For Day Pass key recovery, email support@zambo.dev with the payment reference for your purchase: your PayPal order reference or Base transaction hash. You may also include the public verifiable receipt URL. Staff will verify the payment and whether the pass is still active before reissuing access.
Never send your access key. We cannot recover a key from an email address alone, and there is no public email-only lookup. A staff member can use the verified paid payment reference to rotate the key on an active pass; the old key stops working and the original expiry does not change. Each staff support request is idempotent: retrying that same case cannot rotate or reveal another key. A new verified support case may request another rotation while the pass remains active.
Want receipts for your own AI work?
Add Zambo to your AIZambo gives AI work a receipt you can check. For people: add Zambo to your AI app and ask for a job. These technical links are for developers and AI agents.
One hosted MCP at https://zambo.dev/mcp.
Check the proof for recorded tool calls (verify a receipt).
Agents: 24-hour Day Pass, $0.99 USDC on Base via x402, not per call. People: Zambo Pass $29 for 30 days or $290 for 365 days, one payment. No subscription. No automatic renewal.