API reference

Call	Returns
`scfg.add_chain(key, name, chain_id, rpc, tokens, confirmations, explorer_tx, ...)`	Nothing. Adds your own EVM chain; call before `configure()` (details)
`scfg.configure(wallet=None, ..., solana_wallet=None)`	Nothing. Needs `wallet` or `solana_wallet` (or both); see All `configure()` options
`scfg.pay(kind, item=None, amount=None, token=None, callback=None)`	`PaymentResult`, when the payment screen closes
`scfg.owns(item_id)`	`True` if a stored, verified payment unlocks the item. Instant, works offline
`scfg.has_tipped()` / `scfg.tip_total()`	Supporter status / total tipped (USD)
`scfg.restore(callback=None)`	`RestoreResult`; shows the restore screen
`scfg.receipts()` / `scfg.pending()`	Stored receipts / payments still being watched
`scfg.export_receipts(path=None)`	Writes receipts as JSON (for support requests)
`scfg.supported()`	Always `True` (the web build included). If you used it to keep your web build free, check `renpy.emscripten` instead
`scfg.clear_local_data()`	Testing helper: forgets receipts and pending payments on this device, so you can see your paywall again. Payments stay on the chain, and Restore brings them back
`scfg.on_result = fn`	Handler for results that arrive with no live callback (e.g. after a restart)
`scfg.notify = True`	Show a "Payment confirmed" notification

PaymentResult fields:

status: "paid", "already_owned", "cancelled", "expired", "underpaid", "failed" or "pending"
kind, item, amount (actually paid), token, chain, tx_hash, payer, session_id, error

"pending" means the player chose Continue playing. The plugin keeps watching in the background, across restarts, for up to 24 hours.