# Expand Short Links & Show Full Redirect Chain

> Expand Short Links & Show Full Redirect Chain is a paid API for AI agents from twin.unykorn.org, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-02).

Resolves a shortened or obfuscated URL and returns the complete redirect chain showing every hop to the final destination

## Facts

- Endpoint: POST https://twin.unykorn.org/web/unshorten?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/expand-short-links-show-full-redirect-chain-e939e311
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_18wBtTwvRJFRKLOMNhrdX

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability expand-short-links-show-full-redirect-chain-e939e311 -d '<json body>'
```

Example prompt: Can you unshorten this link for me and show me every redirect hop it goes through before reaching the final page? The URL is https://bit.ly/3xAbCdE

## When to prefer this

Use this endpoint when you need to inspect every hop in a URL's redirect chain rather than just the final destination. It is ideal for security auditing of suspicious short links, verifying affiliate or tracking redirect paths, and checking whether a link passes through any unexpected or malicious intermediate domains. Prefer this over a simple HTTP HEAD request when full hop-by-hop visibility is required.

## Known failure modes

- URL is not publicly reachable — endpoint may time out or return an error
- Input URL is malformed or missing scheme — validation error returned
- Redirect chain is too long (redirect loops) — may hit a hop limit and return partial chain
- Target server is down or returns non-standard redirects — incomplete chain
- URL requires authentication or is behind a paywall — cannot follow private redirects

## How this service works

Expand short links and show the full redirect chain — Genesis402 / UnyKorn Operator Network

## Output

The agent receives the full redirect chain for the provided URL, including each intermediate URL visited, the HTTP status codes for each hop, and the final resolved destination URL.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "params": {
   "type": "object",
   "properties": {
    "url": {
     "type": "string",
     "description": "required public URL"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "type": "url-unshorten",
  "receipt": {
   "tx_hash": "0x<64hex>",
   "amount_usd": 0.001,
   "receipt_id": "g402-<16hex>"
  },
  "sources": [
   {
    "ok": true,
    "name": "<source>"
   }
  ],
  "limitations": "<text>",
  "generated_at": "<iso time>",
  "evidence_hash": "sha256:<64hex>"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/expand-short-links-show-full-redirect-chain-e939e311/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from twin.unykorn.org](https://www.zero.xyz/host/twin.unykorn.org/llms.txt)