Troubleshooting
Fix common MCP connection, API key, and slot quota failures.
Troubleshooting
MCP add command fails
Check that your client supports streamable HTTP MCP servers. Claude Code uses
--transport http; Codex uses --url. Other clients may use a config file
with URL, transport, and headers fields.
API key returns 401
Confirm the header is exactly:
Authorization: Bearer YOUR_KEY
Create a fresh key in the dashboard if the key was revoked, copied with extra spaces, or never activated for the account.
No free slots
Slot quota errors mean all slots on your plan are currently claimed or a prior agent run did not release its slot. List current slots, release idle work, then retry:
browser_list_slots
browser_release_slot(slot: IDLE_SLOT)
browser_claim_slot
Session does not restore cleanly
Some sites rotate short-lived challenge or device cookies. Try loading the session while dropping those cookies:
browser_load_session(name: "your-session", drop_cookie_names: "cf_clearance")
Cloudflare or Turnstile challenge appears
Leave SHADE_PERSONALITY off unless you are deliberately testing personality
behavior. The default real Brave fingerprint is more reliable for challenge
pages than an injected personality profile.