Authentication

All API requests require a Bearer token in the Authorization header:

Authorization: Bearer cst_your_api_key_here

Getting Your Key

1. Open the Telegram Bot
2. Tap /start
3. Tap Profile — your API key is shown there
4. Tap the key to copy it

Key Format

API keys start with cst_ followed by a random string:

cst_a1b2c3d4e5f6g7h8i9j0k1l2m3n4o5p6q7r8s9t0u1v2

Regenerating Your Key

In the bot Profile screen, tap Regenerate Key. The old key stops working immediately. Cooldown: 10 minutes.

Errors

Status	Response	Meaning
401	{"ok": false, "error": "Authorization required"}	No Bearer token
401	{"ok": false, "error": "Invalid API key"}	Wrong key
403	{"ok": false, "error": "Account suspended"}	Banned