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Deterministic Text Transformation API
x402
Deterministic Text Transformation API is a paid API for AI agents from dtts-api-production.up.railway.app, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).
Applies one of ten deterministic string transformations (case, slug, snake, camel, dedupe, etc.) to caller-supplied text and returns the result with SHA-256 hashes for verification.
Price / call$0.002
Success—
StatusUnknown
How this service works
Pay-per-call deterministic text transformation for autonomous agents.
Output
A JSON object containing the transformed text string, the applied mode, a boolean indicating whether the output differs from the input, input and output character counts, SHA-256 hashes of both the input and output (for tamper-evident verification), a verified flag always set to true, and the service version string.
Example use cases
Slug generation for blog posts
“Take the blog post title 'My Journey Into Machine Learning: A Beginner's Guide' and convert it to a URL slug I can use in the permalink.”
Normalize messy user input whitespace
“I have this user-submitted text with inconsistent spacing and line breaks: 'Hello world this is a test'. Can you normalize the whitespace so it's clean?”
Convert variable names to camelCase
“Convert the string 'user_first_name_input_field' to camelCase so I can use it as a JavaScript variable name, and confirm whether the output actually changed.”
Technical details
Endpoint
GEThttps://dtts-api-production.up.railway.app/v1/text/transformWhen to prefer
Choose this endpoint when you need a fast, cheap, deterministic, and verifiable string transformation with cryptographic proof (SHA-256 hashes) that the output is authentic and unchanged in transit. Ideal for agents that must prove a transformation was applied correctly, generate URL-safe slugs, normalize identifiers, or standardize casing in automated pipelines where reproducibility and auditability matter. Prefer it over LLM-based reformatting when the operation must be exact, repeatable, and verifiable rather than approximate.
Side effects
- Missing required 'text' query parameter returns an error
- Missing required 'mode' query parameter returns an error
- Text exceeding 8192 UTF-8 characters is rejected
- Invalid mode value not in the allowed enum returns an error
- Empty string for text (minLength:1 violated) is rejected
- Payment failure (x402) if USDC payment is not provided or insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"mode": "slug",
"result": "hello-autonomous-agent",
"changed": true,
"verified": true,
"input_sha256": "6d14e8f3b32920bf6701c101b089667b43f107e6ae68cef64312f5cdcc281fd7",
"output_sha256": "b0a05bda604f7c3a81d4c0e2cf68fe376e0222e868cdf26aee80221272e15bf6",
"service_version": "1.0.0",
"input_characters": 28,
"output_characters": 22
}
}Tags
x402
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