Delx Commerce — URL Redirect Target Check

x402

Delx Commerce — URL Redirect Target Check is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).

Validates whether a URL redirect target is allowed by checking its host, scheme, and resolved URL against a configurable allowlist

Price / call$0.001

Seller volume →—

Success—

StatusUnknown

How this service works

Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.

Output

Returns a JSON object indicating whether the redirect target is allowed, including the resolved URL, extracted host, scheme, and a pass/fail status. Also provides an evidence block with a SHA-256 hash of the input, confirmation that no data was retained, and a count of external calls made (zero for this in-memory check).

Example use cases

Open redirect vulnerability protection

“Before processing this user-supplied redirect URL 'https://phishing.io/login', verify it's safe — only allow hosts under myapp.com and partner.com, and only https scheme is acceptable.”

OAuth callback URL validation

“I need to verify that the redirect_uri 'http://callback.example.com/auth' coming from an OAuth request is pointing to an allowed host — my allowed hosts are example.com and auth.example.com, allowed schemes are https only.”

Link shortener destination check

“After resolving a short link, the target is 'ftp://files.unknown.org/download' — check if that destination is permitted, since I only allow https and http schemes and the hosts docs.mysite.com and assets.mysite.com.”

Technical details

Endpoint

POSThttps://commerce.delx.ai/api/v1/x402/url-redirect-target-check?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need a lightweight, verifiable, pay-per-use URL redirect safety check with no retained data and cryptographic evidence of the inputs processed. Ideal for agents handling user-supplied redirect URLs, OAuth callbacks, or link shortener destinations where open redirect vulnerabilities are a concern and you need an auditable result without standing up your own validation infrastructure.

Side effects

Invalid or malformed target URL — validation fails with an error
Base URL cannot be resolved or is malformed
Allowed hosts list exceeds 256 entries — request rejected
Target URL exceeds 8192 character limit
Network-level issues reaching the Delx Commerce endpoint
Payment not included or insufficient USDC — 402 response returned

Input

Schema · Request body

Field	Type	Description
target	string	Target supplied to URL Redirect Target Check; used only for this bounded calculation and processed in memory without retention.
base_url	string	Base URL supplied to URL Redirect Target Check; used only for this bounded calculation and processed in memory without retention.
allowed_hosts	array	Allowed Hosts supplied to URL Redirect Target Check; used only for this bounded calculation and processed in memory without retention.
allowed_schemes	array	Allowed Schemes supplied to URL Redirect Target Check; used only for this bounded calculation and processed in memory without retention.

Output

Schema · Response

{
  "type": "json",
  "example": {
    "result": {
      "host": "example.com",
      "scheme": "https",
      "allowed": true,
      "resolved_url": "https://example.com/account"
    },
    "schema": "delx/util-url-redirect-target-check/v1",
    "status": "pass",
    "evidence": {
      "retained": false,
      "input_sha256": "6a1d59c98f30fc06ce9df9cfcba2c305b66be8e5eb56388a33bf40e364792c0c",
      "external_calls": 0
    },
    "operation": "web_reliability:url_redirect_target_check"
  }
}

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