We built Turnstile on Solana because pay-per-call micropayments only work if settlements are instant and cheap. Solana’s 400 ms finality and $0.00025 fees make x402 economically viable—AI agents can make thousands of API calls without bleeding gas. Ethereum L1s are too slow for this model. We’re building the infrastructure that makes programmable payments native to the fastest-growing blockchain ecosystem.

List a Service Providers register their API endpoints on Turnstile. Set per-call pricing in USDC or $TSTL. Enable x402 payment headers. Define rate limits and SLAs. Receive instant settlements to your Solana wallet.

Builders integrate services into AI agents. Browse the marketplace by category (AI/ML, Data, Tools). Select services and set budgets. The SDK automatically handles x402 negotiation. Monitor real-time usage and spending.

Every request triggers an instant micropayment. Agent → Service → Payment → Data → Done. No subscriptions. No billing stack. No delays. Just Solana-level finality.

Solana handles settlement. Turnstile handles transparency. 400 ms finality. Sub-cent fees. Full transaction history. Revenue analytics for providers. Spending analytics for builders. Turnstile is the access layer for the new API economy.