Solana mainnet launch · 2026-05-10

Mainnet is live.
The first 10 are already paying.

ZettaPay graduated from devnet today. A curated cohort of 10 beta merchants is settling real USDC on Solana mainnet at 0.30% fees and sub-2s finality. Each merchant is capped at $10k for the first 30 days — controlled blast radius, real signal.

Apply for cohort 2 vs Solana Pay Read the docs →
10
Beta merchants live
0.30%
Per-tx fee
<2s
Settlement
30d
Beta window
Beta cohort · 10/10 seats filled

The first ten merchants on mainnet

A curated mix of AI-agent commerce, Web3 SaaS, and crypto-native storefronts. Identifiers are anonymized while the cohort is active — the cap utilization is real and updates from /beta/status at runtime.

Per-merchant cap
$10,000 USDC
Window
30 days from launch
Allowlist enforcement
Server-side fail-closed

Cohort gates are documented in /docs · Beta launch protocol. Failed payments do not consume cap. Status endpoint returns 200 even when disabled so monitors detect misconfiguration.

Comparison

ZettaPay vs Solana Pay

Solana Pay is an open spec for QR-code USDC transfers — we love it and build on the same chain. ZettaPay is a full payment processor on top: APIs, webhooks, idempotency, agent protocols, fiat onramp. Different tools for different jobs.

Capability
ZettaPay
Solana Pay (spec)
Type
Hosted payment processor + SDK
Open spec for transfer / transaction requests
Fees
0.30% per transaction
Network gas only (you build the rest)
Settlement
<2s on-chain finality
<2s on-chain finality
AI agent payments (x402)
✓ Native — signed tx in HTTP header
✕ Not in scope
MCP tool integration
✓ First-class MCP server
✕ Not in scope
Webhooks (Stripe-grade)
✓ HMAC, 3x retry, idempotency keys
✕ Build it yourself
Idempotency keys
✓ Required on /pay and /merchants/register
✕ Not specified
Rate limiting
✓ Sliding window per API key
✕ Not specified
Fiat onramp
✓ MoonPay (card → USDC)
✕ External integration
Merchant dashboard
✓ Live analytics, agent attribution
✕ Build it yourself
SDK
@zettapay/sdk (TS) · widget · plugins
@solana/pay reference impl (QR)
Custody
✓ Non-custodial — direct payer→merchant
✓ Non-custodial
Best for
AI agents, SaaS, high-volume merchants
Storefronts that want a QR + DIY backend

Comparison reflects published Solana Pay spec capabilities at time of mainnet launch — docs.solanapay.com. ZettaPay does not replace Solana Pay; it sits one layer up, the way Stripe sits above ACH.

Audit
Pre-mainnet review complete

Off-chain checklist (auth, rate limits, secrets, headers) merged before cutover. Smart-contract audit (OtterSec / Halborn) pre-Z21.

Bounty
$50,000 public bug bounty

Open scope on protocol, API, SDK, and on-chain programs. Reachable via the security disclosure email in /docs.

Status
Public uptime + cohort utilization

/beta/status exposes config, days remaining, per-merchant cap. Always 200 so monitors detect misconfig.

Cohort 2 opens when the
30-day window closes.

We graduate cohorts to remove caps in stages. Apply now and get priority on the next 50 seats — or skip the line by integrating the SDK and signing up directly.

Apply for cohort 2 Read the docs