> ## Content Index > Fetch the complete content index at: https://apisyouwonthate.com/llms.txt > Use this file to discover other available public pages before exploring further. # Playwright Does API Testing Now? - URL: https://apisyouwonthate.com/newsletter/playwright-does-api-testing-now/ - Published: 2025-08-18T06:00:52.000Z - Updated: 2025-09-01T11:25:47.000Z - Description: A nonconventional use for an end-to-end testing framework, Stringify gets faster, we say goodbye to Apiary, and a review of the amazing API product that DarkSky was. - Author: Alexander Karan - Tags: 📰 APIs You Won't Hate (The newsletter) Playwright is a popular tool from Microsoft for writing component, integration and end-to-end tests for frontend. Did you know you can also use it for API testing? Playwright allows you to validate API requests in a variety of ways using [APIRequestContext](https://playwright.dev/docs/api-testing?ref=apisyouwonthate.com). While this tool enables you to set up a state via an API in UI tests, it can also be used for end-to-end tests of your API. In the TypeScript/JavaScript world, we can take this further and combine the OpenAPI Spec to validate these tests—a perfect set-up for JavaScript full-stack projects with your API and frontend in the same repo. One final thought: how did Microsoft end up owning so many of the tools and libraries for JS development? \-- Alexander ![](https://storage.ghost.io/c/b4/3e/b43eb8f8-cafd-49ee-ab1f-e4fe989d2890/content/images/2025/08/Pasted_Image_8_4_25__7_14---AM.png) ## The fastest way to build production-ready MCP servers Gram by Speakeasy: turn your API platform into an AI platform. Create tools from OpenAPI, curate into custom toolsets, and deploy hosted MCP servers [Get started today](https://app.getgram.ai/?utm%5Fmedium=email&utm%5Fsource=apisywh) ## The API Roundup *API News, links, and tools from around the web* ### [JSON Stringify Now Twice as Fast](https://v8.dev/blog/json-stringify?ref=apisyouwonthate.com) I was a little reluctant to add this as it's not API specific, but considering this is one of the main functions used in every JavaScript-powered API, I think it's worth including. The V8 team shared how a complete rethinking of `JSON.stringify` even down to its core memory and character handling has led to a 2x performance increase. Get ready for faster APIs. ### [Introducing Bump.sh Embed](https://bump.sh/blog/introducing-bump-sh-embed/?ref=apisyouwonthate.com) Bump has released embeddable API docs, giving you complete control over design, how and where they appear. Totaly feels like a step towards headless API docs, which Bump even mentioned themselves. It's exciting to see Bump consistently deliver incredible API tools. ### [API Snip](https://github.com/Tuurlijk/apisnip?tab=readme-ov-file&ref=apisyouwonthate.com) Fun little tool that crossed my BlueSky feed this week, API Snip. An interactive terminal app allowing you to select which endpoints to keep in a spec. Makes it easier to generate small, focused OpenAPI Docs. ### [Slow Express](https://github.com/express-rate-limit/express-slow-down?ref=apisyouwonthate.com) Middleware and Express go hand in hand, and another little plugin that caught my eye: Express Slow Down. This nifty library allows you to slow down API requests and is customisable via milliseconds, after X requests, and window size. It also has options for connecting to an external store. --- ## APIs You Won't Hate The latest from the team at API's You Won't Hate. ### [Goodbye Apiary.io, You'll Be Missed](https://apisyouwonthate.com/blog/goodbye-apiary-io/) Phil gives a heartfelt goodbye to the exceptional API design first documentation tool, Apiary. Unfortunately, after being acquired by Oracle back in 2017, it has been slowly killed off in favour of other tools. If you're not excited about using Oracle and still have some Apiary spec (API Blueprint) lying around, Phil walks you through moving to OpenAPI. --- ## From our Community Articles written and shared in our free [Slack community](https://slack.apisyouwonthate.com/?ref=apisyouwonthate.com). ### [The Indie API Forecasting Your Future](https://netapinotes.com/the-indie-api-forecasting-your-future/?ref=apisyouwonthate.com) Dark Sky API died once it had been acquired by Apple, and left a gaping hole in our hearts. Matthew walks us through why Dark Sky was popular and an innovative new public good indie project that has arisen to fill your weather needs. Mathew talks us through the challenges the project has faced, especially as getting hold of data has become harder, thanks to the cost-cutting of critical services by the current US government. ## Support APIs You Won't Hate When you become an member, you'll get access to members-only content while directly supporting our work. Your support helps us to keep making resources for the API community. [Become a member today](https://apisyouwonthate.com/#/portal) Thanks so much to our members: **Kin L, Juxt, Alex R, Nolan S, Frank, James D, Rich, Ryan T, and Umair**. Your support means the world to us! ✌️ Until next time, Alexander, Phil & Mike