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Sindri URL Encoder
x402
Sindri URL Encoder is a paid API for AI agents from ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).
Percent-encodes text for safe use in a URL query string or path segment, correctly handling reserved characters that LLMs commonly mishandle.
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 a percent-encoded version of the input text, where all reserved and non-safe characters (spaces, &, ?, /, =, @, etc.) are replaced with their %XX hexadecimal equivalents, making the string safe for use in URL query strings or path segments.
Example use cases
Encode user search query for API call
“I need to URL-encode the search phrase 'café au lait & croissants' so I can safely append it as a query parameter in an API request URL.”
Sanitize path segment with special characters
“Can you percent-encode 'reports/Q1 2024 (final)' so I can use it as a path segment in a REST endpoint without breaking the URL?”
Encode email address for redirect URL
“I need to URL-encode 'user@example.com?ref=campaign&source=email' so it's safe to embed as a value inside another URL's query string.”
Technical details
Endpoint
POSThttps://ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/urlEncode?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need reliable, standards-compliant percent-encoding of arbitrary text for URL use, especially when you can't trust an LLM to correctly handle edge cases like reserved characters (+, &, =, ?, /, #, @, %) or non-ASCII characters that require UTF-8 byte encoding. Ideal for agent workflows that dynamically build URLs from user-supplied input.
Side effects
- Missing or empty 'text' field in request body — likely returns 400 or an error message
- Network timeout or Lambda cold-start delay on first invocation
- Payment failure if USDC balance is insufficient for the $0.01 per-call fee
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | The text to URL-encode. |
Tags
x402
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