Protocol CompatibilityDEVUP AI for LangGraph
Build LangGraph agents on DEVUP AI models. Point langchain-openai's ChatOpenAI at DEVUP AI once, and every node, tool loop and conversation thread runs on DEVUP AI.
System Architecture
How LangGraph Connects to DEVUP AI
Configuration
Two Settings That Matter
Base URL
Pass it as base_url of ChatOpenAI.
Model
Any catalog model ID, written exactly as listed.
Quick Start
Configure Once, Build Any Graph
devup_config.py
import os
from langchain_openai import ChatOpenAI
def devup_model(model: str = "deepseek-ai/DeepSeek-V4-Pro") -> ChatOpenAI:
return ChatOpenAI(
model=model,
base_url="https://api.devupai.com/v1",
api_key=os.environ["DEVUP_API_KEY"],
)basic_graph.py
from langgraph.graph import END, START, MessagesState, StateGraph
from devup_config import devup_model
model = devup_model()
def chatbot(state: MessagesState):
return {"messages": [model.invoke(state["messages"])]}
builder = StateGraph(MessagesState)
builder.add_node("chatbot", chatbot)
builder.add_edge(START, "chatbot")
builder.add_edge("chatbot", END)
graph = builder.compile()
result = graph.invoke({"messages": [{"role": "user", "content": "Reply with exactly: Salam DEVUP"}]})
print(result["messages"][-1].content)Capabilities
Supported Capabilities
Tool loops
ToolNode runs the tools the model calls, and tools_condition routes the graph back to the model until it answers.
Token streaming
stream_mode="messages" streams the model's tokens as each node runs.
Conversation memory
Compile with a checkpointer and pass a thread_id, and later calls continue from the saved state.
Local DZD billing
Metered billing in Algerian Dinar with BaridiMob, Edahabia, and CIB local payment support.
FAQ
LangGraph and DEVUP AI
Does LangGraph work with DEVUP AI?
Yes. Create ChatOpenAI from langchain-openai with base_url https://api.devupai.com/v1 and your DEVUP AI key. Graph nodes, tool loops, token streaming and checkpointer memory then run on DEVUP AI models.
Which API does LangGraph use with DEVUP AI?
ChatOpenAI sends its requests to the Chat Completions API, POST /v1/chat/completions, with the model ID exactly as written.
Which models can my graphs use?
Any model ID from the DEVUP AI catalog, written exactly as listed, such as deepseek-ai/DeepSeek-V4-Pro or openai/gpt-5.4-mini.
