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ONE Engine Hex Encode
x402
ONE Engine Hex Encode is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-02).
Converts a plain text string into its hexadecimal representation
Price / call$0.001
Success—
StatusUnknown
How this service works
Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.
Output
A JSON object containing a single field 'hex' with the hexadecimal-encoded representation of the input text string (e.g. {'hex': '4f4e45'}).
Example use cases
Encoding a secret key string
“Take the text 'MySecretKey123' and give me its hexadecimal encoding so I can use it in a low-level protocol.”
Preparing payload for blockchain transaction
“I need to embed the message 'transfer approved' into a smart contract call — can you convert that text to hex for me?”
Debugging binary protocol data
“Convert the string 'ONE ENGINE' to hex so I can verify it matches the expected byte sequence in my network packet inspector.”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v1/hex/encode?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, pay-per-call hex encoding of a plain text string without setting up any local library or dependency. At $0.001 USDC per call via x402 on Base, it's ideal for autonomous agents that occasionally need hex encoding as part of a larger workflow and prefer a lightweight API call over bundling encoding logic themselves.
Side effects
- Missing or empty 'text' field returns an error response
- Non-UTF-8 or malformed input may produce unexpected encoding
- Network timeout on the Cloudflare Workers edge
- Payment failure via x402 prevents the call from completing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string |
Output
Schema · Response
{
"type": "json",
"example": {
"hex": "4f4e45"
}
}Tags
x402
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