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PennyRail HTML Entity Escaper
x402
PennyRail HTML Entity Escaper is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Escapes special characters in text to safe HTML entities (e.g. converts < to <, & to &)
Price / call$0.001
Success—
StatusUnknown
How this service works
Machine-readable settlement service
Output
Returns an object containing the escaped version of the input text with all HTML-reserved characters (< > & " ') replaced by their corresponding named or numeric HTML entities, making the string safe for literal injection into HTML documents.
Example use cases
Sanitize user-generated blog content
“I have a user comment that contains angle brackets and ampersands — can you escape it into HTML entities so it's safe to render on the page? The text is: 'Tom & Jerry <the show> is "great"'.”
Prevent XSS in email template renderer
“Before I inject this user-supplied subject line into my HTML email template, escape all HTML special characters for me: '<script>alert(1)</script> — 50% off today!'”
Encode code snippets for display
“I want to show this code example literally in my web page without the browser interpreting the tags — please convert '<div class="box"> & </div>' into HTML entities.”
Technical details
Endpoint
POSThttps://pennyrail.vercel.app/api/p/nano/text.html-entities--escape-htmlWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-call microservice to HTML-escape arbitrary text strings without spinning up a library or dependency. Particularly useful in agent pipelines that need to safely render user-generated or external content inside HTML, or when building serverless workflows where a stateless transformation call is preferable to bundling an escaping library.
Side effects
- Missing or empty 'input' object returns a validation error
- Non-string or unexpected input type may return a generic error response
- Payment failure (x402) results in 402 Payment Required before processing
- Malformed request body returns 400-class error
- Very large input strings may hit payload size limits
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
Schema · Response
{
"type": "object",
"additionalProperties": true
}Tags
x402
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