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Introduction

Welcome to the MidLyr developer documentation. MidLyr is the most comprehensive compliance layer for US regulated financial institutions — built on verified public information, trained by human experts, and designed to embed real-time regulatory checks into AI agents and custom applications.

The MidLyr platform exposes its compliance engine through a set of APIs and an MCP server so you can:

  • Search a continuously updated regulatory library covering federal regulations, state codes, exam manuals, and agency guidance.
  • Pull regulatory source text by byte range with stable document IDs for precise citation.
  • Run real-time compliance screening against an institution profile (products, assets, operating states) without uploading documents.
  • Capture every check as a traceable, auditable interaction so compliance teams can produce exam-ready packages.
  • Developers embedding compliance checks into custom apps, AI agents, and internal tooling.
  • Product teams building consumer- or business-facing fintech features that need to stay inside regulatory bounds.
  • Compliance teams instrumenting and auditing AI usage across their organization.