OpenAI API web search guide

Endpoint: POST https://onetoken.one/v1/responses
Tool:     tools: [{"type": "web_search"}]
Models:   gpt-5.5 / gpt-5.4 (tested)

curl https://onetoken.one/v1/responses \
  -H "content-type: application/json" \
  -H "authorization: Bearer YOUR_ONETOKEN_API_KEY" \
  -d '{
    "model": "gpt-5.4",
    "max_output_tokens": 8192,
    "tools": [{"type": "web_search"}],
    "input": "What new models has Anthropic released in the last week? Search the web and include source links."
  }'

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_ONETOKEN_API_KEY",  # The default group is sufficient
    base_url="https://onetoken.one/v1",
)

resp = client.responses.create(
    model="gpt-5.4",                  # or gpt-5.5
    max_output_tokens=8192,           # At least 8192 is recommended; reasoning tokens also use this limit
    tools=[{"type": "web_search"}],
    input="What new models has Anthropic released in the last week? Search the web and include source links.",
)

# 1) Final answer text
print(resp.output_text)

# 2) Actual search count for this request (used for billing)
search_calls = [item for item in resp.output if item.type == "web_search_call"]
print(f"This request performed {len(search_calls)} searches")

# 3) Source citations (structured url_citation)
for item in resp.output:
    if item.type == "message":
        for content in item.content:
            for ann in getattr(content, "annotations", []) or []:
                print(f"Source: {ann.title} | {ann.url}")