FAQ
Questions, answered
Everything merchants ask before their first payment, and most of what they ask afterwards.
Getting started
Does my customer need a Droppy account?
No. They open the link, scan the QR or press Pay, and confirm in their own wallet. Only the merchant creating links signs in, and that is done by signing a message with a wallet — there is no password to create.
Which assets can I accept?
ETH, the native gas token of Robinhood Chain, and USDG — Global Dollar, the Paxos-issued stablecoin at 0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168. Both addresses and decimals are verified against the official Robinhood Chain documentation and the chain itself.
Why USDG and not USDC?
Robinhood Chain has no canonical USDC deployment. USDC bridged from Ethereum, Arbitrum, Base or Solana arrives as USDG. Rather than guess at an address, Droppy ships USDC disabled and says so plainly in Settings.
How do I sign in?
Connect a wallet, then press Sign in. Your wallet shows a plain text message to sign — it is not a transaction and cannot move funds. The signature proves you control the address, and Droppy sets a session cookie. Nothing else is stored about you.
Can I receive payments to a different wallet than I sign in with?
Not today. The receiving address is always the wallet you signed in with, which is what makes it impossible for anyone to create links pointing at someone else's wallet. Separate payout addresses are on the roadmap.
Payments and settlement
When exactly is a payment marked paid?
After the server fetches the transaction receipt from a Robinhood Chain node and confirms four things: the receipt succeeded, the funds reached the link's address, the amount is at least what was requested, and the transaction has at least two confirmations. A wallet saying it submitted a transaction is never enough.
Does Droppy hold my money?
No. Droppy is non-custodial. Funds move directly from your customer's wallet to the address you signed in with. We only read the chain — we cannot move, freeze or reverse anything.
What if a customer underpays or pays late?
Underpayment is rejected and reported with both figures, so a link never flips to paid on a partial amount. Links carry an expiry (24 hours by default); an expired link stops accepting payment and tells the payer to ask for a new one.
What happens if my customer sends on the wrong network?
Those funds cannot be recovered by Droppy or anyone else — this is true of all blockchain payments. The checkout page states the network prominently, warns before payment, and offers a one-press network switch when a connected wallet is on the wrong chain.
Can one transaction pay two links?
No. A transaction hash already recorded against a link is refused for any other link. This is enforced in the application, inside a database transaction that locks the row, and by a unique index in PostgreSQL as a final backstop.
What if I close the page mid-payment?
Nothing is lost. Status lives in the database, not the browser. Reopen the link and it shows the current state; verification is idempotent, so re-checking the same transaction always converges on the same answer.
Security and privacy
Will Droppy ever ask for my seed phrase or private key?
Never, for any reason. There is no field anywhere in the product that accepts one. Any site or person asking for your seed phrase is attempting to steal from you.
What data do you store?
Payment links and their amounts, invoice ids and descriptions you enter, your wallet address, the transaction hashes that settle payments, and timestamps. No names, no emails, no documents, and no analytics profile.
Is the code audited?
Droppy has not had a third-party security audit. The verification logic, authorization model and settlement invariants are covered by an automated test suite that runs against the real database and the live chain, and the security model is documented in full on the Security page.
Developers and pricing
Is there an API?
Yes — a small JSON API to create links, read their status and verify a transaction. It uses the same wallet-signature session as the dashboard. See the Developers and Docs pages.
What does Droppy cost?
Droppy charges no fee per payment. You pay only the network gas fee for your own transactions, which on Robinhood Chain is a fraction of a cent. See Pricing for detail.
Are there webhooks?
Not yet. Today you poll the link status endpoint, which is idempotent and rate limited at 60 requests per minute. Webhooks are on the roadmap.
Ready to accept crypto?
Create your first payment link in under a minute. No signup form, no API key.