By Chet Parker · Published 2026-06-25 · Last updated June 25, 2026 · 3 min read
Almost every machine-to-machine payment in the agentic economy today settles in US dollars, nearly always USDC. One of our providers has quietly built something different: an API that an AI agent pays for in Japanese yen, ¥1 for an anchoring call.
The provider is Anchor-x402, and the rail is JPYC, the first Japanese yen stablecoin licensed under Japan's Financial Services Agency. It runs on Polygon. The interesting part is not the technology on its own, it is the mental model it forces. When an agent pays in yen, the price is set in yen. An anchoring call costs ¥1, and ¥1 it stays. The dollar figure is whatever the yen happens to be worth that day, not the other way round. For anyone used to pricing in dollars first and converting after, that is a small but real inversion.
Someone built the missing piece
Most x402 services, including the USDC rails on Anchor-x402 itself and across our marketplace, settle through Coinbase's CDP facilitator. There was no hosted facilitator for JPYC. So rather than wait for one, the provider stood up his own. It runs in-process, wraps the x402 SDK's EVM facilitator with a relayer wallet on Polygon, verifies each payment and submits settlement itself.
That is the part worth pausing on. The rail exists because someone built the part of the stack that was not there yet, instead of waiting for the ecosystem to catch up.
Gasless for the agent
For the buying agent, the flow is gasless. The agent signs an EIP-3009 transfer authorisation off-chain and pays no network gas. The provider's relayer submits the transfer on-chain and covers the gas itself. The agent needs to hold JPYC, and nothing else. No swap, no conversion step, no separate token for gas.
A small signal worth surfacing
This is the first non-USDC settlement rail listed on PayAPI Market, and it is early. Most traffic still moves in USDC on Base, and that is not going to change overnight. The point is not volume. The point is that the mechanism is live and working on mainnet: a different currency, a different facilitator, the same per-request model.
If agentic payments are going to be genuinely global, they will not all be denominated in dollars. Yen-denominated settlement, ¥1 for an anchoring call, is an early, working example of what that actually looks like. Surfacing that kind of thing is the job a curated marketplace is supposed to do, which is why it is here.
Thanks to Christopher at Anchor-x402 for confirming the settlement details. You can find the full catalogue, including the Base and Solana USDC rails alongside the JPYC one, at anchor-x402.com.