Circle launches Arc mainnet with BlackRock, Visa and DTCC among founding validators; Circle's x402 Facilitator Service goes live on Arc

Circle's Arc mainnet went live on September 16, 2026, settling in USDC, with BlackRock, Visa, Mastercard and DTCC among founding validators. CEO Jeremy Allaire said Circle's x402 Facilitator Service is now live on Arc, also processing for Base and Polygon PoS. 10B ARC tokens were minted.

Detected & updated continuously · Source: Nebula