Darrel Miller is a Partner API Architect at Microsoft, where he helps shape the future of Microsoft 365’s agentic platform. With deep roots in web standards, he specializes in HTTP, hypermedia, REST, and the OpenAPI Specification, and serves on the Linux Foundation’s A2A (Agent-to-Agent) Technical Steering Committee and the LF AI Catalog TSC. His work spans Microsoft Graph SDKs, API management, and the design of Work IQ APIs that support both A2A and MCP, along with governance models for enterprise agents. A frequent conference speaker, Darrel combines protocol-level rigor with a knack for turning complex API and agent-platform concepts into practical guidance.
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