Mastercard

Announced · Payments · also Validators · Last reviewed 2026-10-20

Card payments network. Circle's 2026-08-05 announcement lists Mastercard among Arc's founding validator cohort; the 2025-10-28 testnet announcement quotes it as an early design partner exploring Arc.

Website

Status

• First announced 2025-10-28

Evidence: Circle: founding validator cohort announcement

Sources

1. Circle: Arc public testnet announcement (2026-10-20)
2. Circle: founding validator cohort announcement (2026-10-20)
3. Circle: Arc mainnet launch announcement (2026-10-20)

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