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Keyronne Encode/Decode API
x402
Keyronne Encode/Decode API is a paid API for AI agents from keyronne.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Encodes and decodes text across base64, base64url, hex, URL-encoding, and HTML entities (UTF-8 safe), and decodes JWTs into readable header/payload with human-readable timestamps.
Price / call$0.001
Success—
StatusUnknown
How this service works
Encode and decode text across base64, base64url, hex, URL-encoding, and HTML entities (UTF-8 safe). Also decodes (does not verify) JWTs into header and payload with human-readable exp/iat times. Built for wrangling tokens, data URIs, and escaped strings. POST a JSON body like: {"text":"hello world","codec":"base64","operation":"encode"}
Output
Returns the encoded or decoded string for the given codec (base64, base64url, hex, url, html). For JWT mode, returns the decoded header object, payload object, and human-readable exp and iat timestamps without performing signature verification.
Example use cases
Example prompt
“Decode this JWT for me so I can see what's in the header and payload, including the expiration time in a readable format: eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c”
Technical details
Endpoint
POSThttps://keyronne.com/api/encodeWhen to prefer
Use this endpoint when you need reliable, UTF-8-safe text encoding or decoding across base64, base64url, hex, URL, or HTML codecs, or when you need to quickly inspect a JWT's contents (header, payload, expiry) without signature verification. Prefer this over rolling your own codec logic in an LLM context, where encoding edge cases are easily mishandled.
Side effects
- Invalid base64 input returns a decode error
- Unsupported codec value returns a 400 validation error
- Malformed JWT string returns a parsing error
- Missing required fields (text or jwt) returns a 400 error
- Invalid JSON body returns a 400 parse error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| jwt | string | Alternative mode: decode this JWT (no signature verification). |
| text | string | The text to encode or decode. |
| codec | string | |
| operation | string |
Tags
x402
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