Four chains behind one voucher, paid in-band over x402 with the wallet your agent already holds. No account, no API key.
OR BUY IN THE TERMINALFlat price, shared balance, standard node methods.
$1 = 10,000 calls
Flat. One bearer voucher, one shared balance, all four chains: Arc, BSC, Robinhood, Solana.
No signup
No account, no API key, no card. The wallet is the account; the 402 is the offer sheet.
Standard JSON-RPC
Byte-faithful upstream responses, batches up to 50 entries, X-RPC-Credits-Left on every reply.
Settled before delivered
The voucher is issued only after on-chain settlement — payment.status "settled" with a transaction hash.
One challenge, one signed retry, one voucher. Never re-sign after an uncertain outcome — reconcile first.
The client (x402-pay.mjs ↗) pins seller, amount, network and asset before signing and never adopts the advertised price. Prices are pinned in x402-prices.json ↗.
What this tier does not promise.
The server stores only the SHA-256 of your voucher. Lose the plaintext and the credits are unrecoverable — persist it from the response.
Once a call is forwarded upstream it is charged, even if the provider errors. Failover across providers does not charge twice. No automatic refunds.
Rate bucket: 20 requests/second burst per voucher. Rejections before forwarding are never charged.
No websockets, no archive-depth guarantee, no SLA. Sustained heavy load should buy a provider plan directly.
Everything on this page, in formats an agent parses without a human.
The primary interface needs none of these: call the endpoint unpaid, and the 402 response itself carries the full machine-readable offer.