Public beta on the Base Sepolia test network. Payments use test USDC with no real value: do not send real funds. The escrow contract has not had its external security audit yet, and the terms are drafts pending legal review. What the beta means
01 · On-chain escrow
Payments are locked in a smart contract and released only after inspection. Any two of three keys must turn together before money moves, so the platform can never open it alone.
02 · Multisig vault
Every order is locked in a three-layer vault: the platform signs the payment parameters, the delivered files leave a hash on record, and funds only move when two of the three keys turn together. Each step maps to one layer of the vault.
Example · not a real order
03 · Featured
04 · Compare
Paying a stranger for code, a licence or a website. Here is what changes depending on who holds the money.
| What matters | OpenVPT escrow | Private deal | Escrow agent |
|---|---|---|---|
| 01Who holds the money | A smart contract. No single party, OpenVPT included, can move it alone. | Whoever is paid first, usually the seller. | The agent, in its own account. |
| 02Can one side run off with it? | Not alone. Every payout needs 2 of 3 signatures: buyer, seller, platform. | Yes. Once one side has been paid, nothing stops them from disappearing. | The parties can't, but you rely on the agent itself being honest and solvent. |
| 03Delivery proof | Delivery is submitted in the order (files get a SHA-256 fingerprint), then the buyer inspects it (3 days by default). | Screenshots and chat logs. | Depends on the agent, usually the buyer's confirmation and paperwork. |
| 04Dispute handling | The buyer can open a dispute during inspection. Both sides have 72 hours to settle it with evidence; then an arbitrator decides, or the platform proposes the outcome if one side never responded. | No referee. Negotiate, or go to court. | The agent's own process, usually a manual review. |
| 05Speed of release | When the buyer confirms, the payout is submitted on-chain right away. No reply? When the inspection window ends, the platform signs the payout and the seller co-signs to collect it. | Instant, with no protection. | Often several days, depending on manual checks and bank transfers. |
| 06Fees | The buyer pays the listed price. 5% by default comes out of the seller's share, pro-rated on partial refunds. You pay the network gas for your own transactions. | No service fee. | A service fee that varies by provider, plus any bank charges. |
| 07On-chain verifiability | Payment and payout are public contract events anyone can check. | At most the transfer itself, not what was agreed. | No. You see the agent's own statements. |
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Traditional escrow terms vary by provider. This table describes typical practice, not any specific company.
05 · Sell on OpenVPT
List source code, templates, licences or whole projects. Buyers pay into a 2-of-3 multisig escrow first, so the USDC is already locked in the contract before you deliver.
The buyer pays exactly this price. Up to 6 decimal places.
The default fee is 5%, rounded down to the smallest USDC unit and taken from your share when the order settles. On a partial refund it is pro-rated to what you are paid.
Complete identity verification (KYC), then link your wallet by signing a message. You need both before you can list.
Set a price in USDC, a delivery time and an inspection window (3 days each by default). The platform reviews every listing before it goes live.
After ordering, the buyer has 24 hours to fund the escrow. Once it is funded, deliver files, a licence key or a checklist. When the buyer confirms, or the inspection window ends, the escrow releases your USDC with two of the three signatures.
06 · Latest writing
Practical notes on escrow, multisig and USDC on Base, written against how the product works today. For information only, not investment or legal advice.
Guides· 11 min read
Choose a listing, get USDC on Base, fund the escrow, inspect source code, SaaS licenses and website transfers, then confirm or open a well-evidenced dispute.
Product· 12 min read
When you can open a dispute, what counts as evidence, how arbitrators are assigned and rule, how splits are calculated, and how rulings settle on-chain.
Security· 11 min read
Buyer, seller, platform: any two must sign before funds move. EIP-712 signatures, the contract's checks, every signing combination and the platform's limits.
More guides and explainers on the blog.
All articles07 · FAQ
The short version of how payment, release and disputes work.
Payments are in USDC on the Base network, sent from your own wallet. You have 24 hours to pay after placing an order. Each payment request the platform signs is valid for 15 minutes and is refreshed automatically.
You also need a little ETH on Base for network gas.
Buyers pay the listed price, nothing more apart from network gas. The platform fee, 5% by default, comes out of the seller's share.
Example: when a 100 USDC order completes, the seller receives 95 USDC and the platform 5 USDC. If an arbitrator refunds 40 USDC to the buyer, the fee is pro-rated: the seller receives 57 USDC and the platform 3 USDC. A full refund carries no fee.
The seller delivers within the listing's delivery time (3 days by default). The buyer then has an inspection window (3 days by default).
As soon as the buyer confirms, the platform adds its signature and submits the payout on-chain. If the buyer does nothing, the platform signs a full payout when the window ends, and the seller adds their signature on the order page to receive it.
If the delivery deadline passes without a delivery, the order turns into a full refund. The platform signs it, you add your signature on the order page, and the whole amount goes back to your wallet with no fee.
During the inspection window the buyer can open a dispute instead of confirming. For the next 72 hours both sides can add evidence (text, links or files), write in the order chat and propose a split to each other.
Without an agreement the platform takes over: if the seller never responded it proposes a full refund, if only the buyer never responded it proposes releasing the payment to the seller, and otherwise an arbitrator decides the split, anywhere from a full refund to a full release. The platform signs only its side and one of the parties co-signs, so nothing is paid without a party's signature.
OpenVPT cannot move escrowed money on its own. Every payout needs two of three signatures (buyer, seller, platform), and the contract's owner cannot settle or withdraw. If the platform stopped operating, buyer and seller could still sign a settlement together and submit it to the contract.
To be clear about today: that path takes technical steps (signing typed data and calling the contract yourself), there is no standalone tool for it yet, and the contract has no automatic time-out release.
To sell, yes. Sellers need a verified identity (KYC) and a wallet confirmed by signing a message. Buying needs an account and a wallet; identity verification is only required for selling.
No. OpenVPT is a marketplace for digital products with escrowed payment. USDC is only the means of payment, and nothing on this site is investment, financial or legal advice.
08 · Start
Browse what's listed, or put your own code, licence or site up for sale. Payment waits in escrow until the delivery checks out.