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Duo Data Utilities – Radix/Base Converter
x402
Duo Data Utilities – Radix/Base Converter is a paid API for AI agents from api.duoleads.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-02).
Converts an integer from any numeric base (2–36) to any other base with arbitrary precision, returning the result, decimal value, bit length, and digit count.
Price / call$0.05
Success—
StatusUnknown
How this service works
Convert an integer between any two numeric bases from 2 to 36, with arbitrary precision so values far beyond 2^53 are exact. Accepts an optional sign and common prefixes (0x, 0b, 0o), validates every digit against the source base, and returns the value in the target base, in decimal, and as its bit length and digit count.
Output
A JSON object containing: the converted value in the target base (`result`), the decimal representation (`decimal`), the source base (`from`), the target base (`to`), bit length (`bit_length`), digit count (`digits`), whether the value is negative (`negative`), and an `exact` flag confirming arbitrary-precision accuracy. Also includes metadata: request ID, computation timestamp, price, and a disclaimer.
Example use cases
Hex to binary for bitfield analysis
“Take the hex value 0x1A3F and convert it to binary so I can see which bits are set.”
Large integer base conversion for crypto tooling
“I have this huge decimal number 123456789012345678901234567890 — convert it to base 16 and tell me how many bits it is.”
Base 36 short code to decimal lookup
“Convert this base-36 encoded ID 'Z4K2X' to decimal so I can use it as a numeric key in my database.”
Technical details
Endpoint
GEThttps://api.duoleads.com/v1/num/radix?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need exact, arbitrary-precision base conversion beyond JavaScript's 2^53 integer limit, support for any base from 2 to 36, prefix auto-detection (0x, 0b, 0o), and validated digit checking. Prefer it over client-side parseInt/toString when dealing with large integers, cryptographic values, or when you need bit-length metadata alongside the conversion result.
Side effects
- Invalid digit for the specified source base — returns an error indicating which character failed validation
- Source or target base out of range (must be 2–36) — returns a validation error
- Value string exceeds maximum length of 1024 characters
- Unrecognized prefix when using auto-detect mode — returns a parsing error
- Missing required `value` query parameter — returns a 400-level error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"data": {
"to": 10,
"from": 16,
"exact": true,
"digits": 10,
"result": "3735928559",
"decimal": "3735928559",
"negative": false,
"bit_length": 32
},
"meta": {
"price_usd": "0.05",
"disclaimer": "Factual output of a deterministic computation over public data. Provided as is, with no warranty of accuracy, completeness or availability. Not investment, financial, legal, tax, medical or any other professional advice, and not a recommendation. Verify before relying on it. Terms: https://api.duoleads.com/terms",
"request_id": "01K6B7Q4ZC8H3F2M9WXR5TYN0D",
"computed_at": "2026-09-28T12:00:00.000Z",
"deterministic": true
},
"route": "/v1/num/radix",
"version": "1.0.0"
}
}Tags
x402
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