Dappnode Nexus Gateway

The open-source API gateway behind Dappnode Nexus, a unified, OpenAI-compatible API for accessing multiple AI models.

Open Nexus · Browse models · Get help

Get started

1. Sign in to Nexus.
2. Choose a subscription or add credit from Billing.
3. Create a key from API Keys and store it securely. The key is shown only once.
4. Choose a model ID from Models.

Use the following OpenAI-compatible connection settings:

Setting	Value
Base URL	https://nexus-api.dappnode.com/v1
Authentication	Authorization: Bearer YOUR_API_KEY

Make a request

Set NEXUS_API_KEY in your environment and replace MODEL_NAME with a model from your Nexus dashboard.

curl https://nexus-api.dappnode.com/v1/chat/completions \
  -H "Authorization: Bearer ${NEXUS_API_KEY}" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "MODEL_NAME",
    "messages": [
      {"role": "user", "content": "Hello!"}
    ]
  }'

OpenAI Python client

pip install openai

import os

from openai import OpenAI

client = OpenAI(
    api_key=os.environ["NEXUS_API_KEY"],
    base_url="https://nexus-api.dappnode.com/v1",
)

response = client.chat.completions.create(
    model="MODEL_NAME",
    messages=[{"role": "user", "content": "Hello!"}],
)

print(response.choices[0].message.content)

API compatibility

Endpoint	Description
GET /v1/models	Lists the available models, prices and capabilities.
POST /v1/chat/completions	Creates chat completions; supports streaming.

Supported capabilities depend on the selected model and can include streaming, tool calls, parallel tool calls, structured outputs and reasoning. The current capabilities for each model are shown in the model catalog.

Privacy and usage controls

Nexus provides per-key PII masking settings and access to privacy-focused models. Configure these options from API Keys, and monitor requests, tokens and costs from Usage. See the Privacy Policy for details about how Nexus processes data.

Help and feedback

• Read the Nexus help guide.
• Join the Dappnode Discord community.
• Report a problem through GitHub Issues.

Contributing

Contributions are welcome. See CONTRIBUTING.md for the development workflow.

License

Licensed under Apache-2.0. Bundled dependency notices are available in THIRD_PARTY_NOTICES.md.