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GET readme.io HTTP 200161 ms22.9 KB$0.001437 captured Aug 7, 2026

readme.io, as data

One API turns any readme.io 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 161 ms
Page size
22.9 KB of markdown, 421 lines
Fields
Business Name, Address, Phone, Category
Captured
Aug 7, 2026

Free balance on signup, no card. This readme.io page cost $0.001437 to fetch.

response 200 · 161 ms · 22.9 KB
Create reusable content blocks of Markdown, accordions, card, and banners that update across all pages simultaneously.Add interactivity beyond plain text.Edit once, update everywhere.Customize components from our MarketplaceUpload your Open API spec and ReadMe generates a dynamic API Reference withcode samples and auth handling.Drag and drop files or import via URLConnect directly to GitHub or GitLab repositoriesAutomate syncing with CLI or API Sync"description": "This operation will update a pet in the database.",This operation will update a pet in the database.Build API references, no spec requiredBuild your API reference from scratch using ReadMe's visual API Designer. Point, click, publish. No YAML or JSON required.Document endpoints without writing any codeDefine parameters, requests, and errorsNo OpenAPI specification needed to startPublish and manage multi-language docs in one hub. Built-in localized navigation and search make supporting worldwide.Publish and manage multi-language docsBuilt-in localized navigation and searchWrite docs with ReadMe's MCP ServerUpdate your docs from Claude Code, Cursor, or CI. Give your agent full read and write access to your documentation.Create and manage pages with promptsGenerate changelogs on every new releaseBuild style guides from top-performing pages“ Out-of-the-box features that actually move the needle, collaborative editing for every product team, and bi-directional sync. ReadMe was the obvious choice for getting to best-in-class developer experience. ”Head of Dev Experience @SocureAPI documentation that actually helps developers buildAuto-generate an interactive API explorer from your OpenAPI spec, surface API keys directly in your docs, and give developers everything they need to makeEnterprise-ready docs, out of the box
POST /scrape · readme.io/index.md · markdown · Showing 29 of 421 lines · captured Aug 7, 2026

What Spider does on readme.io

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.

161 ms · $0.001437
/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 readme.io'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://readme.io/", "return_format": "markdown"}'
plain request · no browser, no selectors

What readme.io costs

Multiplied from the measured 22.9 KB page. Estimates round to the cent.

cost measured
This page, once 22.9 KB over HTTP, measured $0.001437
This page, daily for a month 30 fetches at the measured price ≈ $0.04
1,000 pages this size 22.4 MB at the measured price ≈ $1.44
10,000 pages this size 223.8 MB at the measured price ≈ $14.37

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 readme.io.

The capture above took 161 ms and cost $0.001437. The same call takes any URL on readme.io.

Get an API key

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