# URL Decoder API (x402.outpimp.com)

> URL Decoder API (x402.outpimp.com) is a paid API for AI agents from x402.outpimp.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Decodes percent-encoded (URL-encoded) text back to its original plain text representation.

## Facts

- Endpoint: POST https://x402.outpimp.com/urlDecode
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/url-decoder-api-x402-outpimp-com-a84982c5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_e5ZUkSD2G24gG7YzxlHv6

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-decoder-api-x402-outpimp-com-a84982c5 -d '<json body>'
```

Example prompt: Can you decode this percent-encoded string back to plain text: 'Hello%20World%21%20%2F%20foo%3Dbar'?

## When to prefer this

Use this endpoint when you need to programmatically decode percent-encoded (URL-encoded) strings without burning LLM tokens on character-by-character decoding. Particularly useful when processing URL query parameters, path segments, webhook payloads, or scraped web data that arrives in percent-encoded form. Prefer this over doing it in-context when correctness is critical (e.g. multi-byte UTF-8 sequences like emoji or non-ASCII characters encoded as %E2%82%AC).

## Known failure modes

- 400 error if the 'text' field is missing from the request body
- 400 error if 'text' is not a string type
- 400 error if the input contains malformed or invalid percent-encoding sequences (e.g. a lone % not followed by two hex digits)

## How this service works

URL decoder API. Decodes percent-encoded URL text back to plain text.

## Output

Returns the decoded plain-text string corresponding to the percent-encoded input. If the input is missing, not a string, or contains malformed percent-encoding sequences, the API returns a 400 error.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "description": "The percent-encoded text to decode."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/url-decoder-api-x402-outpimp-com-a84982c5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.outpimp.com](https://www.zero.xyz/host/x402.outpimp.com/llms.txt)