GET seld.be HTTP 200220 ms3.4 KB$0.000038 captured Aug 7, 2026
seld.be, as data
One API turns any seld.be page into markdown, structured JSON, its link graph or a screenshot, and crawls the whole site the same way. The panel shows the real response we captured.
- Render mode
- Plain HTTP, no browser needed
- Response
- HTTP 200 in 220 ms
- Page size
- 3.4 KB of markdown, 67 lines
- Fields
- Title, Content, Date, Source and 2 more
- Captured
- Aug 7, 2026
Free balance on signup, no card. This seld.be page cost $0.000038 to fetch.
Making public API surfaces changes more visible in open source librariesWhile reviewing pull requests it often happened to me that I missed a new public (or even protected) method being added. A public constant slips in. A new property with a suboptimal name or type.This is in general not a huge deal in closed source...Narrowing types for static analysisI have spent the last year moving a few big old codebases, including Composer, to PHPStan's level 8. Here are a few lessons I think I have learned in the process.I was for a while skeptical about using the baseline feature as it seemed to me like...(What feels like) a lifetime of maintaining open source projects has left me with some things to say about the haters. I'm not sure why.Trying to do a light take of it instead of getting mad, here is a post categorizing them.My blog was always based on some home-grown CMS I built during my studies in.. checks CV 2007-2008.This was mostly fine but it had no markdown support and it was one more server to manage. I would...Web Development on Windows in 2018I have been developing web apps on Windows for the last 10+ years. I ran PHP, Apache then Nginx, MySQL and Postgres, Redis and others. I dabbed in VMs at some point but was always dissatisfied with...PHP Versions Stats - 2018.1 EditionIt's stats o'clock! See 2014, 2015, 2016.1, 2016.2, 2017.1 and 2017.2 for previous similar posts.A quick note on methodology, because all these stats are imperfect as they just sample some subset...PHP Versions Stats - 2017.2 EditionIt's stats o'clock! See 2014, 2015, 2016.1, 2016.2 and 2017.1 for previous similar posts.A quick note on methodology, because all these stats are imperfect as they just sample some subset of the...PHP Versions Stats - 2017.1 EditionIt's stats o'clock! See 2014, 2015, 2016.1 and 2016.2 for previous similar posts.A quick note on methodology, because all these stats are imperfect as they just sample some subset of the PHP user...What Spider does on seld.be
Same key, five endpoints. The numbers under a cell were measured on this page.
Page to markdown
Clean text for RAG and LLM context, boilerplate removed. The lane that runs without a key.
220 ms · $0.000038Page to JSON
Spider reads the page and names the fields. Pass your own schema when you need exact keys.
Rendered capture
Real Chromium, full-page PNG. The same call also returns the rendered HTML.
The call behind the panel
This request produced the response above. Paste it with your key and you get the same bytes.
curl -X POST https://api.spider.cloud/scrape \
-H "Authorization: Bearer $SPIDER_API_KEY" \
-H "Content-Type: application/json" \
-d '{"url": "https://seld.be/", "return_format": "markdown"}'from spider import Spider
app = Spider()
params = {"return_format": "markdown"}
page = app.scrape_url("https://seld.be/", params=params)
print(page[0]["content"])import { Spider } from "@spider-cloud/spider-client";
const app = new Spider();
const [page] = await app.scrapeUrl("https://seld.be/", {
return_format: "markdown",
});
console.log(page.content);What seld.be costs
Multiplied from the measured 3.4 KB page. Estimates round to the cent.
1 GB of transfer costs $1, plus $0.001 per CPU minute, and failed requests cost $0. Crawling daily? The Unlimited plan is a flat monthly rate.
Point this at the rest of seld.be.
The capture above took 220 ms and cost $0.000038. The same call takes any URL on seld.be.