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Realtime: add user agent header #1185

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Jul 21, 2025
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Realtime: add user agent header #1185

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7 changes: 6 additions & 1 deletion src/agents/realtime/openai_realtime.py
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Original file line number Diff line number Diff line change
Expand Up @@ -62,6 +62,7 @@

from ..exceptions import UserError
from ..logger import logger
from ..version import __version__
from .config import (
RealtimeModelTracingConfig,
RealtimeSessionModelSettings,
Expand Down Expand Up @@ -97,6 +98,8 @@
RealtimeModelSendUserInput,
)

_USER_AGENT = f"Agents/Python {__version__}"
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We already have this constant in several source files, so it may be about time to have a single unified one. That said, you can go ahead for now, and we can refactor later on.


DEFAULT_MODEL_SETTINGS: RealtimeSessionModelSettings = {
"voice": "ash",
"modalities": ["text", "audio"],
Expand Down Expand Up @@ -160,7 +163,9 @@ async def connect(self, options: RealtimeModelConfig) -> None:
"Authorization": f"Bearer {api_key}",
"OpenAI-Beta": "realtime=v1",
}
self._websocket = await websockets.connect(url, additional_headers=headers)
self._websocket = await websockets.connect(
url, user_agent_header=_USER_AGENT, additional_headers=headers
)
self._websocket_task = asyncio.create_task(self._listen_for_messages())
await self._update_session_config(model_settings)

Expand Down