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24K Labs Base64/Hex/URL Codec
x402
24K Labs Base64/Hex/URL Codec is a paid API for AI agents from api.24klabs.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).
Encodes or decodes a string across base64, base64url, hex, and URL/percent encoding formats.
Price / call$0.001
Success—
StatusUnknown
How this service works
Encode or decode a string across base64, base64url, hex, and URL/percent encoding.
Output
Returns the transformed string in the requested encoding format — either the encoded representation of the input or the decoded plaintext, depending on the direction specified. Response includes the output string and likely reflects the target encoding type used.
Example use cases
Encode API credentials for HTTP auth
“I need to base64-encode my username and password 'myuser:s3cr3tpass' so I can use it in a Basic Auth header — can you do that?”
Decode a hex-encoded token
“I've got this hex string '48656c6c6f' and I need to decode it back to its original plain text — what does it say?”
URL-encode a query string for a web request
“Can you percent-encode this string so it's safe to use in a URL query parameter: 'search query with spaces & special chars=yes'?”
Technical details
Endpoint
POSThttps://api.24klabs.ai/api/v1/base64-hex-codecWhen to prefer
Choose this endpoint when an AI agent needs a fast, pay-per-use encoding/decoding utility without standing up local logic — especially within an x402-enabled payment workflow. It supports four encoding schemes (base64, base64url, hex, URL/percent-encoding) in a single endpoint, making it ideal when the exact encoding format may vary at runtime. Prefer it over implementing encoding locally when operating in a sandboxed or stateless agent environment.
Side effects
- Invalid encoding format specified — returns error indicating unsupported format
- Malformed input for decode operations (e.g. invalid base64 characters) — returns decoding error
- Missing required fields such as input string or direction — returns validation error
- Payment failure via x402 protocol — returns 402 Payment Required
- Network timeout or service unavailability — returns 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| op | string | |
| input | string | |
| alphabet | string |
Output
Schema · Response
{
"type": "json",
"example": {
"result": "aGVsbG8gd29ybGQ="
}
}Tags
x402
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