Rain has launched the Agentic Payments Alliance, a coalition focused on defining how AI agents can make payments on behalf of users. The new announcement identifies Visa, Mastercard, Circle, Solana and Remitly as founding members, with Avalanche, Chainalysis, Fiserv, Fireblocks, Uniswap Labs and Turnkey also participating. An earlier account listed more than 25 organizations, including several additional companies, so the membership description has since been presented differently. The alliance will conduct research, develop frameworks, test standards for agent identity and authorization, and discuss regulatory issues. Rain said its Agent Control Layer and Scoped Cards give agents payment credentials with restricted access, while alliance members will receive early access to Rain's Agentic Startup Program.