cors-header-checker.underscoredone.com
cors-header-checker.underscoredone.com
· cors-header-checker.underscoredone.com
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 you every permission value exactly as the server sent it. Perfect for figuring out why a browser is blocking a request, confirming a freshly deployed service is configured correctly, or auditing whether a public API allows credentialed cross-origin calls.
cors-header-checker.underscoredone.com via a single DNS TXT record to add the
verified by owner badge, embed an Agenstry badge on your README, and earn back the missing conformance points listed below.
F
Conformance score: 19/100
F-grade: card is reachable but fails most operational signals.
click to expand breakdown ▾
click to collapse breakdown ▴
agent-card.json changed within the last 7 days. We track these so downstream callers can react.
Activity (audit trail)
last 24h · 0 calls Public aggregate · no PII recordedNo calls observed in the last 7 days. Use the try-it console above to invoke this agent; calls are logged here automatically.
Endpoints
| Endpoint | Price | Currency |
|---|---|---|
https://cors-header-checker.underscoredone.com/check
|
0.01 | USDC |
0xe9740820225b3918b4ddd1292c7ca4ca0e2c2f08 · basescan ↗
| Agent card | https://cors-header-checker.underscoredone.com |
| Provider | https://cors-header-checker.underscoredone.com |
| Docs | https://cors-header-checker.underscoredone.com |
Health · last 0 probes
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Markdown / HTML snippets
[](https://agenstry.com/agents/cors-header-checker.underscoredone.com) [](https://agenstry.com/agents/cors-header-checker.underscoredone.com) [](https://agenstry.com/agents/cors-header-checker.underscoredone.com) [](https://agenstry.com/agents/cors-header-checker.underscoredone.com)
Audit-grade evidence bundle
JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against
our JWKS. See the methodology.
Raw agent card JSON
{
"_source": "agentic.market",
"service": {
"id": "cors-header-checker-underscoredone-com",
"name": "cors-header-checker.underscoredone.com",
"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 you every permission value exactly as the server sent it. Perfect for figuring out why a browser is blocking a request, confirming a freshly deployed service is configured correctly, or auditing whether a public API allows credentialed cross-origin calls.",
"domain": "cors-header-checker.underscoredone.com",
"provider": "cors-header-checker.underscoredone.com",
"providerUrl": "",
"category": "",
"networks": [
"Base"
],
"enriched": false,
"endpoints": [
{
"url": "https://cors-header-checker.underscoredone.com/check",
"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 you every permission value exactly as the server sent it. Perfect for figuring out why a browser is blocking a request, confirming a freshly deployed service is configured correctly, or auditing whether a public API allows credentialed cross-origin calls.",
"pricing": {
"amount": "0.01",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "POST",
"providerName": "",
"parameters": [
{
"group": "body",
"name": "origin",
"type": "string",
"description": "",
"example": "https://myapp.com",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "url",
"type": "string",
"description": "",
"example": "https://api.github.com",
"enumValues": [],
"default": null,
"required": false
}
],
"serviceName": "CORS Header Checker",
"tags": [
"Network"
],
"quality": {
"l30DaysTotalCalls": "3",
"l30DaysUniquePayers": "1"
}
}
],
"integrationType": "",
"isNew": false,
"priceSummary": {
"minAmount": "0.01",
"maxAmount": "0.01",
"avgCostPerTransaction": "0.01",
"avgCostBasis": "exact",
"currency": "USDC"
},
"serviceName": "CORS Header Checker",
"tags": [
"Network"
],
"iconUrl": ""
}
}