Stripe, PayPal, Square, and Adyen have all categorically rejected MCC 5122. Here's the rail that hasn't.
Peptide sellers occupy the single most-declined MCC in high-risk e-commerce. Every mainstream aggregator refuses onboarding on principle, and the specialist offshore acquirers that will board you charge 6–10% blended cost with 18–24 month rolling reserves. Stablecoin settlement bypasses the classification system entirely.
Stripe, PayPal, Square, Adyen, and Braintree list peptides and research chemicals in their prohibited-goods policies. Even domestic high-risk specialists frequently reject peptides after underwriting review.
The processors who will board a peptide MID typically hold 18–25% of gross volume for 12–24 months. For a $100k/month seller that's $216k–$600k of locked capital sitting with a counterparty with documented exit-scam history.
Peptide MIDs are among the shortest-lived in high-risk processing. Acquirer-side de-risking waves in 2024 and 2025 wiped out entire portfolios of peptide sellers with 30 days notice — and 90–180 day post-termination fund holds.
- Stablecoin rails have no MCC. No mainstream aggregator can 'reject peptides' — the classification doesn't exist on the rail.
- No rolling reserve. Funds are spendable at on-chain finality (~3 seconds on TRC20).
- No underwriting file, no 12 months of processing statements, no personal guarantee.
- Weekly agent settlement supported for domestic USD needs, structured through the same channel.
Questions operators in this vertical ask.
The cashier supports Cash App, Zelle, Apple Pay, Venmo, and PayPal as customer-facing rails. Payment proofs are verified automatically via screenshot detection and cross-rail confirmation. Customers pay in the rail they know; the operator settles in stablecoin.
Payment rail choice does not change the underlying regulatory status of the product. The cashier is a payment infrastructure — operators are responsible for their own compliance with FDA, DEA, and state-level rules. What the cashier does provide is a legally-recognized settlement rail (GENIUS Act, July 2025) that mainstream card networks refuse to route.
Disputes on the customer-side rail (Cash App, Zelle, etc.) are handled by that rail — not by you. Once payment is verified and the operator settles in stablecoin, the on-chain transaction is final. You are not exposed to CNP chargeback liability the way you would be on a card MID.
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