Deposit and Sweep API: Automate Stablecoin Deposit Collection

The MPCVault Deposit and Sweep API connects customer deposits to your workflow seamlessly. Merchants, marketplaces, gaming platforms, exchanges, payment processors and any other company accepting stablecoin deposits can assign dedicated deposit addresses, receive signed transfer notifications, and automatically collect USDC/USDT. MPCVault’s workflow automation tools provide the infrastructure for companies to embed user payments directly into their application. 

The Problem: Attributing, Verifying, and Sweeping Every Customer Deposit

To accept customer deposits, a platform must identify who sent the funds, verify the transfer, credit the correct balance, and move each deposit into a central collection wallet. Every company that accepts user deposits has to solve this, and building it takes engineering time away from the core product.

Dedicated addresses solve attribution, but each address must then be monitored and swept. On EVM networks, an address that holds only stablecoins also needs native tokens for gas before any funds can be moved out of it. With hundreds of customer addresses, your team becomes responsible for gas funding, sweep execution, and exception handling on top of the product itself.

Solution: MPCVault’s Deposit and Sweep APIs

MPCVault manages this workflow from start to finish. Your backend requests dedicated deposit addresses through the API, using your own customer references. When a transfer arrives, MPCVault sends a signed webhook in real time with the details your application needs to verify the deposit and credit the customer. 

USDC and USDT deposits are then swept automatically to your preconfigured collection address. MPCVault funds the gas and executes each sweep, and a small network fee is deducted from the swept amount.

Supported networks include Ethereum, Arbitrum, Base, Polygon, BSC, and Solana.

How Your Business Benefits

• Shorter development cycles: Deposit attribution, monitoring, gas funding, and sweeping are available through a single API, so your engineers can focus on the customer experience.

• Operations that scale with your user base: Every new deposit address normally adds monitoring, gas, and collection work. MPCVault absorbs that work, so your operational workload does not grow with each new customer.

• Protection against fraudulent deposits: Forged notifications and counterfeit tokens can lead a business to credit funds it never received. Every webhook is Ed25519-signed, and tokens are identified by contract address rather than by symbol. Two-stage confirmations and reorg notifications prevent crediting transfers that are later rolled back.

Integrate Our Deposit Workflow Today

Whether your customers are funding a trading position or off-ramping to fiat, MPCVault can take deposit collection off your engineering roadmap. MPCVault has helped hundreds of teams automate their workflows. Sweep is enabled per account, and our team configures your collection address and webhook URL during onboarding. Book a call with our team to review your deposit flow and plan an integration.