langgraph-graph-api

Execute compiled LangGraph graphs with invoke, stream, and batch patterns.

3|1|Updated Jan 31, 2026
One-click install
npx skills add https://github.com/christian-bromann/langchain-skills --skill langgraph-graph-api
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: langgraph-graph-api
Source: https://github.com/christian-bromann/langchain-skills/tree/main/skills/langgraph-graph-api/python
Command: npx skills add https://github.com/christian-bromann/langchain-skills --skill langgraph-graph-api

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Compiled LangGraph workflows require a unified API to execute, observe results, and debug complex graphs with persistence and streaming support.

Core Features & Use Cases

  • Compile graphs from builders and execute with invoke, stream, or batch
  • Persist state with thread_id and support async variants ainvoke/astream
  • Visualize graph structures and inspect components via graph getters and Mermaid diagrams
  • Debug and monitor long-running workflows in chatbots, data pipelines, and automation

Quick Start

Create a LangGraph StateGraph, compile it, and then invoke or stream it using a thread_id to start execution.

Frequently Asked Questions about langgraph-graph-api

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I execute a compiled LangGraph workflow?▼

To execute a compiled LangGraph workflow, you can use invoke, stream, or batch execution patterns after compiling the graph from a StateGraph builder.

Can I persist LangGraph state across multiple executions?▼

Yes, you can persist LangGraph state across executions by assigning a thread_id to your graph execution, which allows you to maintain context and resume long-running workflows.

What is the best way to visualize a LangGraph structure for debugging?▼

The best way to visualize a LangGraph structure for debugging is by generating Mermaid diagrams, which allow you to inspect graph components and monitor complex workflows visually.

Does LangGraph support asynchronous execution for streaming workflows?▼

Yes, LangGraph supports asynchronous execution through async variants like ainvoke and astream, enabling you to run and stream complex graph workflows without blocking operations.

How do I run multiple inputs through a compiled LangGraph simultaneously?▼

You can run multiple inputs through a compiled LangGraph simultaneously by using the batch execution pattern, which processes collections of inputs efficiently in a single operation.

Why do I need to compile a LangGraph before invoking it?▼

You need to compile a LangGraph before invoking it because the compilation step validates the graph structure and prepares the StateGraph builder for execution patterns like invoke and stream.