One pkgproof package verification
One pkgproof package verification
Answers HTTP 200 without x402 payment termsour last check, 2026-09-24
0 of 1checks answered this week
n/amedian answer time
$0.05listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://x402.pkgproof.net/v1/verify
| Category | Everything else |
|---|---|
| Provider host | x402.pkgproof.net |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 8 from 3 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | no x402 terms | 200 | 1707 ms |
Example input (from the provider)
{
"body": {
"ecosystem": "npm",
"name": "left-pad",
"version": "1.3.0"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"ecosystem": {
"description": "npm is the only ecosystem this service verifies.",
"enum": [
"npm"
],
"type": "string"
},
"name": {
"description": "Package name. ASCII only; homoglyph and Unicode-confusable names are refused before any upstream call.",
"type": "string"
},
"version": {
"description": "Optional. Omit to verify the package rather than one release.",
"type": "string"
}
},
"required": [
"ecosystem",
"name"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"checked_at": {
"description": "When the verification ran, which is not always when it was requested: a reused result carries its original timestamp.",
"format": "date-time",
"type": "string"
},
"ecosystem": {
"type": "string"
},
"name": {
"type": "string"
},
"reasons": {
"description": "Evidence, one entry per finding. Branch on `code`, not on `detail`.",
"items": {
"properties": {
"code": {
"type": "string"
},
"data": {
"type": "object"
},
"detail": {
"type": "string"
},
"kind": {
"description": "fact is established; heuristic is inference and never convicts on its own.",
"enum": [
"fact",
"heuristic"
],
"type": "string"
},
"source": {
"type": "string"
},
"verdict": {
"type": "string"
}
},
"required": [
"verdict",
"code",
"kind",
"source",
"detail"
],
"type": "object"
},
"type": "array"
},
"sources": {
"description": "The upstream each check consulted, by name.",
"type": "object"
},
"verdict": {
"description": "Ordered worst-last. The overall verdict is the worst any check produced. block and does_not_exist are answers, not errors, and return 200.",
"enum": [
"safe",
"caution",
"block",
"does_not_exist"
],
"type": "string"
},
"version": {
"type": [
"string",
"null"
]
}
},
"required": [
"ecosystem",
"name",
"verdict",
"reasons",
"sources",
"checked_at"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}