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API Evangelist

@apievangelist.com
1K followers 3.1K following 1.1K posts

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 API landscape.

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API Evangelist @apievangelist.com · 08/10/2026
The most important context you can have when using AI should be derived from the APIs you already depend on to run your business. It already exists. You just are not… apievangelist.com/2026/10/08/busine…
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API Evangelist @apievangelist.com · 08/10/2026
We used to ask the clients what they thought of a spec change. Now we release it, point a model at it, and watch what survives. A primitive no client treats as first class is not rejected… apievangelist.com/2026/10/08/we-use…
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API Evangelist @apievangelist.com · 07/10/2026
Who took the APIs.io catalog last week, and how much of it. 9.97M requests, 29,170 providers. Meta left with 90.5%, Anthropic 83.6%, OpenAI 58.3%. The citation is a courtesy. The copy is… apievangelist.com/2026/10/07/who-to…
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API Evangelist @apievangelist.com · 07/10/2026
Can an agent drive your API? - apis.io
apis.io promo card: Can an agent drive your API? Nineteen dimensions, from a contract to an idempotent write. Only 3.6% of scored providers say what a retry does.
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API Evangelist @apievangelist.com · 06/10/2026
What adopting ReadMe actually moves on the Kin Score: 17 features, what earns nothing, and 122 customers who lead on llms.txt and webhooks but trail by a third on documentation credit. apievangelist.com/2026/10/06/what-a…
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API Evangelist @apievangelist.com · 06/10/2026
APIMatic has been generating SDKs from OpenAPI for eleven years. Last month they put up a public marketplace of agent context bundles at context.apimatic.io — twenty-four APIs, MIT licensed… apievangelist.com/2026/10/06/twenty…
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API Evangelist @apievangelist.com · 06/10/2026
Overlay 1.2 is out (reusable actions, $self), released by @lornajane.net and the OpenAPI editors. Here is what changed, and the fourteen jobs we already use Overlays for. apievangelist.com/2026/10/06/overla…
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API Evangelist @apievangelist.com · 06/10/2026
Commune shipped an API, an MCP server and a developer portal today, and our newsletters are moving onto it. Built by @fmvilas.me, who created AsyncAPI. apievangelist.com/2026/10/06/commun…
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API Evangelist @apievangelist.com · 06/10/2026
Yesterday I walked through everything you can do with the APIs.io API. Today is the other door into the same catalog: the APIs.io MCP server. I asked the live server what it offers… apievangelist.com/2026/10/06/one-hu…
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API Evangelist @apievangelist.com · 05/10/2026
Kin Score facet five: Access Clarity. What does it cost, what can I do, how do I get in, without a sales call? 30.5% of providers score zero. 126 score 100. apievangelist.com/2026/10/05/the-ki…
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API Evangelist @apievangelist.com · 05/10/2026
Nylas is now first of 29,074 API providers on APIs.io at 93.2, up 16.5 points. They did it themselves, in public, through pull requests. apievangelist.com/2026/10/05/nylas-…
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API Evangelist @apievangelist.com · 05/10/2026
An AI agent cannot fill in a signup form. I have been saying this for a while now, and the longer I sit with it the more I think the form was never really about authentication.… apievangelist.com/2026/10/05/an-age…
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API Evangelist @apievangelist.com · 05/10/2026
Someone asked me a simple question last week. Of the providers who publish an API definition, how many are publishing Swagger and how many are publishing OpenAPI, and which versions? 8,324 of… apievangelist.com/2026/10/05/one-in…
API Evangelist header image: a neon Tron-like codex scene framed with the K'in sun, glyph coins and butterfly.
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API Evangelist @apievangelist.com · 05/10/2026
After APIDays in London, I can now usually tell within the first five minutes when an MCP talk at a conference is going to go nowhere, and was likely just AI-generated. There are clichés to look for… apievangelist.com/2026/10/05/it-is-…
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API Evangelist @apievangelist.com · 03/10/2026
Ten percent of API providers ship an upsert. Under one percent tell you what it did. I measured 8,006 providers: 788 have create-or-update, 55 say which branch it took. apievangelist.com/2026/10/02/ten-pe…
Header illustration for the API Evangelist post "Ten Percent Have Upsert. One Percent Tell You What It Did."
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API Evangelist @apievangelist.com · 02/10/2026
Compare vendors on what they ship. apis.io
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API Evangelist @apievangelist.com · 01/10/2026
Phil Sturgeon on OpenLint, picking up where Spectral left off: As always happens in these situations, a group of motivated individuals are forking the project to get things moving again. This is not just a ragtag crew… apisyouwonthate.com/blog/openlint-p…
APIs You Won't Hate card: OpenLint: picking up where Spectral left off, with a terminal showing openlint --version.
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API Evangelist @apievangelist.com · 01/10/2026
Part three of nine in The Kin Score, Facet By Facet: Contract Governance asks whether you have written down what "good" means for your API contract, and whether anything holds it there. 64.5%… apievangelist.com/2026/10/01/the-ki…
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API Evangelist @apievangelist.com · 01/10/2026
A single Eon OpenAPI operation can carry vocabulary from a documentation platform, an SDK generator, and two of Eon's own inventions, and none of those four has an entry in the OpenAPI… apievangelist.com/2026/09/30/eon-ha…
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API Evangelist @apievangelist.com · 30/09/2026
Part two of nine in The Kin Score, Facet By Facet: Contract Quality asks the question everything else rests on. Is there a machine-readable contract for this API, and is it any good? Across the… apievangelist.com/2026/09/30/the-ki…
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API Evangelist @apievangelist.com · 29/09/2026
Ever since we launched APIs.io in 2014, one request has come up more than any other: can I run this inside my company? People did not want a public search engine for other people's APIs as much… apievangelist.com/2026/09/29/apis-i…
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API Evangelist @apievangelist.com · 29/09/2026
The OpenAPI Initiative announced OpenAPI 3.2 on September 23rd, 2025. Almost exactly a year later, on September 22nd, the Fastify project shipped fastify-swagger v9.9.0, and its release notes are a single… apievangelist.com/2026/09/29/fastif…
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API Evangelist @apievangelist.com · 29/09/2026
Searching for an API? So is your agent. - apis.io
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API Evangelist @apievangelist.com · 29/09/2026
I have spent a lot of my career sitting with teams who are proud of their API, and who have no idea what it looks like from the outside. This is the single most consistent thing I have found… apievangelist.com/2026/09/29/you-ca…
API Evangelist header image: a neon Tron-like codex scene framed with the K'in sun, glyph coins and butterfly.
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API Evangelist @apievangelist.com · 29/09/2026
On a planning call a few weeks ago I said something out loud that I had been sorting in my head for months: there are four ways a company reacts when I publish a Kin Score about it. It ignores… apievangelist.com/2026/09/28/the-fo…
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API Evangelist @apievangelist.com · 28/09/2026
"Agent-ready" has become one of those phrases that means whatever the person saying it needs it to mean. So I want to be specific about what it means in the Kin Score, because there it is… apievangelist.com/2026/09/28/the-st…
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API Evangelist @apievangelist.com · 28/09/2026
APIDays London is this Wednesday and Thursday, 30 September and 1 October, at Convene Sancroft next to St. Paul's. Before I go, I did what I always do with an agenda: I read every… apievangelist.com/2026/09/28/every-…
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API Evangelist @apievangelist.com · 28/09/2026
Version 0.23.0 of the Kin Score is live. I had pinned it to API Days London on September 30th and froze the rubric on September 13th to hit that date. Then I shipped it five days early, on purpose, so that… apievangelist.com/2026/09/28/kin-sc…
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API Evangelist @apievangelist.com · 28/09/2026
Your weakest API is your brand too. apis.io/estates/
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API Evangelist @apievangelist.com · 28/09/2026
I've been adding business capabilities and conversational overlays to APIs.io provider profiles. apis.io/providers/hu...
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API Evangelist @apievangelist.com · 28/09/2026
Pipedrive has published a machine-readable cost for calling each thing, inside the contract, next to the description that tells an agent when to call it. x-token-cost: 371 occurrences across… apievangelist.com/2026/09/28/pipedr…
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API Evangelist @apievangelist.com · 28/09/2026
One of the blockers keeping me from getting to the next level with APIs.io and my API Evangelist profiling work was me being pedantic about the precision of every OpenAPI and supporting artifact I… apievangelist.com/2026/09/26/apis-i…
API Evangelist header image: a neon Tron-like codex scene framed with the K'in sun, glyph coins and butterfly.
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API Evangelist @apievangelist.com · 25/09/2026
Every leadership team I talk to is being sold an agent strategy right now. Most of those roadmaps are organized by model and by vendor: which LLM, which platform, which copilot. That is… apievangelist.com/2026/09/25/before…
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API Evangelist @apievangelist.com · 25/09/2026
One of the things Z and I talked about in our recent conversation (that is Zdenek Nemec, of Apiary and Superface) was his engagement with younger engineers and… apievangelist.com/2026/09/25/the-ki…
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API Evangelist @apievangelist.com · 25/09/2026
In my recent conversation with Zdenek Nemec, Z of Apiary and Superface fame, we talked about just how hard it is for agents to onboard with your APIs. I am painfully aware of this in my own work, but… apievangelist.com/2026/09/25/the-we…
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API Evangelist @apievangelist.com · 25/09/2026
Zdenek Nemec has been thinking about machines integrating with APIs on their own longer than almost anyone I know — from API Blueprint at Apiary through Superface, which he built around the idea of… conversations.apievangelist.com/sto…
Portrait of Zdenek Nemec, founder of Superface, from the API Evangelist conversation.
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API Evangelist @apievangelist.com · 25/09/2026
Compare vendors on what they ship. apis.io
apis.io promo card: Compare vendors on what they ship. Six facets, nineteen dimensions, 26,808 providers, one rubric. Read the score before you read the sales deck.
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API Evangelist @apievangelist.com · 25/09/2026
I have spent two days running our profiling pipeline hard against the backlog — a few hundred companies, each one probed the way an agent would probe it: fetch the front door, look for a… apievangelist.com/2026/09/25/the-wa…
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API Evangelist @apievangelist.com · 25/09/2026
People do not ask their LLMs for `POST /v1/refunds`. They ask "can I give a partial refund instead of refunding the whole charge?" And when they hand the work to an agent they… apievangelist.com/2026/09/24/overla…
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API Evangelist @apievangelist.com · 24/09/2026
Back in June I wrote that Kong Konnect has two front doors and neither one is the one I want. There was the platform admin API behind a personal access token, and there was the… apievangelist.com/2026/09/24/kong-a…
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API Evangelist @apievangelist.com · 24/09/2026
Spectral is an open-source OpenAPI, AsyncAPI, and JSON Schema focused linting tool created by now acquired Stoplight. The tool is much like ES Lint for JavaScript, and Rubocop for Ruby, it spots mistakes in code. At first people… apisyouwonthate.com/p/3ef67300-cc39…
APIs You Won't Hate logo
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API Evangelist @apievangelist.com · 24/09/2026
Amazon Opened Seller Central To Agents, And Kept The Storefront Closed apievangelist.com/2026/09/24/amazon…
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API Evangelist @apievangelist.com · 24/09/2026
LLM SEO: How Do You Nudge an LLM? apievangelist.com/2026/09/24/llm-se…
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API Evangelist @apievangelist.com · 23/09/2026
Zuplo Declares A Whole MCP Server Inside Its OpenAPI apievangelist.com/2026/09/23/zuplo-…
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API Evangelist @apievangelist.com · 23/09/2026
Centralized Decisions, Distributed Enforcement, And The Org Chart Behind The Gateway apievangelist.com/2026/09/23/centra…
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API Evangelist @apievangelist.com · 22/09/2026
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API Evangelist @apievangelist.com · 21/09/2026
What is the difference between a bot and an agent? apis.io/analytics/
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API Evangelist @apievangelist.com · 17/09/2026
OpenAPI, AsyncAPI, JSON Schema, Arazzo, Overlay, Spectral, APIs.json, MCP and A2A — read from their published schemas, mapped by what each one points at, which property does which job, and how much vocabulary they share. standards.apievangelist.com/relationships/
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API Evangelist @apievangelist.com · 16/09/2026
Understand the market. APIs power the desktop, the web, mobile -- and now AI. 26,891 providers scored on what they actually publish. apis.io
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API Evangelist @apievangelist.com · 15/09/2026
Influence the market. Your APIs are how you influence an AI-driven market. Your Kin Score is the shape agents read. Claim it. Move it. apis.io
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