Collectors · Company data

Email scraper API in Python

Emails, phones, socials and postal addresses published on a website — one record per domain. One POST from Python with domains, rows back as JSON with 13 fields, $0.02 per delivered site. No proxies or parsers to maintain.

Get an API key See the collector

A Python requests snippet that posts { — A Python requests call to the site_contacts collector returns one dict per site, at $0.02 each.

First call

Install, call, read the rows.

pip install requests

The only dependency.

import os, requests

r = requests.post(
    "https://api.quanticdata.io/v1/scraper/collectors/site_contacts/run",
    headers={"Authorization": f"Bearer {os.environ['QD_API_KEY']}"},
    json={
        "domains": ["quantumproxies.io","quanticdata.io"],
        "max_pages": 4,
    },
    timeout=120,
)
r.raise_for_status()
run = r.json()["payload"]
print(run["count"], "rows,", run["cost"]["usd"], "USD")
for row in run["results"]:
    print(row.get("domain"), row.get("url"), row.get("site_name"), row.get("emails"))

Python: one Site contacts run (Two sites), printing domain, url, site_name, emails

The key comes from an environment variable, never from the code. The run answers in the same request when it finishes in time; payload.results holds the rows and payload.cost what they cost.

Request parameters

What the collector takes.

Input of the Site contacts collector
Parameter	Type	Required	Meaning
`domains`	array	yes	Domains or site URLs, one per line (max 20).
`country`	string	no	ISO 3166-1 alpha-2 code — proxy exit geo and Google locale (gl). Omit for the default pool.
`max_pages`	integer	no (default 4)	Homepage + up to N−1 contact-ish pages (1–8).
`max_results`	integer	no (default 20)	How many sites to deliver at most (1–200). You pay only for delivered sites.

Response fields

13 fields per site.

Fields of each row (site)
Field	Type	What it holds
`domain`	string	Registrable host (no www).
`url`	string	Homepage URL fetched.
`site_name`	string, nullable	og:site_name / JSON-LD name / title.
`emails`	string[]	Distinct emails found.
`phones`	string[]	Distinct phone numbers found.
`socials`	object	{ facebook, instagram, linkedin, twitter, youtube, tiktok } URLs.
`addresses`	string[]	Postal addresses from JSON-LD when present.
`contact_pages`	string[]	Contact/about pages that were scanned.
`pages_scanned`	integer	Pages fetched for this domain.
`status`	string	ok \| unreachable \| blocked
`description`	string, nullable	The site's own meta description.
`language`	string, nullable	Language of the homepage.
`vat_id`	string, nullable	Italian VAT number (Partita IVA) printed on the scanned pages, check digit verified.

Add ?format=csv to the runs endpoint to get the same rows as CSV.

Long runs

Run in the background, then poll.

A run that needs more time can go to the background: send "async": true, get 202 with the run id, and poll the runs endpoint until the status is done. Reading a run is free.

import os, time, requests

H = {"Authorization": f"Bearer {os.environ['QD_API_KEY']}"}
r = requests.post("https://api.quanticdata.io/v1/scraper/collectors/site_contacts/run", headers=H,
                  json={**{"domains":["quantumproxies.io","quanticdata.io"],"max_pages":4}, "async": True}, timeout=30)
run_id = r.json()["payload"]["run_id"]
while True:
    run = requests.get(f"https://api.quanticdata.io/v1/scraper/collectors/runs/{run_id}", headers=H, timeout=30).json()["payload"]
    if run["status"] in ("done", "failed"):
        break
    time.sleep(5)
print(run["status"], run["count"])

Python: background run and polling

Errors

What can come back, and what is billed.

Collector run errors
Status	Meaning	Billed
`400`	The input does not match the collector (`payload.errors`)	No
`401`	Missing or wrong API key	No
`402`	Balance and free credit do not cover the run: top up	No
`422`	The input can never resolve; retrying the same input cannot help	No
`424`	The run failed at the source (blocked, timed out, layout changed); safe to retry	No
`429`	Rate limit or a per-account brake; wait for `Retry-After`	No

Only delivered rows are billed: a run that delivers nothing costs nothing.

Price

$0.02 per delivered site.

What Site contacts rows cost at list price
Rows	Cost
1	$0.02
1,000	$20.00
10,000	$200.00

Up to 200 sites per run; split larger jobs into several runs. The $2 free credit every month covers about 100 sites. No subscription; paid tiers lower the unit price. All collector prices: collector pricing.

Before you run it

Questions developers ask

Is there a free Site contacts API?

Every account gets $2 of free usage each month, about 100 sites of this collector at $0.02 each, with no card.

Do I have to handle proxies, retries or blocks?

No. The collector runs on our network and handles them; a run blocked at the source returns 424 and is not billed.

How many rows can one run return?

Up to 200 sites per run (the max_results input, where the collector has one).

Can an AI agent run it?

Yes: the MCP server exposes it as the run_collector tool, with the same input and price. See the MCP server.

Run it on the free credit.

Create an API key, export it as QD_API_KEY and run the example. $0.02 per delivered site, no subscription.

Get an API key Email scraper API