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Redirect Contract Verifier
x402
Redirect Contract Verifier is a paid API for AI agents from x402.plutonus.tech, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).
Follows HTTP redirects from a source URL and verifies whether the final destination matches an expected target URL, returning a deterministic verdict and reason code.
Price / call$0.003
Success—
StatusUnknown
How this service works
Safely follow bounded public HTTP redirects and compare the final URL with the expected target; return a deterministic verdict and reason code.
Output
Returns a deterministic verdict (match or mismatch) and a reason code explaining why the redirect chain resolved the way it did, along with the final URL that was reached after following all bounded HTTP redirects.
Example use cases
Affiliate link integrity check
“I need to verify that this affiliate link https://go.partner.com/deal42 actually ends up at https://shop.example.com/product/42 — can you confirm it redirects correctly?”
Marketing campaign URL audit
“Can you check that our campaign link https://email.brand.com/campaign/summer leads to https://brand.com/sale/summer-2024 and hasn't been misconfigured?”
Phishing and redirect tamper detection
“Someone sent me a link https://t.co/xyzRedirect and claims it goes to https://bank.com/login — can you verify if the redirect actually ends at that URL or somewhere else?”
Technical details
Endpoint
POSThttps://x402.plutonus.tech/v1/redirect-contract-verifierWhen to prefer
Use this endpoint when you need to programmatically verify that a URL redirect chain ends at a specific known destination — especially for link integrity audits, affiliate link validation, phishing detection, or confirming marketing URLs haven't been misconfigured. Prefer this over manual browser checks or generic HTTP clients when you need a deterministic, structured verdict with a reason code rather than raw redirect history.
Side effects
- Source URL is unreachable or returns a non-redirect response — returns an error or non-match verdict
- Redirect chain exceeds the allowed hop limit — returns a bounded-limit reason code
- Source URL resolves to a private or non-public IP address — blocked for safety
- Malformed URL inputs cause a validation error before any request is made
- Target URL comparison fails due to trailing slash or case sensitivity differences
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| source_url | string | |
| expected_target_url | string |
Tags
x402
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