ap2-iso20022 is an open-source Python package that bridges AP2 (Agent Payments Protocol) and x402 agent-payment mandates into ISO 20022 pain.001 and pacs.008 records. It provides spending-cap, expiry, and authorisation guardrails, and includes an MCP server for integration. Designed for fintech developers handling payment automation and compliance.
In the Frameworks & SDKs space, ap2-iso20022 takes a focused approach. It focuses on automating the conversion of agent-payment mandates into ISO 20022-compliant records for payment processing. ap2-iso20022 is an open-source project aimed at fintech developers. The project is open source (Apache-2.0). It runs on the web, the command line, and API, and it can be self-hosted.
Sébastien Rousseau builds and maintains ap2-iso20022, and the product first shipped in 2026. The project is developed in the open on GitHub with 1 commits in the last 90 days. Among its 8 catalogued features are ISO 20022 conversion, spending cap guardrails, and expiry management. It exposes integrations via an MCP server and a public API.
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