FAQ

Questions, answered

Sendbase is self-custodial stablecoin infrastructure. Businesses and developers use it to accept USDT and USDC, automate payments with a Stripe-compatible API, and give AI agents their own spend-capped wallet. Individuals use it to swap stablecoins for local currency, peer-to-peer. In every case you hold your own keys; Sendbase never takes custody of your funds, and everything settles on BNB Smart Chain, verifiable on BscScan.

The account is free to open, with no monthly fees and no setup cost. You only pay when a transaction settles on-chain: 0.2% + $0.20 on each payment you collect through a payment link, hosted checkout, or the API, plus a small fee on sends and P2P swaps. Opening your account, holding stablecoins, and receiving deposits are always free. See pricing.

Yes. Alongside stablecoins, you can accept card payments using your own Stripe account. Card checkout runs directly on your Stripe, so the card money lands in your Stripe balance. It is not Stripe Connect: Sendbase never touches the card funds and takes no cut on them (only Stripe's own fees apply).

Both. Businesses can accept agent payments via the x402 standard, charging per API call in USDT or USDC. You can also give your own AI agents a spend-capped wallet with per-transaction, daily and monthly limits plus an address allowlist. See AI agents.

Yes. With Business P2P you can cash USDT out to your local currency, or buy USDT with cash, directly with a counterparty you invite by email. On-chain escrow locks the USDT before any cash moves and only releases once both sides confirm. Sendbase never touches the cash or the crypto, and your counterparty does not need a crypto wallet. See on-ramp & off-ramp.

Yes. Your company wallet keys are generated on your device and split into encrypted shares; Sendbase only ever holds an encrypted share it cannot reconstruct or sign with. You get a 24-word backup phrase (importable into any EVM wallet), plus passkey and 2FA protection. Everything settles on BNB Smart Chain and is verifiable on BscScan.

Those are crypto exchanges that hold your money for you and can freeze it, pause withdrawals, or lose it. Sendbase is not an exchange and never holds your money; funds settle straight to a wallet only you can move, so there is nothing for us to freeze, block, or lose.

Sendbase supports USDT and USDC (BEP-20) on BNB Smart Chain. Businesses can accept either or both and let the customer choose at checkout. The personal peer-to-peer product currently focuses on USDT against local currencies.

Yes. Sendbase is self-custodial, so we never hold or touch your assets. During a swap the USDT sits in an on-chain smart-contract escrow that Sendbase cannot drain, freeze, or divert, and it only releases once both sides complete. Your wallet key is split into 2-of-3 MPC shares and our server holds just one, so it can never move your assets on its own. See personal.

For a business account, head to business.sendbase.io and sign up with your email. For a personal account, go to app.sendbase.io. Developers can start at docs.sendbase.io.

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