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docs: update README for chunked ChatGPT session cookies

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Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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JesseMarkowitz
2026-04-19 22:32:01 -04:00
parent 19bfdaecbe
commit 4798edcea7
1 changed files with 8 additions and 3 deletions
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README.md
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@@ -91,7 +91,7 @@ Session tokens are how your browser stays logged in. This tool uses them to acce
| Provider | Cookie Name | Lifetime | Expiry Detection | | Provider | Cookie Name | Lifetime | Expiry Detection |
|----------|-------------|----------|-----------------| |----------|-------------|----------|-----------------|
| ChatGPT | `__Secure-next-auth.session-token` | ~7 days | JWT `exp` claim (decoded automatically) | | ChatGPT | `__Secure-next-auth.session-token.0` + `.1` | ~7 days | JWT `exp` claim (decoded automatically) |
| Claude | `sessionKey` | ~30 days | Only detectable via 401 response | | Claude | `sessionKey` | ~30 days | Only detectable via 401 response |
### Finding Tokens in Chrome DevTools ### Finding Tokens in Chrome DevTools
@@ -102,7 +102,11 @@ Session tokens are how your browser stays logged in. This tool uses them to acce
4. In the left panel, expand **Cookies** and click the site URL 4. In the left panel, expand **Cookies** and click the site URL
5. Find the cookie by name and copy its **Value** 5. Find the cookie by name and copy its **Value**
**ChatGPT:** go to `https://chatgpt.com` → find `__Secure-next-auth.session-token` → copy Value (starts with `eyJ`) **ChatGPT:** go to `https://chatgpt.com` → find **two** cookies:
- `__Secure-next-auth.session-token.0` — copy Value (starts with `eyJ`) → `CHATGPT_SESSION_TOKEN`
- `__Secure-next-auth.session-token.1` — copy Value → `CHATGPT_SESSION_TOKEN_1`
ChatGPT splits large session tokens across two cookies to stay under the browser's 4KB cookie limit. Both are required.
**Claude:** go to `https://claude.ai` → find `sessionKey` → copy Value **Claude:** go to `https://claude.ai` → find `sessionKey` → copy Value
@@ -138,7 +142,8 @@ cp .env.example .env
| Variable | Description | | Variable | Description |
|----------|-------------| |----------|-------------|
| `CHATGPT_SESSION_TOKEN` | Your ChatGPT JWT session token (`eyJ…`) | | `CHATGPT_SESSION_TOKEN` | ChatGPT session token chunk `.0` (starts with `eyJ…`) |
| `CHATGPT_SESSION_TOKEN_1` | ChatGPT session token chunk `.1` (the remainder) |
| `CHATGPT_PROJECT_IDS` | Comma-separated ChatGPT project IDs (see below) | | `CHATGPT_PROJECT_IDS` | Comma-separated ChatGPT project IDs (see below) |
| `CLAUDE_SESSION_KEY` | Your Claude session key | | `CLAUDE_SESSION_KEY` | Your Claude session key |