# URL Tracking Param Strip

> URL Tracking Param Strip is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Removes caller-selected tracking parameters from a URL while preserving all other query parameters, returning a normalized clean URL with a deterministic pass/advisory status.

## Facts

- Endpoint: POST https://api.delx.ai/api/v1/x402/url-tracking-param-strip
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/url-tracking-param-strip-d86d2e87
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap__k2Tx_k528Pk4DrGRoEp6

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-tracking-param-strip-d86d2e87 -d '<json body>'
```

Example prompt: Strip the tracking parameters utm_source, utm_medium, fbclid, and gclid from this URL: https://example.com/page?utm_source=newsletter&utm_medium=email&fbclid=abc123&product=widget — keep everything else intact.

## When to prefer this

Choose this endpoint when you need a deterministic, stateless, privacy-respecting way to strip specific known tracking parameters from a URL without relying on an external provider or hardcoded blocklist — especially useful in agentic pipelines where you control which params to remove and need a normalized URL before caching, deduplication, redirecting, or logging.

## Known failure modes

- Malformed or non-parseable URL returns an advisory status with an error finding
- Parameter names not present in the URL are silently ignored (no-op for missing params)
- URL exceeding 8192 characters may be rejected
- Array of parameters exceeding 256 items may be rejected
- Network or payment failure returns no result

## How this service works

URL Tracking Param Strip: URL Tracking Param Strip removes caller-selected tracking parameters while preserving the rest from bounded caller-supplied values without an external provider. Call URL Tracking Param Strip before accepting, caching, redirecting, or retrying a caller-supplied web response. Returns normalized web evidence, the computed finding, and an explicit pass or advisory status for URL Tracking Param Strip as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base. Firs…

## Output

Returns versioned deterministic JSON containing the normalized URL with the specified tracking parameters removed, the computed finding describing what was stripped, and an explicit pass or advisory status indicating whether the operation succeeded cleanly.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "maxLength": 8192,
   "description": "URL supplied to URL Tracking Param Strip; used only for this bounded calculation and processed in memory without retention."
  },
  "parameters": {
   "type": "array",
   "items": {
    "type": "string",
    "maxLength": 8192
   },
   "maxItems": 256,
   "description": "Parameters supplied to URL Tracking Param Strip; used only for this bounded calculation and processed in memory without retention."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": {
   "url": "https://example.com/page?id=7",
   "removed_parameters": [
    "gclid",
    "utm_medium",
    "utm_source"
   ]
  },
  "schema": "delx/util-url-tracking-param-strip/v1",
  "status": "pass",
  "evidence": {
   "retained": false,
   "input_sha256": "1ec5be09f06975009bcb06695542776362df37b3068632edd606e84bdf526181",
   "external_calls": 0
  },
  "operation": "web_reliability:url_tracking_param_strip"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/url-tracking-param-strip-d86d2e87/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.delx.ai](https://www.zero.xyz/host/api.delx.ai/llms.txt)