What is OpenFacilitator (OPEN)?
OpenFacilitator is a hosted x402 payment facilitator service that enables developers to accept x402 payments without running their own infrastructure. The x402 protocol allows AI agents and applications to make autonomous micropayments for APIs and web resources. OpenFacilitator offers a free public endpoint at pay.openfacilitator.io, or users can create their own white-labeled facilitator for $5/month with custom domain support. The service is non-custodial, supports EVM chains and Solana, and is fully open source under Apache 2.0.
Where can you buy OpenFacilitator?
OpenFacilitator (OPEN) is traded on a wide range of centralized and decentralized exchanges. The most liquid markets for OPEN sit on tier-1 venues - the sort of exchanges where institutional desks and professional market makers rebalance continuously - which is what keeps the spread tight and the last price tied closely to fair value.
The price and 24-hour volume on this page combine the exchanges ReadPrices tracks for OPEN. Before you trade, compare the fee schedule and the order-book depth on the venue you plan to use: the same coin can cost noticeably more to buy on a thin market.
