x402 challenge lint
x402 challenge lint: a verdict, a 0 to 100 score and 32 checks, paywall bypass included. Use when you need to answer: Is the payment challenge of this x402 endpoint well formed, and is its paywall closed to unpaid requests? Never pays. An unreachable endpoint answers 503 and a refused URL 400, neither charged.
Answeringour last check, 2026-11-04
3 of 3checks answered this week
286 msmedian answer time
$0.025listed price per call
$0.025price 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://x402.ochinimus.app/api/x402-lint
| Category | Code and developer |
|---|---|
| Provider host | x402.ochinimus.app |
| Networks | eip155:10, eip155:137, eip155:143, eip155:42161, eip155:43114, eip155:5042, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | batch-settlement, exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-11-04 | valid payment request | 402 | $0.025 | 286 ms |
| 2026-11-03 | valid payment request | 402 | $0.025 | 281 ms |
| 2026-11-02 | valid payment request | 402 | $0.025 | 323 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"url": "https://x402.ochinimus.app/api/time"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"method": {
"description": "HTTP method to check, default GET (a POST is sent with an empty body)",
"enum": [
"GET",
"POST"
],
"type": "string"
},
"url": {
"description": "the x402 endpoint to check, URL-encoded: http or https, a public host, port 80 or 443",
"type": "string"
}
},
"required": [
"url"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"data": {
"properties": {
"checked_at": {
"type": "string"
},
"checks": {
"type": "array"
},
"networks": {
"type": "array"
},
"raw": {
"type": "object"
},
"score": {
"type": "number"
},
"url": {
"type": "string"
},
"verdict": {
"type": "string"
},
"version": {
"type": "number"
}
},
"type": "object"
},
"paid": {
"type": "boolean"
},
"tool": {
"type": "string"
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}