Validate an RSS 2.0, Atom or JSON Feed by URL or pasted text: detected format, well-formedness checks, required and recommended elements, date and enclosure checks, grade and score.
Validate the RSS/Atom/JSON Feed at a URL (or a page that links to one): detected format, well-formedness, required and recommended elements, dates, enclosures; returns grade, score and coded issues.
Validate feed text you send in (offline, no outbound request): same checks and report as /v1/check.
Easiest way: the APIHub CLI. Credits cover x402, no wallet needed.
# install and set up once
npx @apihubio/cli register
npx @apihubio/cli topup 10
# call this service
npx @apihubio/cli call -X GET "https://proxy.apihub.io/feed-validator/v1/check?url=https://hnrss.org/frontpage"Or call the proxy directly (curl / any HTTP client):
curl https://proxy.apihub.io/feed-validator/v1/check?url=https://hnrss.org/frontpage \
-H "Authorization: Bearer ahk_your_key"
# If credits available: charged automatically, returns 200
# Otherwise: returns 402 (pay via @x402/fetch or top up credits)Estimate your monthly cost for RSS/Atom Feed Validator.