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Protocol design
Why subscription billing needs on-chain price immutability
Apr 10, 2026 · 4 min read
Non-custodial recurring payments on Solana
Recuro gives you a subscription stack built for on-chain billing.
Create recurring stablecoin subscriptions (like USDC) without touching subscriber funds. Keep price immutability, delegate safety, and keeper redundancy from day one.
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One protocol for the full lifecycle
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Subscriptions
A new subscription primitive
Launch subscription billing with Solana's on-chain price immutability and a user experience that rivals Web2 in minutes, not months.
- SaaS platforms with monthly or annual billing
- Membership programs with cancellation anytime
- Content platforms with subscription-gated access
- Service marketplaces with recurring billing
- Plan price locked forever in the on-chain Plan account
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Non-custodial
Funds never leave the subscriber's wallet
Subscribers approve a delegate scoped to exactly one plan amount per cycle. Cancel instantly by revoking approval in Phantom. Zero future exposure.
- Scoped approval — one amount, one merchant, one cycle
- Price locked forever in the on-chain Plan account
- Cancel anytime, no support ticket required
- Blast radius limited to one cycle if delegate is compromised
0%
custody risk
1 tx
to start billing
3
missed cycles to expire
0.25%
protocol fee cap
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Reliability
Reliable revenue with open keeper architecture
Any keeper can execute payments — no single point of failure. Run your own keeper, use a paid service, or run multiples in parallel.
- Multiple keepers ensure reliable payment execution
- Keepers rewarded from the protocol — no perverse incentives
- Graceful failure with auto-expiry after 3 missed cycles
- Rent returned to subscriber on expiry — no zombie accounts
Powered by Recuro
Subscription infrastructure that composes with your stack
$100M+
subscription volume modeled
24/7
keeper execution coverage
1
price source per plan
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Compare Recuro with legacy subscription rails
| Feature | Recuro | Competitors |
|---|---|---|
| Price locked | ✓ Immutable on-chain | ✗ Merchant can raise anytime |
| Custody | ✓ Non-custodial | ✗ Third-party holds funds |
| Delegate scope | ✓ One amount per cycle | ✗ Often unlimited SPL approval |
| Cancel protection | ✓ Instant SPL revoke in Phantom | ✗ Must contact support |
| Keeper model | ✓ Open & redundant | ✗ Single centralized service |
| Fee | ✓ 0.25% | ✗ 1-2% per transaction |
| Keeper rewards | ✓ Protocol-funded | ✗ Keeper absorbs gas cost |
Ecosystem
Read the latest thinking from the Recuro stack
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Security
Delegate approvals that stop at exactly one cycle
Apr 10, 2026 · 6 min read
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Operations
How open keepers make recurring payments resilient
Apr 10, 2026 · 5 min read
Install the SDK
$yarn add @recuro/sdk$npm i @recuro/sdk$pnpm add @recuro/sdkReady to ship
Launch recurring billing without giving up custody.
Build a clean subscription experience that feels familiar to users and still preserves the security guarantees that matter most.