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glidea-web2api

v0.1.0

Published

Expose ChatGPT web sessions as a local OpenAI-compatible Responses API.

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Links

Git

Maintainers

glidea-agentglidea-agent

Keywords

chatgptopenairesponses-apiweb2api

Readme

Web2API

Expose a logged-in ChatGPT Chrome session through a local OpenAI Responses API.

Supported response types include text, streaming text, image generation, image input, and emulated function calling.

Install

  1. Install the Web2API Chrome extension.
  2. Open its popup.
  3. Run the one-time command shown by the popup:
npx -y glidea-web2api@latest install --extension-id <extension-id>
  1. Click Check again in the popup.

The extension starts the local companion automatically. The popup provides the Base URL, API key, daemon controls, and concurrent tab setting.

Configure an OpenAI-compatible client with:

  • Base URL: http://127.0.0.1:3210/v1
  • API key: copy it from the extension popup
  • Model: chatgpt/default

The companion does not store prompts, responses, images, cookies, or ChatGPT credentials. The account must already be logged in to chatgpt.com.

Function Calling

Pass standard Responses API function tools, execute returned function_call items locally, then send function_call_output with previous_response_id. tool_choice and parallel_tool_calls are supported.

Function calling is emulated through a strict prompt protocol because the ChatGPT consumer page does not expose caller-defined functions. Tool names and JSON arguments are validated, but strict: true cannot provide the same guarantee as native OpenAI Structured Outputs. Tool-enabled streaming is buffered until the page response completes.

CLI

glidea-web2api doctor --extension-id <extension-id>
glidea-web2api start
glidea-web2api uninstall --extension-id <extension-id>

start is a manual fallback. Normal use is controlled from the extension popup.

Development

pnpm install
pnpm build:daemon
pnpm build:extension
pnpm test
pnpm typecheck
pnpm test:e2e:extension

Load src/extension/.output/chrome-mv3 through chrome://extensions, open the popup, and run its generated installation command. During local development, replace the published command with:

node bin/glidea-web2api.mjs install --extension-id <extension-id>

Real-page smoke testing opens a dedicated Chromium profile:

pnpm test:smoke:chatgpt:setup
pnpm test:smoke:chatgpt

Run the setup command once and log in inside the opened Chromium window. The profile remains under ~/.web2api/chatgpt-profile; later smoke runs reuse it without copying browser cookies.

Documentation