Nexus

Use Nexus router models with Agno agents.

v2.0.6

Nexus is a routing platform that provides endpoints for various Large Language Models through a unified API interface.

Explore Nexus’s capabilities and documentation here.

Authentication

Nexus requires API keys for the underlying model providers. Set the appropriate environment variables for the models you plan to use:

Mac

export OPENAI_API_KEY=***
export ANTHROPIC_API_KEY=***

setx OPENAI_API_KEY ***
setx ANTHROPIC_API_KEY ***

Example

Use Nexus with your Agent:

agent.py

from agno.agent import Agent
from agno.models.nexus import Nexus

agent = Agent(model=Nexus(id="anthropic/claude-sonnet-4-20250514"), markdown=True)

# Print the response in the terminal
agent.print_response("Share a 2 sentence horror story")

View more examples here.

Params

Parameter	Type	Default	Description
id	str	"gpt-4o-mini"	The id of the model to use through Nexus
name	str	"Nexus"	The name of the model
provider	str	"Nexus"	The provider of the model
api_key	Optional[str]	None	The API key for Nexus (defaults to NEXUS_API_KEY env var)
base_url	str	"https://api.nexusflow.ai/v1"	The base URL for the Nexus API

Nexus also supports the params of OpenAI.