: Repository
    url: https://github.com/langchain-ai/langgraph
  - type: Authentication
    url: https://docs.langchain.com/langsmith/create-account-api-key
common:
- type: AgenticAccess
  url: agentic-access/langgraph-agentic-access.yml
- type: DomainSecurity
  url: security/langgraph-domain-security.yml
- type: Authentication
  url: authentication/langgraph-authentication.yml
- name: LangGraph
  url: https://www.langchain.com/langgraph
  type: Website
- name: LangGraph Documentation
  url: https://docs.langchain.com/langgraph-platform
  type: Documentation
- name: LangGraph GitHub
  url: https://github.com/langchain-ai/langgraph
  type: GitHub
- name: LangChain
  url: https://www.langchain.com/
  type: ParentCompany
- type: Integrations
  url: https://docs.langchain.com/oss/python/integrations/providers/overview
- url: https://www.langchain.com/blog/rss.xml
  type: Blog
integrations:
- name: light
- name: dark
- name: Downloads per month
- name: PyPI - Latest version
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com