Base64 in both directions, including the URL-safe alphabet, with UTF-8 handled p
Base64 in both directions, including the URL-safe alphabet, with UTF-8 handled properly. Encoding is what carries payloads through headers and JSON, and x402 itself rides on it.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
399 msmedian answer time
$0.0025listed price per call
$0.0025price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://flat-rate-llm.kikoribera03.workers.dev/v1/util/base64
| Category | Everything else |
|---|---|
| Provider host | flat-rate-llm.kikoribera03.workers.dev |
| Networks | eip155:137, eip155:42161, eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.0025 | 399 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"input": "hello world",
"mode": "encode"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"input": {
"description": "The text or base64 to convert.",
"type": "string"
},
"mode": {
"description": "encode | decode. Defaults to encode.",
"type": "string"
},
"urlSafe": {
"description": "Use the URL-safe alphabet (-_ instead of +/).",
"type": "boolean"
}
},
"required": [
"input"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}