- What it is
- Let a machine pay for an HTTP resource without a human checkout page.
- Who maintains it
- x402 Foundation, Coinbase (original public launch)
- Payment / transport model
- A server that wants to charge responds with HTTP 402 and machine-readable payment requirements. A client that can pay attaches proof and repeats the request. Settlement is typically verified through a facilitator.
- Networks
- Base; Solana; other networks listed in seller documentation
- Evidence
- Public launch by Coinbase on 6 May 2025. Linux Foundation announced operational launch of the x402 Foundation on 14 July 2026. Seller documentation lists multiple networks and facilitators.
- Last verified
- 7 September 2026
Membership, listings and facilitator count are not settlement volume. zFinia does not currently publish a verified x402 payment-volume statistic.
Official documentation · Primary source · Explainer
Known ecosystem relationships
- agent402INDEXESx402
- agentkitCAN PAYx402
- agentpayCAN PAYx402
- baseSUPPORTSx402
- bazaarINDEXESx402
- cdpFACILITATESx402
- cloudflareINTEGRATEDx402
- coinbaseBUILDSx402
- evt-base-l2-fees-enable-micropaymentsDISCUSSESx402
- evt-cdp-x402-discovery-resourcesDISCUSSESx402
- evt-cloudflare-monetization-gateway-x402DISCUSSESx402
- evt-coinbase-x402-2025-05-06DISCUSSESx402
- evt-foundry-csv-profile-liveDISCUSSESx402
- evt-hn-pay-per-crawl-discussionDISCUSSESx402
- evt-linux-foundation-x402-intent-2026-04-02DISCUSSESx402
- evt-linux-foundation-x402-operational-2026-07-14DISCUSSESx402
Machine: https://api.zfinia.com/v1/graph/entities/x402