This runs the real SEP flow against this anchor — SEP-1 discovery, SEP-10 login by signing with a key, SEP-6 deposit and withdraw — with real transactions on Stellar testnet. No wallet app, no API key. Your identity is a throwaway key generated here; you play the bank.
This is the SEP door of this anchor, run in your browser. It is the regional (Türkiye / BiLira, TRY⇄USDC) counterpart to the Stellar Development Foundation's generic test-anchor explorer in the Regional Starter Pack — that one points at SDF's generic testanchor.stellar.org; this one drives tr-mock-anchor.fly.dev. See the generic one: regionalstarterpack.com/testanchor.
The same door works from any Stellar wallet: open demo-wallet.stellar.org with home domain tr-mock-anchor.fly.dev. Transactions are on stellar.expert.