the402 endpoint detail

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x402-filings.datalayer.workers.dev apps lookup

https://x402-filings.datalayer.workers.dev/v1/apps/lookup

answers 402

App Store listing data for any app on any storefront: current and all-time star ratings with review counts, version, release notes, size, price, content rating, genres and release dates. Includes a version-sentiment read comparing the current version's rating against its all-time average, which is how you spot a release that damaged an app. Look up by numeric App Store id or search by name.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.01
Network
base
Pay to
0x917e635b83F0dd7e8172c55EC4EEbb28B734cA85
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
475 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:13:17.520Z (31d ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fx402-filings.datalayer.workers.dev%2Fv1%2Fapps%2Flookup"