Watsonx (gateway)

Route Watsonx calls through the Respan gateway with an OpenAI-compatible client. This setup uses your RESPAN_API_KEY; your application does not need to manage IBM Watsonx credentials directly.

Use a Watsonx model ID from your Respan model list. If your workspace uses a custom Watsonx deployment, use the model name shown in the platform.

Setup

$
pip install openai

$
export RESPAN_API_KEY="YOUR_RESPAN_API_KEY"

1
import os
2
from openai import OpenAI
3
4
client = OpenAI(
5
    api_key=os.environ["RESPAN_API_KEY"],
6
    base_url="https://api.respan.ai/api",
7
)
8
9
response = client.chat.completions.create(
10
    model="YOUR_WATSONX_MODEL_ID",
11
    messages=[{"role": "user", "content": "Say hello in three languages."}],
12
)
13
print(response.choices[0].message.content)

Switch models

Change the model parameter to use 250+ models from different providers through the same gateway.

1
response = client.chat.completions.create(model="YOUR_WATSONX_MODEL_ID", messages=messages)
2
response = client.chat.completions.create(model="gpt-5.5", messages=messages)
3
response = client.chat.completions.create(model="claude-sonnet-4-5-20250929", messages=messages)

See the full model list.