# Gradio API. Again. WebSocket connection: HTTP 403 **URL:** \ **Category:** Spaces\ **Created:** [March 6, 2025, 10:58am UTC](https://discuss.huggingface.co/t/gradio-api-again-websocket-connection-http-403/144416 "2025-03-06T10:58:35Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![dkmanika](https://avatars.discourse-cdn.com/v4/letter/d/d2c977/32.png) [@dkmanika](https://discuss.huggingface.co/u/dkmanika)\ **Post date:** [March 6, 2025, 10:58am UTC](https://discuss.huggingface.co/t/gradio-api-again-websocket-connection-http-403/144416/1 "2025-03-06T10:58:35Z")
Hello. Gradio space, public. Chat-bot works OK. Requests via Bash - OK. But when trying to connect by API from Telegram-bot: server rejected WebSocket connection: HTTP 403. On Space, requerements(parts): huggingface-hub\>=0.19.3 gradio==5.1.0 fastapi==0.112.2 gradio-client\>=1.3.0 urllib3~=2.0 On hosting, requirements: psutil huggingface-hub\>=0.19.3 openpyxl==3.1.2 pandas\>=2.1.0 transformers==4.35.0 torch\>=1.13.1 tokenizers\>=0.15.0,\<1.0 pymorphy2\>=0.8 regex\>=2023.10.3 python-telegram-bot==20.2 httpx\>=0.24.1 gradio-client\>=1.3.0. fastapi==0.112.2 python-dotenv==1.0.0 requests\>=2.28.2 urllib3~=2.0 python-telegram-bot\>=20.2 aiohttp\>=3.8.5 async-timeout==4.0.2 What else should i add in Requiremens or why API does not work? Help pls! 2+ weeks trying to fix… ---
**Author:** ![John6666](https://sea2.discourse-cdn.com/hellohellohello/user_avatar/discuss.huggingface.co/john6666/32/27664_2.png) [@John6666](https://discuss.huggingface.co/u/John6666)\ **Post date:** [March 6, 2025, 2:59pm UTC](https://discuss.huggingface.co/t/gradio-api-again-websocket-connection-http-403/144416/2 "2025-03-06T14:59:24Z")
The most common cause of connection failures from Gradio clients is a mismatch between the Gradio space and the Gradio client version. > > > I encountered an issue while using the Gradio client to connect to a Gradio appl…ication running at \`http://localhost:7860/\`. The client initially reports successful loading of the API, but attempts to establish a WebSocket connection are rejected by the server with an HTTP 403 (Forbidden) status code. > > \*\*Error Message:\*\* > > \`\`\` > Loaded as API: http://localhost:7860/ ✔ > GR job failed: server rejected WebSocket connection: HTTP 403 > File "/path/to/miniconda3/envs/gradioclient/lib/python3.10/concurrent/futures/thread.py", line 58, in run > result = self.fn(\*self.args, \*\*self.kwargs) > File "/path/to/miniconda3/envs/gradioclient/lib/python3.10/site-packages/gradio\_client/client.py", line 798, in \_inner > predictions = \_predict(\*data) > File "/path/to/miniconda3/envs/gradioclient/lib/python3.10/site-packages/gradio\_client/client.py", line 827, in \_predict > result = utils.synchronize\_async(self.\_ws\_fn, data, hash\_data, helper) > File "/path/to/miniconda3/envs/gradioclient/lib/python3.10/site-packages/gradio\_client/utils.py", line 540, in synchronize\_async > return fsspec.asyn.sync(fsspec.asyn.get\_loop(), func, \*args, \*\*kwargs) # type: ignore > File "/path/to/miniconda3/envs/gradioclient/lib/python3.10/site-packages/fsspec/asyn.py", line 103, in sync > raise return\_result > File "/path/to/miniconda3/envs/gradioclient/lib/python3.10/site-packages/fsspec/asyn.py", line 56, in \_runner > result\[0\] = await coro > File "/path/to/miniconda3/envs/gradioclient/lib/python3.10/site-packages/gradio\_client/client.py", line 1055, in \_ws\_fn > async with websockets.connect( # type: ignore > File "/path/to/miniconda3/envs/gradioclient/lib/python3.10/site-packages/websockets/legacy/client.py", line 637, in \_\_aenter\_\_ > return await self > File "/path/to/miniconda3/envs/gradioclient/lib/python3.10/site-packages/websockets/legacy/client.py", line 655, in \_\_await\_impl\_timeout\_\_ > return await self.\_\_await\_impl\_\_() > File "/path/to/miniconda3/envs/gradioclient/lib/python3.10/site-packages/websockets/legacy/client.py", line 662, in \_\_await\_impl\_\_ > await protocol.handshake( > File "/path/to/miniconda3/envs/gradioclient/lib/python3.10/site-packages/websockets/legacy/client.py", line 329, in handshake > raise InvalidStatusCode(status\_code, response\_headers) > > Loaded as API: http://localhost:7860/ ✔ > GR job failed again: server rejected WebSocket connection: HTTP 403 > ... (same stack trace as above) > \`\`\` > > \*\*Steps to Reproduce:\*\* > > 1. python generate.py --base\_model=TheBloke/Mistral-7B-Instruct-v0.2-GGUF --prompt\_type=mistral --max\_seq\_len=4096 > 2. Run the Gradio client code. > \`\`\` > import time > import os > import sys > > from gradio\_utils.grclient import GradioClient > > \# self-contained example used for readme, to be copied to README\_CLIENT.md if changed, setting local\_server = True at first > \# The grclient.py file can be copied from h2ogpt repo and used with local gradio\_client for example use > > if local\_server: > client = GradioClient("http://0.0.0.0:7860") > else: > h2ogpt\_key = os.getenv('H2OGPT\_KEY') or os.getenv('H2OGPT\_H2OGPT\_KEY') > if h2ogpt\_key is None: > sys.exit("API key not found. Exiting.") > # if you have API key for public instance: > client = GradioClient("https://gpt.h2o.ai", h2ogpt\_key=h2ogpt\_key) > > > print(client.question("Who are you?")) > \`\`\` > > \* \*\*Environment:\*\* > \* Operating System: Ubuntu 22.04.4 LTS > \* gradio: 4.26.0 > \* gradio\_client: 0.6.1 > > > \* \*\*Note:\*\* > I suspect this is due to internal network restrictions and using 127.0.0.1 should ideally work. Unfortunately it doesn't.