Website Contacts API

What is the Website Contacts API?

Pass a business website or a bare domain and get its public contact details as JSON. Up to 3 pages of the same site are read: the home page, then its contact or about pages. Pages are read as HTML; JavaScript is not run. emails[] holds role addresses such as info@, contact@, hello@, office@, sales@, support@ and booking@. Addresses that carry a person's name (jane.doe@) are not returned, and a webmail address is returned only when the site shows it as its contact. phones[] is E.164 (+15125550100); a number that cannot be normalized is left out, not guessed. socials{} has one profile URL each for facebook, instagram, linkedin, tiktok, x and youtube — share buttons and post links are not profiles — and a network is null when the site links no profile for it. contactPageUrl is the contact page that was read, or null when the site has none. pagesScanned counts the pages read. robots.txt is respected for the CaptapiBot user agent; when it disallows the site the response is empty with blockedByRobots true and costs 0. Every key is always present. A call that finds at least one email, phone or social profile costs 1 credit; an empty result costs 0, and failures cost 0. Use the results in line with the anti-spam and privacy rules that apply to you (for example GDPR and CAN-SPAM). cache defaults to false; cache=true reuses a 24 hour response and cache hits are free.

What you get

• Role email addresses (info@, contact@, sales@ and similar)
• Phone numbers in E.164 format
• One profile URL each for Facebook, Instagram, LinkedIn, TikTok, X and YouTube
• 1 credit when contacts are found; 0 for an empty result or a failure

Fill in the parameters below and copy a ready-to-run request, or open the live Playground to run it against your account (no API key paste).

curl "https://api.captapi.com/v1/website/contacts?url=https%3A%2F%2Fatxfamilydental.com" \
  -H "Authorization: Bearer capt_live_..."
# or: -H "x-api-key: capt_live_..."

Example response

{
  "success": true,
  "data": {
    "url": "https://atxfamilydental.com/",
    "domain": "atxfamilydental.com",
    "emails": [
      "info@atxfamilydental.com"
    ],
    "phones": [
      "+15125550100"
    ],
    "socials": {
      "facebook": "https://www.facebook.com/atxfamilydental",
      "instagram": null,
      "linkedin": null,
      "tiktok": null,
      "x": null,
      "youtube": null
    },
    "contactPageUrl": "https://atxfamilydental.com/contact",
    "pagesScanned": 2,
    "blockedByRobots": false
  }
}

Billing metadata is returned in response headers: X-Captapi-Credits (credits charged), X-Captapi-Cache (hit or miss), and X-Captapi-Request-Id (include it when contacting support). Where the response has a source field, it names the path that served the data: native, extended, cache or asr. Failed requests (4xx/5xx) are never charged. See the full list of error codes in the error reference.

Response structure

A successful call returns success and a data object with the following fields:

Parameters

Authentication: send your key as Authorization: Bearer capt_live_.... A typical call costs 1 credit. Pass cache=true for a free 24h cache hit; default is always fresh.

How it works

1. 1. Sign up — get 100 free credits, no card required.
2. 2. Create a key from your dashboard.
3. 3. Send one request to /v1/website/contacts and parse the JSON response.

Use cases

Frequently asked questions