Three things shipped in April 2026 that the agent-trust conversation has mostly missed. April 13: OpenAI joined the FIDO Alliance Board of Directors. The company stated it joined "to participate in emerging work to evolve authentication for agentic intelligence." OpenAI now also co-chairs FIDO's new Agentic Authentication Technical Working Group, alongside CVS Health and Google . April 28: Google donated its Agent Payments Protocol (AP2) to the FIDO Alliance, with sixty organisations backing the move (Mastercard, PayPal, American Express, Adyen, Coinbase, Salesforce, others). Mastercard contributed Verifiable Intent, co-developed with Google. The FIDO Alliance announcement calls these "interoperable standards for agentic interactions and commerce." April 28 again: a paper called AgentDID went up on arxiv (2604.25189). The authors propose a W3C-compliant DID + Verifiable Credential framework for agents that lack persistent identifiers and stable execution contexts. They benchmark it.…