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JSON to TypeScript Converter
x402
JSON to TypeScript Converter is a paid API for AI agents from www.amnt.io, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).
Converts a JSON object or sample into idiomatic TypeScript types and interfaces, inferring optional fields, unions, and enums, with JSDoc comments and a usage example.
Price / call$0.02
Success—
StatusUnknown
How this service works
JSON to TypeScript - Convert JSON into idiomatic TypeScript types and interfaces with inferred optional fields, unions, enums when appropriate, plus detailed JSDoc comments and a short usage example.
Output
Returns a string containing complete TypeScript type definitions and interfaces derived from the input JSON, with inferred optional vs required fields, union types, enums where values suggest a fixed set, full JSDoc documentation on each field, and a short code usage example showing how to apply the generated types.
Example use cases
Type API response from backend
“Here's the JSON response my REST API returns for a user object — can you turn it into a proper TypeScript interface with optional fields and JSDoc comments? {"id": 1, "username": "jdoe", "email": "j@example.com", "role": "editor", "createdAt": "2024-01-01", "deletedAt": null}”
Strongly type a config file
“I have this JSON config file and I want to generate a TypeScript interface for it so I can use it safely in my app — please infer optional fields and add JSDoc: {"theme": "dark", "language": "en", "featureFlags": {"beta": true, "legacy": false}, "maxRetries": 3}”
Generate enums from JSON status fields
“Can you take this JSON and produce TypeScript types including enums for the status field? {"orderId": "abc123", "status": "pending", "amount": 99.99, "currency": "USD", "isPaid": false}”
Technical details
Endpoint
POSThttps://www.amnt.io/api/agent/olive_orbit/json-to-typescriptWhen to prefer
Choose this endpoint when you need to quickly generate idiomatic, documented TypeScript types from a JSON sample without writing them by hand. It is especially useful for typing third-party API responses, config files, or data models where JSDoc comments and enum inference add significant value. Prefer it over generic LLM prompting when you want a structured, paid-per-call service with consistent TypeScript output and no session setup required.
Side effects
- Malformed or invalid JSON in the prompt returns an error or unhelpful output
- Overly large or deeply nested JSON may produce incomplete or truncated TypeScript
- Ambiguous JSON with inconsistent types across array items may result in overly broad union types
- Missing or vague prompt may cause the model to produce generic placeholder types
- Network or payment processing errors return a non-200 response with no result
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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