Rewards infrastructure.
On-chain. Invisible. Theirs.
StellarBack is a gateway API for issuing rewards your customers actually own. It mints a program's branded reward asset on Stellar only against a signed earn attestation, burns it on redemption, and holds the accounts custodially, so your users never see a key. It runs on Stellar testnet today.
No wallets to build · No seed phrases for users · Testnet only, access by request
Status: Testnet only, access by request. No self-serve sign-up, published pricing or SDK yet.
Loyalty that is not trapped.
Points expire and stay locked to one brand. StellarBack is built so rewards are real value on a public ledger: held in the customer's account, cheap enough to issue on every sale, and designed to interoperate across programs later.
Rewards they own and can move
Each program's branded asset sits in the member's account on the Stellar ledger, redeemable or movable between members through the same API. Moving across programs is designed for later; withdrawal to the member's own wallet is designed and waits on a custody legal opinion.
Crypto-invisible UX
The gateway creates and holds the Stellar accounts, and the calling platform never handles a Stellar secret key. No seed phrases, no gas, no wallet setup for your users.
Micro-rewards that pencil out
Pooled + muxed accounts are designed to remove per-user reserve costs, and Stellar's sub-cent network fees make rewarding small transactions economical.
Authorization you control
The issuer authorizes every member trustline (SEP-8), and mints, burns and reward-asset moves check that authorization before they submit. Assets carry no clawback, so an issued balance cannot be taken back.
One HTTP API, for apps and agents
One /v1 API behind an API key, callable from any app, checkout, or no-code platform, and designed to be the rewards provider behind Paygent's pluggable wallet interface. Pairing with Paydapter is on the roadmap.
Verifiable issuance
Nothing mints without an Ed25519-signed earn attestation that the gateway verifies itself. Forged and replayed earn requests are refused and mint nothing. Attestation covers the mint requests the gateway receives; attribution of sale credit is on the roadmap.
What the gateway does on testnet.
A pure wallet mover: accounts, assets, balances and transfers. Members, earning rules and program economics stay in the calling platform.
Accounts
POST /v1/self-custodial-accounts creates a member account. /v1/muxed-accounts derives a pooled M-address; /v1/external-accounts registers a payout destination.
Authorize
POST /v1/authorizations lets the issuer authorize or revoke a member's trustline to a program asset (SEP-8).
Earn
POST /v1/mints takes a signed earn attestation. An unverifiable one mints nothing. A retry for the same eventId, re-signed with a fresh nonce, returns the original transaction; the identical request again is refused as a replay.
Redeem
POST /v1/burns pays the asset back to its issuer, destroying supply. Idempotent on a required redemptionId: a retry returns the original hash, never a second burn.
Move
POST /v1/transfers settles XLM or USDC, or, with a programId, moves a program's asset between members.
Gated
There is no ungated path to a wallet operation: every route sits behind an API key or a bearer token.
From purchase to portable value.
Connect
Request access and receive an API key. The gateway provisions the on-chain accounts; you never touch keys.
Authorize
Authorize the member's trustline with /v1/authorizations. A mint to a member not yet authorized is refused with a 409.
Earn
Post a signed earn attestation to /v1/mints. The gateway verifies it and mints to the member's account.
Redeem
Post to /v1/burns with a redemption id. The points go back to the issuer and the supply is destroyed. Self-custody is designed and waits on a custody legal opinion.
Stellar network fee per reward
Stellar ledger close
earn-and-redeem checks, testnet run, 2026-09-30
no mainnet issuance yet
Fee and ledger-close figures are properties of the Stellar network. The 10/10 is one recorded run of the StellarBack gateway on testnet.
Give rewards a customer can keep.
API access is by request while StellarBack runs on Stellar testnet. Tell us what you are building and we will take you through the API and the testnet system.