API Evangelist
Studying the technology, business, and politics of APIs since 2010.
About API Evangelist
API Evangelist has worked for the last 15 years to make sense of the technology, business, and politics of APIs, profiling public and private APIs and distilling down knowledge into a regular cadence of API storytelling, and weekly knowledge building sessions focused on schema, APIs, governance, operations, change, and evangelism.
Latest Stories
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Where The Market Layer Of The Kin Score Stands
Nine days ago I wrote that the Kin Score was getting a third dimension, the market. I want to show where that work stands, warts and all. We are building this in the open, and I...
What A Program Needs In Order To Decide
Mike Amundsen published a short one yesterday, Designing for Autonomy, while he finishes his new book, AI-Driven API Design. It’s two axioms he settled on while building GRAIL, ...
Three Hundred Eighty Companies Say Claude And One Hundred Forty-Two Say Anthropic
Job postings do not name AI companies. They name AI products. That is the clearest thing in the Q3 2026 Insights pull when you line up the vendors against what they sell. The p...
Healthcare: The Shape Of The Answer
Yesterday I wrote about DeepInfer and the shape of the answer, and how batch-invariant inference, deterministic sampling and schema-constrained output together make valid JSON t...
Four Companies Serve Skills Over MCP The Way The Spec Says
On September 13 the Model Context Protocol made skills official. SEP-2640, the Skills Extension, went Final, and the working group behind it published a docs site with the stabl...
Understanding Our Relationship With Technology
API Evangelist has been working to understand our relationship with Internet technology for the last fifteen years, but it has primarily been focused on understanding the producers of the technology, where moving forward I am more interested in understanding the consumers of not just APIs, but the applications they build on top of APIs.
Guidance
Browse AllAbout the API Evangelist Site
This site is the active daily working toolbox for Kin Lane. Feel free to explore the toolbox, you won't break anything. API Evangelist works out in the open to encourage the reuse of our work, while also demonstrating the potential of evangelizing your API work as it occurs.
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API Evangelist
Highlights of the stories, conversations, and API knowledge published across the industry each week.
The Specification Layer
What actually merged into the thirty specifications the Linux Foundation stewards — OpenAPI, AsyncAPI, JSON Schema, and the rest.
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