Exact-scheme facilitator fees are often ~$0.001 per onchain settle. On ~$0.02–$0.03 calls that is a few percent of GMV — and it grows with volume. Batch-settlement verifies off-chain and settles in bulk.
x402 volume is real. On tickets around $0.02–$0.03, a $0.001 per-settle facilitator fee is a few percent of GMV — not a third — but it compounds across millions of calls. Batch-settlement exists; tooling and ops are why it is not the default.
Buyer deposits once into escrow, signs cumulative off-chain vouchers, seller claims in bulk. One onchain settle can cover many paid HTTP calls. Public demo is Base Sepolia only.
/supported, /verify, /settle — x402 v2 compatible. Live on Base Sepolia today.
Register routes once. Claim, settle, and refund loops with durable channel state.
Facilitator, resource server, and client in the public core repo — full local payment loop.
Point a resource server at the public test endpoint. No API key required for this demo.
Network: eip155:84532 (Base Sepolia). Schemes: batch-settlement, exact.
This host is the rail only — /health, /supported, /verify, /settle, /stats. There is no /weather here. The example seller is demo-resource … /weather (browser → 402).
Env for your server:
FACILITATOR_URL=https://facilitator.batchrail.io
Try a paid call (testnet): GET /weather on demo-resource returns 402 in a browser; an x402 client pays Base Sepolia test USDC then retries. seller /health
Early access for high-volume x402 merchants and agent builders.
Join WaitlistOpens a short form. No spam — launch and pilot updates only. *After typical facilitator free tiers; not a GMV guarantee.