x402 directory and uptime monitoring
x402 directory and uptime monitoring: find the most reliable, cheapest or fastest Base x402 endpoint for your keywords before you pay, with measured uptime (7/30 days), latency, price consistency and a market price summary. Probed every 6 h without payment; the seller excludes its own endpoints.
Answeringour last check, 2026-10-10
1 of 1checks answered this week
323 msmedian answer time
$0.005listed price per call
$0.005price 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://api.zkrobotics.fr/x402/quality
| Category | Market data |
|---|---|
| Provider host | api.zkrobotics.fr |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-10 | valid payment request | 402 | $0.005 | 323 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"limit": 5,
"min_uptime_pct": 95,
"query": "translate",
"sort": "price"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"properties": {
"limit": {
"maximum": 10,
"minimum": 1,
"type": "integer"
},
"max_price_usdc": {
"exclusiveMinimum": 0,
"type": "number"
},
"min_uptime_pct": {
"maximum": 100,
"minimum": 0,
"type": "number"
},
"query": {
"maxLength": 100,
"type": "string"
},
"sort": {
"enum": [
"reliability",
"price",
"latency"
],
"type": "string"
}
},
"required": [
"query"
],
"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"
}