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Delx Open Redirect Audit
x402
Delx Open Redirect Audit is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-13).
Validates a redirect target URL against an exact hostname allowlist and returns a deterministic pass/fail JSON result
Price / call$0.003
Success—
StatusUnknown
How this service works
Check a redirect target against an exact hostname allowlist. Use it as a bounded preflight or analysis step inside an enterprise agent workflow before data, policy, integration, security, or commercial decisions reach production. Returns deterministic machine-readable JSON for $0.003 USDC via x402 on Base. Execution is first-party, local-only, stateless, memory-only, and has no paid upstream or input retention. Results are advisory; the caller remains responsible for authorization and productio…
Output
A deterministic machine-readable JSON object indicating whether the redirect target's hostname appears in the provided allowlist, with a pass or fail verdict and relevant details about the match result. Stateless and advisory — no data is retained.
Example use cases
Pre-redirect safety gate in checkout flow
“We're about to redirect the user to https://pay.thirdparty.io/return after payment. Can you audit that redirect target against our allowed hosts list — pay.thirdparty.io and billing.myapp.com — and tell me if it's safe to proceed?”
Open redirect vulnerability triage
“I have a URL that came in via a query parameter: https://evil.example.com/phish. Run an open redirect audit on it against our approved hosts list [app.mycompany.com, auth.mycompany.com] so I know whether to block it.”
Policy enforcement in OAuth callback handling
“Before we honor the redirect_uri https://app.legit.com/oauth/callback in this OAuth flow, validate it against our registered callback hosts [app.legit.com, staging.legit.com] and return a machine-readable verdict.”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/open-redirect-auditWhen to prefer
Choose this endpoint when you need a fast, stateless, deterministic preflight check for redirect safety inside an automated agent workflow — particularly when you have a known allowlist and need a machine-readable JSON verdict before acting. Prefer it over ad-hoc regex checks or general-purpose URL parsers when you want an auditable, reproducible security gate with no data retention and no upstream dependencies.
Side effects
- Missing or malformed target URL returns a validation error
- Empty allowed_hosts array may result in automatic fail verdict
- Malformed hostname entries in allowlist may cause unexpected non-matches
- Non-URL strings passed as target may return parse errors
- Network or service errors return non-200 HTTP status
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| target | string | Input field: target. |
| allowed_hosts | array | Input field: allowed_hosts. |
Output
Schema · Response
{
"type": "json",
"example": {
"schema": "delx/util-open-redirect-audit/v1",
"allowed": false,
"finding": "external_host_not_allowlisted",
"target_host": "evil.example",
"recommendation": "resolve relative paths and enforce exact host allowlist"
}
}Tags
x402
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