# URL Redirect Check

> URL Redirect Check is a paid API for AI agents from agent-json-reliability.onrender.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-01).

Checks whether a given URL performs a redirect and returns the redirect chain or final destination

## Facts

- Endpoint: POST https://agent-json-reliability.onrender.com/v1/url/redirect-check?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/url-redirect-check-72b68381
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_sKy63Tp0m2V3BCx4TWb8N

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 url-redirect-check-72b68381 -d '<json body>'
```

Example prompt: Can you check if this URL redirects and tell me where it ends up? https://bit.ly/somelink

## When to prefer this

Use this endpoint when you need to programmatically verify whether a URL performs a redirect before using it in an agent pipeline, campaign, or security check. Prefer this over manual inspection when automating link audits or validating URLs at scale within a JSON-agent workflow.

## Known failure modes

- URL is unreachable or times out — returns error or ok:false
- Malformed URL input — validation error returned
- Redirect chain is too long or circular — may return partial chain or error
- Target server blocks HEAD/GET requests used for redirect detection

## How this service works

Deterministic JSON repair and JSON Schema validation for AI agents. Free MCP, inspect, validate, repair. Paid POST /v1/json/reliable 0.003 USDC via x402 on Base.

## Output

Returns a JSON object with an 'ok' boolean indicating success, along with details about whether the URL redirects and the final destination or redirect chain encountered.

## Response schema (JSON Schema)

```json
{
 "example": {
  "ok": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/url-redirect-check-72b68381/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agent-json-reliability.onrender.com](https://www.zero.xyz/host/agent-json-reliability.onrender.com/llms.txt)