Common Crawl API

Get Common Crawl data as clean JSON with one key: 2 endpoints, 1 to 5 credits per call, the same response shape as every other platform.

What you get#

Onekey exposes Common Crawl as 2 endpoints behind one API key: 2 endpoints return a list (data is an array). Every answer uses the same envelope (success, data, metadata, error), the cost is reported in metadata.credits_charged, and fields are mapped onto the unified schema so the code you write for Common Crawl also works for the rest of the web tools category.

Endpoints#

EndpointWhat it doesParametersCreditsStatus
crawlsList Common Crawl crawl collections (id, name, date range, CDX API URL).-1stable
indexCommon Crawl index captures for a URL or domain in one crawl.url*, crawl5stable

A * marks a required parameter. Each endpoint name links to its reference page with the full parameter table, caching window and a recorded response.

Make a request#

This calls commoncrawl.crawls (1 credit, stable). Replace YOUR_API_KEY with your key; sign up, no card. 1,000 free credits cover the open-platform endpoints. Hard-to-reach platforms (X, TikTok, Instagram, Reddit, and others marked on their page) need a verified email and a purchased pack.

curl "https://api.onekey.dev/v1/commoncrawl/crawls" \
  -H "x-api-key: YOUR_API_KEY"

Fields you get back#

These unified fields come back from Common Crawl, with the same names as on every other platform. The count is how many of its 2 mapped endpoints return the field; a field the source lacks is null, never missing. 8 platform-specific fields (ext.<name>) come on top, documented on each endpoint page.

FieldTypeEndpoints
entity.createdAtISO 8601 date1
entity.idstring1
entity.languagestring1
entity.namestring1
entity.urlURL1

The full schema is in Unified schema.

Pricing#

Common Crawl calls cost 1 to 5 credits, flat per endpoint. Free when served from cache (0.2 credit for a cached response over 100 KB). Invalid, failed or not-found calls are not charged. See pricing for credit packs.