Rate limits

Two limits apply to every key: a per-minute request rate that scales with your plan, and your plan's monthly credit quota. The per-minute window is 60 seconds, tracked per endpoint. Hitting the per-minute limit returns 429.

At the monthly quota, free keys stop with a 429 until credits reset. Paid plans keep working: extra credits are billed at your plan's per-1,000 overage rate on a separate invoice when the period closes, capped at one extra month of credits, after which calls return 429. Prefer a hard stop? Switch overage billing off under Plan & Billing and your key stops at the quota instead - nothing extra is ever billed.

Requests per minute

Response headers

{
  "url":          "https://stripe.com",
  "selector":     "section.hero-section-container",
  "autoDetected": true,
  "sections": [
    { "selector": "section.hero-section-container", "label": "Financial infrastructure…", "elements": 343 },
    { "selector": "section.business-sizes-section", "label": "Powering businesses of all sizes.", "elements": 604 },
    …
  ],
  "framework":    "tailwind",
  "code":         "<section class=\"relative w-full\">\n  <h1 class=\"text-[#000000] …\">…</h1>\n</section>",
  "css":          null,
  "tokens": {
    "colors":       ["#000000", "#533afd"],
    "fontFamilies": ["sohne-var"],
    "fontSizes":    ["48px", "16px"],
    "spacing":      ["16px", "24px"],
    "radii":        ["8px"],
    "shadows":      ["0 2px 4px rgba(0,0,0,.1)"]
  },
  "theme":   "light",
  "assets":  { "images": ["https://…/hero.png"], "fonts": [] },
  "summary": { "elements": 42, "declarations": 310, "mappedToTailwind": 180, "arbitrary": 44, "styledCoverage": 97, "repeatedGroups": 1, "truncated": false },
  "usage":   { "creditsSpent": 25, "creditsThisMonth": 25, "monthlyLimit": 100, "remaining": 75, "cached": false }
}

• X-RateLimit-Limit / X-RateLimit-Remaining - your per-minute allowance and what's left of it in the current window.
• X-RateLimit-Reset - seconds until the window resets.
• X-Quota-Limit / X-Quota-Remaining - your monthly credit quota and remainder. Omitted on unlimited plans.
• X-Overage-Credits - present only when a paid key is past its quota: the billed overage credits used this period.
• X-Cache - HIT when the response came from the 24-hour cache, MISS when it was extracted live, BYPASS when fresh=true skipped the cache.
• X-Request-Id - unique id for this call, on every response. Errors echo it as data.requestId; include it when reporting a problem.