Production & integrations
Who runs on Fermah in production, what the current docs list separately, and what has been announced but is not currently listed as production. Nothing is here without a link and a date.
EVERY ENTRY CARRIES A SOURCE AND CHECK DATE · PAY TESTNET SOURCES CHECKED 2026-10-26
Product update · October 26, 2026
Prepaid USDC accounts and seller billing, with sponsored transaction submission, replay protection, recurring mandates and an x402 facilitator interface. The October 26 announcement reports Tranche 1 on Stellar testnet; the public repository provides implementation and testnet evidence.
For the prepaid-ledger flow, the buyer signs a deposit authorization. USDC moves to a separate treasury and the contract credits the buyer’s ledger balance.
A charge moves credit from the buyer’s balance to seller revenue in the contract’s accounting. It does not transfer USDC between wallets on each charge.
A submitter signs the transaction and a separate fee account pays through Stellar fee bumps. Zero buyer fees means the buyer pays no network fee; the transaction still has a fee.
The published testnet record replays a previously settled batch of 98 charge IDs. All 98 return Duplicate and nothing is debited again. This is a recorded test case, not a guarantee against every failure mode.
September 29 testnet record ↗An API retry returns the original charge with created: false. The separate single-charge replay case is refused during pre-submission simulation as DuplicateCharge (error 110). The 98-entry batch replay is a distinct case that was included onchain.
Replay and API evidence ↗The buyer authorizes a mandate once; billing follows its periods and limits. The recorded two-minute-period test checks an early second charge (not_due), a later valid charge, an expired mandate (mandate_expired), and revocation with allowance zero. The testnet CI workflow also exercises recurring billing.
Recurring testnet record ↗The gateway documents /supported, /verify and /settle for x402 v2 batch-settlement on Stellar. Authenticated verification and settlement use buyer-signed commitments against prepaid funds. Admission and later onchain batch inclusion are separate steps.
x402 facilitator reference ↗This record concerns Stellar testnet. It does not establish a production Mainnet release, an independent security audit or universal fee-free operation. The prepaid-ledger flow uses treasury custody and treasury-authorized withdrawals; the repository also describes a distinct vault flow, which should not be conflated with it.
The October 26 thread names onchain risk monitoring/alerts and an ecosystem-partner testnet integration as work being closed out. That announcement does not establish completion of either item or identify the partner.
October 26 thread ↗Sources checked 2026-10-26. Testnet evidence records retain their own dates; the September 29 replay record was discussed in the October 26 announcement.
Ecosystem graph
Solid lines show live relationships and docs-listed products. Dashed lines show testnet, announced, historical or open entries.