According to @jessepollak, developers can accept x402 payments for their agent on Base with just three lines of code, as stated in an X post on Sep 12, 2025 (source: @jessepollak on X). The post links to a Vercel update on x402, providing a reference point for following tooling and integration announcements that traders can track for ecosystem activity signals (source: Vercel X post linked by @jessepollak).