The API Changelog
Bruno Pedro, Vania CoelhoCurated API moves. Unfiltered expert takes.
| Platform |  | Pricing | Only free issues | Publishes | Twice weekly |
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| Issues | 284 | Founded | 7 years ago | Last Issue | 16 days ago |
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apichangelog.substack.comLatest Issues
AWS Agent Registry, Tyk AI Studio, Bump Flower, Redocly Code Mode for MCP
This is issue 2026.42 of the API Changelog, a mix of API news, commentary, and opinion. Today we’re changing our usual format. Now, once a month, we invite a guest who comments on the previous month’s news. And this time we’re happy to have...
The Architectural Limits of Agentic iPaaS
Should agents generate integration code once or let AI figure out how to consume APIs whenever they need to? It's true that dynamic inference at runtime can cause hallucinated payloads, unpredictable latency, and higher costs. On the other...
Interactive API Testing as the Primary Interface
Reading isn’t enough when you want to learn something new. To actually learn how to do something, you need to try it. Perhaps you’ll fail a few times, but that’s all part of the learning process. Figuring out how to use an API isn’t any dif...
Capabilities, Capabilities, Capabilities
When a word means everything, it means nothing. Some words seem more prone to being overloaded than others. In our case, that word is capability. The trouble is that different people end up using it to convey different meanings. When engine...
Why AI Agents Need Standard Observability
There’s no way to know what an AI agent is doing. Not in the sense of knowing exactly the steps the agent took to complete a task, or to reach a failing state. There’s no backtrace, no information about why something didn’t work. The only t...
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Author of "Building an API Product."
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