TIER_B · version update

x402 seller docs distinguish test facilitator from CDP mainnet

Official seller documentation instructs developers not to reuse https://x402.org/facilitator on mainnet routes. Production examples include the CDP facilitator at api.cdp.coinbase.com/platform/v2/x402 and facilitator.payai.network. Supported networks listed include Base mainnet eip155:8453 and Solana.

Event 15 January 2026 · source 15 January 2026 · zFinia published 7 September 2026 · retrospective

Why it matters

Facilitator choice is part of the live commercial path. Foundry’s receive-only rail already requires authenticated CDP on Base mainnet.