API Evangelist
@apievangelist
I am the API Evangelist, making sense of the technology, business, policies, and the people of APIs since 2010 by surveying and assessing the public and private API landscape.
Twenty-five of the most important venture funds, ranked on one axis: whether their portfolios are ready for agents that act. https://papers.apievangelist.com/papers/agentic-readiness-of-venture/
The broadest contracts in venture, and the thinnest agent-execution layer. Every Accel company that ships an API, scored. https://papers.apievangelist.com/papers/accel-api-portfolio/
Every Andreessen Horowitz company that ships an API, scored the way a machine reads it. A thesis is a claim. The APIs are the evidence. https://papers.apievangelist.com/papers/a16z-api-portfolio/
Every 500 Global company that ships an API, scored the way a machine reads it. A global seed book that is agent-native at the edges and governance-empty at the core. https://papers.apievangelist.com/papers/500-global-api-portfolio/
1,369 participants. 487 organizations. 93 repositories. Nothing graduated, and exactly one operator on earth publishing a contract you can call. Telecom standardised itself without being told to — then stopped one step short of shipping. https://papers.apievangelist.com/papers/the-camara-standard/
Medplum has the highest rated composite + agent-readiness Kin Score of all the healthcare providers we've profiled so far. providers.apievangelist.com/us-healthcare/
The latest build pushed the index of APIs on APIs.io forward significantly. I profiled the portfolios of the top 100 VC Firms. apis.io
Who in the market data API sector are agent ready, and who is not? providers.apievangelist.com/market-data/
I needed a way to document and visualize the experience across APIs.io API path & operations, it's MCP tools, prompts, & resources, as well as Agent Skills to understand the experience coverage, but also what I was giving away & what I was going to use to generate revenue. experience.apicommons.org
I added a color picker to the API Commons MCP Installer button builder - install.apicommons.org
Your portal is a mirror of your organization. A stranger can evaluate your API operation in ninety seconds without ever talking to you. My new paper: the three portal archetypes, the anatomy of the front door, and the agentic turn. https://papers.apievangelist.com/papers/publishing-an-api-portal/
I have the apis.io search engine populated to levels I think represents the API economy. I will keep adding ones here & there & of course others can add their own, but now I intend on spending the summer making sense of what is there & the approach providers are taking when it comes to integration.
The APIs.io network added a new layer this week — arazzo.apis.io. It joins the catalog as its own Workflows section in the More dropdown across every site in the network, sitting alongside the OpenAPI, AsyncAPI, and JSON-LD specification layers. apis.io/2026/06/04/a...
Search across 6445 providers, 22615 APIs, and 98952 schemas, and more. - apis.io
Supreet Nagi, Senior Director at Northwestern Mutual and Budhaditya Bhattacharya, Director of Product Ecosystem at Tyk will be coming by tomorrow for my recurring Tuesday 10:00 AM conversation to talk about "a practitioner's point of view for zero-touch governance" ⚠️ Registration - bit.ly/4qK9gZj
Clemens Vasters is coming by tomorrow for my Thursdays webinar conversation @ 10:00 AM EST to talk about JSON Structure, a data structure definition language that enforces strict typing, modularity & determinism. Register - bit.ly/3O0gOsl & JSON Structure - json-structure.github.io/core/draft-v...
Patrick Kelly, co-founder and CEO of Sideko, and creator of open-source execution layer for agentic tool calls Port of Context is coming by tomorrow to talk context engineering with me during my Tuesday live webinar conversation. ⚠️ Registration - bit.ly/4qK9gZj
I want to elevate & shine a light on the API governance rules schema Spectral, but also it's rebirth as Vacuum Rules, while acknowledging that it began back in 2016 as Speccy. I want to incite ongoing contributions to the schema, but also adoption of the variety of tooling. spotlight-rules.com
I want to shine a spotlight on how far Spectral rules have come from their early days. These API governance linting rules have taken on a life of their own, and they deserve having more of the spotlight shown on why they matter, and how they are being used. spotlight-rules.com
The city business and politics of rate limits impact on your subscription -- your Citibike costs more because the city just limited your speed to 15 MPH. ;-)
Croissant Format Specification - Croissant enables the interchange of datasets between ML frameworks and beyond, tackling a variety of discoverability, portability, reproducibility, and responsible AI (RAI) challenges. - docs.mlcommons.org/croissant/do...