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GET diagrams.net HTTP 200152 ms2.9 KB$0.000046 captured Aug 7, 2026

diagrams.net, as data

One API turns any diagrams.net 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.

target profile from the capture
Render mode
Plain HTTP, no browser needed
Response
HTTP 200 in 152 ms
Page size
2.9 KB of markdown, 46 lines
Fields
Business Name, Address, Phone, Category
Captured
Aug 7, 2026

Free balance on signup, no card. This diagrams.net page cost $0.000046 to fetch.

response 200 · 152 ms · 2.9 KB
# Security-first diagramming for teamsBring your storage to our online tool, or save locally with the desktop app. Your data stays yours—we can't access it.Start Diagramming Desktop AppFree forever • No sign-up required • Open sourceOpen SourceApache 2.0 LicenseSince 2005Trusted for 20 years## Why teams choose draw.ioProfessional diagramming without the enterprise price tag or privacy compromises.### Backwards CompatibleDiagram files created in 2005 load in today's app. Your work is never obsolete.### Share with EveryoneNo license worries—anyone can open and edit draw.io files, on any platform.### Real-time CollaborationWork together with shared cursors. Everything you expect from professional diagramming.### Privacy FirstStore your data wherever you want. We cannot access it—ever.### Open SourceApache 2.0 licensed. No artificial scarcity, no Enterprise tier for SSO.### IndependentNot VC-funded. Private company focused on great software, not inflating valuations.## Works where you workNative integrations with your favorite tools—no import/export hassle.**Google**Drive, Docs, Slides**Microsoft**SharePoint, OneDrive, Teams**Atlassian**Confluence & Jira**GitHub**Repos & Markdown**VS Code**Editor Extension**Notion**Chrome Extension## Embed diagrams anywhereEmbed interactive diagrams in your docs, wikis, or applications. Export to SVG, PNG, PDF, or keep them editable.style="width:100%; height:400px; border:0;">## Start diagramming in secondsNo account required. No credit card. Just open and create.Open draw.ioExplore Documentation
POST /scrape · diagrams.net/index.md · markdown · 46 lines · captured Aug 7, 2026

What Spider does on diagrams.net

Same key, five endpoints. The numbers under a cell were measured on this page.

/scrape

Page to markdown

Clean text for RAG and LLM context, boilerplate removed. The lane that runs without a key.

152 ms · $0.000046
/fetch

Page to JSON

Spider reads the page and names the fields. Pass your own schema when you need exact keys.

/crawl

Whole site

Follows diagrams.net's own links, respects robots, streams pages as they land.

/links

Link graph

Every internal and external URL on a page, before you decide what to fetch.

/screenshot

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.

request scrape.sh
curl -X POST https://api.spider.cloud/scrape \
  -H "Authorization: Bearer $SPIDER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"url": "https://diagrams.net/", "return_format": "markdown"}'
plain request · no browser, no selectors

What diagrams.net costs

Multiplied from the measured 2.9 KB page. Estimates round to the cent.

cost measured
This page, once 2.9 KB over HTTP, measured $0.000046
This page, daily for a month 30 fetches at the measured price ≈ $0.001367
1,000 pages this size 2.9 MB at the measured price ≈ $0.05
10,000 pages this size 28.6 MB at the measured price ≈ $0.46

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 diagrams.net.

The capture above took 152 ms and cost $0.000046. The same call takes any URL on diagrams.net.

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