Nomotic, Inc. The Legal Entity Identifier (LEI), defined by ISO 17442 and operated under the global governance of the Global Legal Entity Identifier Foundation (GLEIF), is the internationally recognized identifier for legal entities in financial transactions and regulatory reporting. The verifiable LEI (vLEI), built on Key Event Receipt Infrastructure (KERI) and Authentic Chained Data Containers (ACDC), extends the LEI into the digital trust ecosystem with cryptographically verifiable credentials issued through Qualified vLEI Issuers (QVIs). This document specifies how the Agent Transfer Protocol (AGTP) binds to the LEI and vLEI infrastructure. It defines how an LEI is carried in an AGTP Owner-ID, how a vLEI Legal Entity credential composes with AGTP-CERT to establish institutional identity at the wire, how a new verification path (vlei-anchored) is added to AGTP-TRUST for KERI- based verification, and how vLEI Role Credentials (OOR, ECR, AUTH) express the human authorization chain that produced an agent. The result is a clean composition: AGTP provides the agent identity substrate, the LEI provides the institutional identity, the vLEI provides cryptographic verification of that institutional identity, and the vLEI Role Credentials provide the authorization chain from the legal entity through human officers to the agent. This document positions financial institutions, regulated entities, and other LEI holders to deploy agents with structurally verifiable institutional identity from day one.