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.