API Evangelist Conversations

Kin Lane

Mapping the technical details of API operations to the human conversation.

  1. 8시간 전

    API Evangelist Conversation with David Biesack on JSON Schema, OpenAPI Extensions, and Building Banking APIs from Source

    David Biesack is the Chief API Officer at Apiture, where he designs the API-driven digital banking platform that hundreds of community banks and credit unions run on. In this conversation we go deep into the craft of API design with one of the few people who not only talks about this work at the conferences but goes home and actually builds it. We trace how OpenAPI 3.1 adopting JSON Schema 2020-12 unlocked a data-driven pipeline at Apiture — schema bundling, reference resolution, per-schema versioning, generated release logs, and home-built specification extensions that all validate themselves with JSON Schema. David makes the case for treating your API definition as structured data you can process rather than prose, for keeping the average developer away from reference mayhem, and for staying plugged into the open, generous JSON Schema community. We close on his worry that vibe coding will produce schemas that work for the first twenty percent of cases and break on the rest, and his conviction that the discipline is learnable if practitioners keep sharing.

    27분

  2. 5일 전

    API Evangelist Conversation with Daniel Kovac on OpenAPI, SDKs, Context Engineering, and the Rise of Agent Skills

    Daniel Kovac is a product engineer at Speakeasy, where the team turns OpenAPI into deterministic, production-grade SDKs and is now leaning hard into agent skills as the way developers interface with their CLI. In this conversation we start with where SDK developer experience is headed as coding agents like Claude and Codex become the execution layer, and why deterministic generation still matters when an LLM can quietly break a client-to-contract match. From there we get into the relationship between OpenAPI and skills, the role of overlays as a first-class, deterministic enhancement layer, and how Speakeasy formed the structure of its skills — sourcing them from real customer issues, flattening tree-shaped docs, and treating a skill's description as a problem statement rather than a solution. Daniel walks through their eval framework, an agent-feedback loop where agents file complaints about other agents' skills, and the move toward speakeasy agent context as the next abstraction beyond flat skills. We close on design-first development, dogfooding, public versus private skills, and what skills mean for discovery.

    57분

  3. 6월 30일

    API Evangelist Conversation with Clemens Vasters on JSON Structure and Bringing Sanity to Schema, Metadata, and AI

    Clemens Vasters is a Principal Architect at Microsoft who has spent twenty years building the industrial-grade messaging and eventing backbone of Azure — Service Bus, Event Hubs, Event Grid, Stream Analytics, the relay, and now Microsoft Fabric Eventstreams — while representing Microsoft across messaging standards like AMQP, MQTT, CloudEvents, and xRegistry. In this conversation we dig into JSON Structure, the strictly typed data definition language he created and took to the IETF as an answer to the long, problematic history of JSON Schema. Clemens explains why JSON Schema is a fine validation language but a lousy data definition language, how he cut the dangerous parts — unconstrained any-of/all-of composition and scatter-shot dollar-ref — to leave a clean core with a real type system. We get into metadata as the missing ingredient for better LLMs, the SDK and Avrotize tooling ecosystem, how he tamed reference complexity with a two-step import-then-ref model, extension mechanisms for governance and policy, and why he believes a good spec eventually earns its adoption.

    58분

  4. 6월 25일

    API Evangelist Conversation with Anna Daugherty on Application Security, Developer Workflows, and Governing AI-Generated Code with Rules

    Anna Daugherty leads product marketing at Arnica, where she has carried a career-long focus on developer workflows from the documentation and spec experience at Stoplight, through commercializing Spinnaker at Armory, into application security. In this conversation we trace how AppSec stays a developer-tooling problem at heart, why governance is the question that never goes away no matter the tool, and where in the lifecycle a developer is actually most likely to fix a vulnerability — not the IDE, not the pipeline gate, but the pull request. We get into Arnica's pipelineless, developer-native ethos, the move to inject security rules into rules.md files so the LLM itself follows them at the point of AI code creation, and why the source code layer offers the widest coverage. We close on staying grounded amid the AI hype, real customer validation, and a shared love of preserving the physical and the human.

    36분

  5. 6월 23일

    API Evangelist Conversation with Anil Dash on Markdown as the Control Plane for AI, and the Enduring Power of the Open Web

    Anil Dash is a technologist and writer who has spent more than two decades building internet technologies and chronicling what they do to the people who use them. In this conversation we start with markdown — the plain-text format he helped shepherd into the world as the product manager for Movable Type — and trace how a deliberately loose, "good enough" convention became the control plane for AI. Anil makes the counterintuitive case that markdown succeeded precisely because it was never tightly specified, and that technical correctness and standardization too often hand the keys to the biggest companies in the room. From there we go wider: how he reconciles the hopeful early web with today's enshittified platforms, why he writes for the people at and below the API line, and where the next wave of opportunity hides in the AI noise. We close on history, cycles, and his enduring belief that the antidote is for everyone to keep blogging and narrating their own stories.

    36분

  6. 6월 19일

    API Evangelist Conversation with Sam Newman on Microservices, Organizational Design, and Keeping a Calm Head in the Age of AI

    Sam Newman is an independent consultant and author whose books on microservices and distributed systems have shaped how a generation of teams think about architecture. In this conversation we go back to the fundamentals — what a microservice actually is, why the connections between services so often mirror the connections between teams, and why most enterprises adopt this architecture for organizational reasons rather than technical ones. Sam makes the case for microservices as an "architecture of last resort," walks through how he reads whether an organization is truly ready, and offers a refreshingly grounded take on AI: it has taken the oxygen out of the room, the economics do not yet add up, and the smartest teams are the ones keeping a calm head and doubling down on what makes their people more human. We close on small, incremental change as the antidote to complexity traps — and his advice for anyone just starting out.

    38분

  7. 6월 19일

    API Evangelist Conversation with Simon Wardley on Wardley Mapping, the Economics of AI, and Who Controls How We Reason

    Simon Wardley is the creator of Wardley Mapping, the situational-awareness technique now used by organizations around the world to understand the landscapes they compete in. In this conversation we start with the fundamentals — what a Wardley map actually is, why most "maps" in business are really graphs, and how giving space meaning lets you challenge the map instead of the person. From there we get into the politics that runs through every technology decision, and Simon takes apart the recurring myths about efficiency through the lens of Jevons paradox: cloud did not shrink IT budgets, AI will not reduce headcount, and the same Red Queen dynamics are playing out again. We dig into the ILC model and APIs as future-sensing engines, why large language models are coherence engines rather than truth engines, and the geopolitical stakes of letting someone else control the tools, language, and medium you reason with. We close on critical thinking, how Simon uses LinkedIn to think out loud, and what gives him hope.

    53분

  8. 6월 5일

    API Evangelist Conversation with Christian Posta on AI Capabilities, Agent Security, and Building a Purpose-Built Gateway for the MCP Era

    Christian Posta is Global Field CTO at Solo.io, where he has spent seven years at the intersection of cloud networking and artificial intelligence. In this conversation we work through what capabilities actually mean in the age of AI agents — specifically how you convey to a model what a function or API can do, when to call it, and why that natural language description is the foundation everything else depends on. We explore why identity and access management has shifted from nice-to-have to mandatory in agentic systems, what a stateful MCP world demands from gateways built for stateless REST, and why Solo built Agent Gateway from scratch in Rust rather than extending Envoy. We close on the commercial and open source strategy behind Agent Gateway — now a Linux Foundation project — and what Christian needs most from the practitioner community right now.

    22분
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Mapping the technical details of API operations to the human conversation.

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