Endpoint · actionPOSTcors-header-checker.underscoredone.com /check
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.
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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.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.01 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://cors-header-checker.underscoredone.com/check
Seen
first 29 days ago · last 10 hr ago
54 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC, Solana
Listed on?
Base, Solana
Buy it through Teppi
- ?Pay on delivery
- 0.012000 USDC (0.010000 to the seller, 0.002000 fee)
- Where
- https://api.teppi.xyz/v1/via/cap_01M1RD8D2YSDNHCT5M23QGCP2C
- ?Ask the price
curl -si -X POST https://api.teppi.xyz/v1/via/cap_01M1RD8D2YSDNHCT5M23QGCP2C -H 'content-type: application/json' -d '{}'
About
- ?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.
- URL
- https://cors-header-checker.underscoredone.com/check
- Method
- POST
- Class
- action
- ?Checkable to
- L1
- Endpoint id
- cap_01M1RD8D2YSDNHCT5M23QGCP2C
- ?Badge
Reads live. UNRATED until paid calls earn a letter.
- Markdown
- [](https://teppi.xyz/endpoint/cap_01M1RD8D2YSDNHCT5M23QGCP2C)
- HTML
- <a href="https://teppi.xyz/endpoint/cap_01M1RD8D2YSDNHCT5M23QGCP2C"><img src="https://api.teppi.xyz/badge/cap_01M1RD8D2YSDNHCT5M23QGCP2C.svg" alt="Teppi delivery record"></a>
- Image
- https://api.teppi.xyz/badge/cap_01M1RD8D2YSDNHCT5M23QGCP2C.svg
Verify it yourself
npx teppi-check https://cors-header-checker.underscoredone.com/checkcurl -s https://api.teppi.xyz/v1/trust/cap_01M1RD8D2YSDNHCT5M23QGCP2C