{"provider":{"host":"cors-header-checker.underscoredone.com","name":"CORS Header Checker","score":58.3,"live":true,"checkedAt":"2026-10-27T19:00:11.428Z","uptime72h":100,"lastCheck":{"httpStatus":402,"ms":1259,"note":"valid x402 v2 terms"},"endpoints":1,"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"cheapestUsd":"0.01","income7dUsd":"0.39","payers7d":11,"transfers7d":39,"payoutAddressShared":true,"claimed":false,"page":"https://logicnodes.io/observatory/p/cors-header-checker.underscoredone.com"},"endpoints":[{"url":"https://cors-header-checker.underscoredone.com/check","method":"POST","priceMicroUsd":10000,"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"description":"Sends a real request to any URL you provide, attaches an Origin header, and reads back all six standard cross-origin permission headers the server returns. Tells you whether cross-origin requests are enabled at all, whether your specific origin is permitted, and shows every permission value exactly as the server sent it. Useful for finding why a browser is blocking a request, confirming a new deployment is configured correctly, or auditing whether a public API allows credentialed calls."}]}