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Give it a feed URL (or a website that links to its feed) and get a JSON report: detected format, XML well-formedness, required and recommended elements, date formats, duplicate IDs, enclosures and basic podcast fields. Coded issues with line numbers, a grade (A+ to F) and a score out of 100. Handles RSS 2.0, Atom 1.0, RSS 1.0 and JSON Feed. For CI checks and publishing pipelines.
Hi everyone, this is RSS/Atom Feed Validator API.
Give it a feed URL, or a website that advertises its feed, and it returns a JSON report: the detected format, XML well-formedness checks (mismatched tags, bare ampersands, undefined entities, with line numbers), required and recommended elements, RFC 822 and RFC 3339 dates, duplicate guid/id values, enclosure attributes and basic podcast fields. Issue codes are stable snake_case strings with a severity of error, warning or info, plus an overall grade (A+ to F) and a score out of 100.
Formats: RSS 2.0 (and older 0.9x), Atom 1.0 (RFC 4287), RSS 1.0 (light checks) and JSON Feed 1 / 1.1.
Two endpoints:
- GET /v1/check?url= reads the URL (up to 5 redirects, first 1 MB). If it is an HTML page it follows the first feed and lists up to 4 others under discoveredFrom. Cached for 6 hours per URL; fresh=1 bypasses the cache.
- POST /v1/validate checks feed text you send in (XML or JSON Feed, up to 1 MB), offline, with no outbound request.
Limits: the rule set and the XML parser are our own, so results can differ from other validators and do not guarantee acceptance by any podcast directory or feed reader. Feeds over 1 MB return grade unchecked, and a URL that is not a feed returns not_a_feed; neither is a pass. One error scores 75 (grade C), so gate on summary.errors rather than on the grade alone. Private-network targets are rejected. Not affiliated with the W3C or any feed reader.
Where to find it: RapidAPI (public, https://rapidapi.com/tossneon0/a...), API.Market and APIHub. Product site: https://feed-validator.glowhalo.org
Feedback on the checks and the scoring is welcome.
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About RSS/Atom Feed Validator API on Product Hunt
“Validate RSS, Atom and JSON Feed, graded as JSON”
RSS/Atom Feed Validator API was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #376 on the daily leaderboard. Give it a feed URL (or a website that links to its feed) and get a JSON report: detected format, XML well-formedness, required and recommended elements, date formats, duplicate IDs, enclosures and basic podcast fields. Coded issues with line numbers, a grade (A+ to F) and a score out of 100. Handles RSS 2.0, Atom 1.0, RSS 1.0 and JSON Feed. For CI checks and publishing pipelines.
RSS/Atom Feed Validator API was featured in API (98.8k followers) and Developer Tools (521.6k followers) on Product Hunt. Together, these topics include over 101.9k products, making this a competitive space to launch in.
Who hunted RSS/Atom Feed Validator API?
RSS/Atom Feed Validator API was hunted by GlowHalo. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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