Name: Tributary
Author: Tributary

Question 1

What is Tributary?

Accepted Answer

Tributary is a Solana-native payment protocol enabling automated, non-custodial recurring payments through token delegation. It supports four payment models: Subscriptions, Milestones, Pay-as-you-go, and One-time. Live on Solana mainnet with 400ms finality and sub-cent fees.

Question 2

How does token delegation work?

Accepted Answer

Users sign a single transaction to delegate tokens to Tributary's on-chain program. The protocol executes payments automatically on schedule without locking funds in escrow. Users retain full custody — funds stay in their wallet until a payment is due. Delegation can be revoked anytime.

Question 3

How do I accept USDC without Solana code?

Accepted Answer

Use Tributary's hosted checkout page at checkout.tributary.so. Your user signs once through the checkout, then lands back on your site with a JWT. You verify the JWT with any standard library — no Solana SDK, no RPC provider, no keypairs needed. One React hook is all it takes.

Question 4

Is Tributary secure?

Accepted Answer

Yes. Tributary is fully non-custodial — $0 TVL risk. Funds remain in user wallets. The protocol only holds delegated authority for specific amounts and schedules. Open-source, verifiable on-chain, and revocable anytime. Full CI/CD pipeline with comprehensive testing.

Question 5

Can users cancel subscriptions?

Accepted Answer

Absolutely. Users have full control and can pause, resume, or cancel any payment policy anytime through their wallet or dApp. No lock-in, no penalty.

Question 6

What is x402 integration?

Accepted Answer

Tributary powers x402 (HTTP 402 Payment Required) for web micropayments. This enables seamless payment flows over HTTP without breaking the request-response cycle — ideal for API monetization, AI agent billing, and pay-per-use services.