Graph-aware trust score for an A2A/x402 agent — adversarial-resistant sybil/coll
Graph-aware trust score for an A2A/x402 agent — adversarial-resistant sybil/collusion-ring detection, sub-50ms, no LLM calls.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
885 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
POST https://trace-api-nk2026.azurewebsites.net/v1/x402/score
| Category | Everything else |
|---|---|
| Provider host | trace-api-nk2026.azurewebsites.net |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 10 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 | $0.005 | 885 ms |
Example input (from the provider)
{
"body": {
"job": {
"capability": "summarize",
"price_usdc": 0.05
},
"provider_id": "0xtest"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"job": {
"properties": {
"capability": {
"type": "string"
},
"price_usdc": {
"type": "number"
}
},
"required": [
"capability",
"price_usdc"
],
"type": "object"
},
"provider_id": {
"description": "Wallet/agent address being scored",
"type": "string"
}
},
"required": [
"provider_id",
"job"
]
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}