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A young merchant and adviser reviewing a policy document together.
Legal — Merchant Agreement

Merchant Agreement

Last updated 21 May 2026 10 sections · roughly a 5-minute read

LinkSell charges a flat monthly fee and never a commission. This agreement covers how that fee is billed and what each side owns.

01 The relationship

This Merchant Agreement sets out the commercial terms between LinkSell and a merchant. It supplements the Terms of Service; where the two conflict on a billing matter, this agreement governs.

LinkSell provides software. The merchant runs their own business and owns the relationship with their buyers.

02 Flat subscription fee

LinkSell bills the merchant a flat recurring subscription fee for the merchant’s chosen plan tier. The fee is fixed per billing cycle and does not vary with payment volume.

LinkSell takes no per-transaction commission and no percentage of any payment. Every USDC a buyer pays reaches the merchant wallet in full.

03 How the fee is billed

The subscription fee is itself billed over x402: each cycle LinkSell issues the merchant an invoice with a renewal payment link to the platform wallet. EIP-3009 authorizations are single-use, so there is no stored-card-style auto-debit — each renewal is an explicit payment by the merchant.

Plan tiers, prices, and cycle length are shown in the merchant console at the point of subscribing.

04 Merchant owns settlement

The merchant supplies and controls the wallet that receives buyer payments. The merchant is solely responsible for the security of that wallet and its keys.

A payment link cannot go live until the merchant has a verified settlement wallet. LinkSell verifies wallet ownership but never holds the wallet’s keys and never moves funds out of it.

05 LinkSell is not a dispute intermediary

Because funds settle directly from buyer to merchant and never pass through LinkSell, LinkSell is not a chargeback or dispute intermediary. LinkSell cannot reverse, claw back, or freeze an on-chain payment.

Refunds are a merchant-initiated USDC transfer made by the merchant from their own wallet. The console can record a refund for bookkeeping; it does not move funds.

06 Plan changes and downgrades

A merchant may change plan tier from the console. An upgrade takes effect immediately; a downgrade takes effect at the end of the current cycle. Plan-gated features (such as developer API access) become unavailable when a downgrade takes effect.

07 Non-payment

If a renewal invoice is not paid, LinkSell runs a dunning sequence of reminder emails. After the dunning window closes without payment, the account is downgraded to the free tier or suspended. Payments already settled on-chain are unaffected; the merchant’s hosted checkout pages may stop serving.

08 Taxes

The merchant is responsible for determining, collecting, and remitting any taxes due on the merchant’s own sales. LinkSell does not calculate or remit the merchant’s sales taxes.

LinkSell’s own subscription fees are quoted exclusive of Value-Added Tax. Where Turkish VAT applies (or where a destination-country VAT or sales tax applies under local rules), it will be added to the invoice and shown separately. Each merchant remains responsible for any withholding or reverse-charge mechanism in its own jurisdiction.

09 Term and cancellation

This agreement runs for as long as the merchant holds an active LinkSell account. The merchant may cancel at any time from the console; cancellation stops future renewals and takes effect at the end of the paid cycle. Fees already paid are non-refundable except where required by law.

10 Contact

Billing and account questions can be sent to [email protected].