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Lordevo CORS Check
x402
Lordevo CORS Check is a paid API for AI agents from shop.lordevo.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-31).
Tests whether a browser on a given origin can call a target URL by sending a CORS preflight (OPTIONS) and GET request, then reporting CORS headers, security flags, and permission verdicts.
Price / call$0.002
Success—
StatusUnknown
How this service works
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Output
A JSON object containing: the target URL and tested origin, an `allowed` boolean indicating whether the browser would be permitted, the raw `Access-Control-Allow-Origin` value, `allow_credentials` boolean, `allow_methods` string, `preflight_status` code, `vary_origin` boolean, `reflects_arbitrary_origin` flag, and an `issues` array listing detected CORS security problems.
Example use cases
Diagnosing blocked browser fetch
“My React app at https://dashboard.acme.com keeps getting CORS errors when calling https://api.partner.com/v2/orders with GET requests — can you run a CORS check and tell me exactly what headers are returned and whether my origin is allowed?”
Security audit for wildcard CORS
“I need to check if https://api.publicservice.io reflects arbitrary origins or uses a wildcard Access-Control-Allow-Origin — can you probe it from the origin https://evil.example.com and flag any CORS security issues?”
Verifying credentials support for cross-origin auth
“Before I ship this feature, can you verify that https://auth.internal.io/session allows CORS requests with credentials from https://app.internal.io, and confirm what methods and headers are permitted?”
Technical details
Endpoint
GEThttps://shop.lordevo.com/api/quick/cors-check?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a live, real-time CORS preflight test for a specific URL and origin combination — especially when debugging browser fetch failures, auditing third-party APIs for CORS misconfigurations, or checking for dangerous security patterns like arbitrary-origin reflection or wildcard credentials. Prefer this over manual browser DevTools inspection when automating security checks in pipelines or agent workflows.
Side effects
- Target URL is unreachable or returns a non-HTTP error — endpoint may return a network error or timeout
- Invalid URL format — returns a validation error
- Target server does not respond to OPTIONS preflight — preflight_status may be null or unexpected
- No CORS headers returned — `allowed` is false and `allow_origin` is null
- Rate-limit or 402 payment required if the x402 payment is not processed correctly
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"url": "https://api.example.com/v1/items",
"tool": "cors-check",
"issues": [],
"method": "GET",
"origin": "https://app.example.com",
"allowed": true,
"vary_origin": true,
"allow_origin": "https://app.example.com",
"allow_methods": "GET, POST",
"preflight_status": 204,
"allow_credentials": true,
"reflects_arbitrary_origin": false
}
}Tags
x402
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