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URL Encoder API (x402.outpimp.com)
x402
URL Encoder 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).
Percent-encodes a text string for safe use in a URL query string or path segment, handling reserved-character rules correctly.
Price / call$0.01
Success—
StatusUnknown
How this service works
URL encoder API. Percent-encodes text for safe use in a URL query string or path segment, handling reserved-character rules LLMs often get wrong by hand.
Output
Returns the percent-encoded version of the input text, with all reserved and non-ASCII characters replaced by their %XX hex escape sequences, making the string safe for use in URL query strings or path segments. Returns HTTP 400 if the text field is missing or not a string.
Example use cases
Encoding search query for HTTP request
“I need to URL-encode this search query before I append it to a GET request: 'price < $100 & brand=café del sol' — can you encode it for me?”
Making user input safe for URL path
“Take this user-submitted text and percent-encode it so I can safely embed it in a URL path segment: 'John's résumé (2024) #final'.”
Encoding OAuth redirect parameter
“I need to include this callback URL as a query parameter value in another URL — can you percent-encode it? The text is 'https://myapp.com/callback?state=active&session=1'.”
Technical details
Endpoint
POSThttps://x402.outpimp.com/urlEncodeWhen to prefer
Prefer this endpoint when you need reliable, standards-compliant percent-encoding of arbitrary text for inclusion in a URL, especially when LLM-generated encoding may be unreliable (e.g. edge cases with reserved characters like '/', '?', '&', '#', '+', or non-ASCII unicode). This is a fast, deterministic utility call that avoids token burn and encoding errors.
Side effects
- Missing 'text' field in request body — returns 400
- 'text' field is not a string (e.g. number or null) — returns 400
- Network timeout or service unavailability — returns 5xx
- Empty string input — may return empty string or 400 depending on server behavior
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | The text to URL-encode. |
Tags
x402
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