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.

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Authentication

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

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Example

Use Nexus with your Agent: 
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.

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Params

ParameterTypeDefaultDescription
idstr"openai/gpt-4"The specific model ID used for generating responses. Format typically follows "provider/model-name".
namestr"Nexus"The name identifier for the Nexus agent.
providerstr"Nexus"The provider of the model.
base_urlstr"http://localhost:8000/llm/v1/"The base URL for making API requests to the Nexus service.
Nexus also supports the params of OpenAI.