Cloudflare worker as a proxy to the OpenAI API

This Cloudflare worker serves as a proxy to the OpenAI API. I created it to address two issues:

1. Some countries and territories are still not supported by the OpenAI API.
2. There are many ChatBot clients that request the API key, even though OpenAI discourages sharing it.

By accessing the OpenAI API through the Cloudflare worker, clients from all countries can access the API. The access key mechanism also allows you to keep the real API key private.

Usage

Setting up the secrets to the Cloudflare worker

To set up secrets for the Cloudflare worker, follow these steps:

1. Run wrangler secret put OPENAI_API_KEY to set the OpenAI API key.
2. Run wrangler secret put ACCESS_KEYS to set the access key.

The ACCESS_KEYS is a comma separated list of access keys. Each access key is a string of "sk-{user_name}-{random_string}", for example "sk-Tom-2Hf3aTUVlG". You could run node src/key.mjs user_name to generate the access keys.

❯ node src/key.mjs Tom
sk-Tom-wMtF9kkGDu

Deploy to Cloudflare

Run wrangler deploy to deploy the worker to Cloudflare.

Client Setting

Now you can use the URL of this worker as the base URL of the OpenAI API, and the access key as the OpenAI API key to access the OpenAI API.

import openai

openai.api_key = "sk-Tom-wMtF9kkGDu"
openai.api_base = "https://openai-proxy.yourname-8235.workers.dev"

# create a chat completion
chat_completion = openai.ChatCompletion.create(
    model="gpt-3.5-turbo", messages=[{"role": "user", "content": "Hello world"}]
)

# print the chat completion
print(chat_completion.choices[0].message.content)