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gptsession2cpaandsub2api

repository·main·Indexed 23 days ago

https://github.com/gtxx3600/gptsession2cpaandsub2api

A client-side utility for converting ChatGPT Web session JSON into authentication formats for third-party Codex and API proxy tools. Supported target formats include CPA, sub2api, Cockpit Tools, 9router, Codex (native auth.json), AxonHub, and Codex-Manager. The tool operates entirely in the browser to ensure tokens are not uploaded to a server.

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What's inside gptsession2cpaandsub2api

  1. Overview of ChatGPT Session Conversion Tool

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    This project is a pure front-end single-page tool designed to convert ChatGPT Web login session JSON files into importable JSON formats for various third-party tools.

    Supported target tools include:

    • CPA
    • sub2api
    • Cockpit Tools
    • 9router
    • Codex (native auth.json)
    • AxonHub
    • Codex-Manager

    Important Limitations:

    • No Phone Bypass: This tool can no longer be used to bypass Codex OAuth add phone / mobile verification requirements due to OpenAI restrictions.
    • Token Expiration: ChatGPT Web sessions typically do not contain a refresh_token. Consequently, once the access_token expires, it cannot be automatically refreshed.
    • Account Permissions: Converting a Free account session will not grant access to models or features requiring a paid subscription.

  3. Run the tool locally

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    Since this is a pure front-end tool, you can run it locally by opening the HTML file in any modern web browser.

    Privacy Note: All parsing and conversion happen locally in your browser. Tokens are not uploaded to any server and are not written to local storage.

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  4. Supported input formats

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    The tool accepts pasted or dragged-in JSON files from the following sources:

    • ChatGPT Web Session JSON: Must contain fields like user.email, accessToken, sessionToken, expires, account.id, or account.planType.
    • 9router Codex OAuth JSON: Includes accessToken, refreshToken, expiresAt, and providerSpecificData.chatgptAccountId.
    • Codex Native auth.json: Includes auth_mode, OPENAI_API_KEY, tokens.access_token, tokens.refresh_token, tokens.id_token, tokens.account_id, and last_refresh.
    • AxonHub Codex auth.json: Includes tokens.access_token, tokens.refresh_token, tokens.id_token, and last_refresh.
    • Codex-Manager Batch Import JSON: Includes tokens.access_token, tokens.refresh_token, tokens.id_token, and meta.label.

    The tool attempts to supplement missing data (email, account ID, user ID, plan type, and expiration) by parsing the JWT payload of the accessToken.

  5. Supported output formats

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    The tool generates specific JSON structures for the following targets:

    • CPA: Generates Codex CPA auth JSON with type: "codex", access_token, session_token, id_token, email, account_id, plan, and expiration. If id_token is missing, it constructs placeholder JWT claims.
    • sub2api: Generates a structure compatible with CPA2sub2API (exported_at/proxies/accounts) with platform: "openai" and type: "oauth". expires_at is derived from the JWT exp claim.
    • Cockpit: Generates a flat token format for Cockpit Tools including id_token, access_token, refresh_token, account_id, email, and expired.
    • 9router: Generates 9router Codex OAuth JSON including accessToken, refreshToken, expiresAt, providerSpecificData, provider, authType, priority, isActive, createdAt, and updatedAt.
    • Codex: Generates native auth.json with auth_mode: "chatgpt" and OPENAI_API_KEY: null. If refresh_token is missing, it is set to an empty string.
    • AxonHub: Generates AxonHub Codex auth.json with auth_mode: "chatgpt". If refresh_token is missing, it uses the placeholder __missing_refresh_token__.
    • Codex-Manager: Generates batch import JSON including tokens.access_token/refresh_token/id_token and meta.label/workspace_id/chatgpt_account_id/note. Missing refresh_token values are set to an empty string to prevent incorrect refresh attempts.