Show HN: ISO 20022 Payments MCP – First standards-typed financial MCP server

I built this because no MCP server speaks pacs.008 natively. It's backed by AWS CardDemo (COBOL credit card system) modernized to ISO 20022. Four tools: validate_message, get_statement, payment_status, initiate_payment — all with FINOS AIGF governance middleware. Part of a larger legacy modernization framework (EvolutionAI). Blog writeup with the full architecture: [Medium link]