One pkgproof package verification
One pkgproof package verification
50000 (raw units)
price
8
calls / 30d
3
unique payers
2026-08-26
updated
Provider
x402.pkgproof.net · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0xB1fe0fd90C16800C3D5e811c6f07972dE9d2b98E",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "50000",
"maxTimeoutSeconds": 60
}
]Output schema
{
"bazaar": {
"info": {
"input": {
"body": {
"ecosystem": "npm",
"name": "left-pad",
"version": "1.3.0"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"checked_at": "2026-08-26T12:00:00Z",
"ecosystem": "npm",
"name": "left-pad",
"reasons": [
{
"code": "package_exists",
"detail": "left-pad 1.3.0 is published on the npm registry.",
"kind": "fact",
"source": "npm registry",
"verdict": "safe"
},
{
"code": "no_known_advisories",
"detail": "OSV lists no advisories for this version.",
"kind": "fact",
"source": "osv.dev",
"verdict": "safe"
}
],
"sources": {
"npm registry": "https://registry.npmjs.org",
"osv.dev": "https://api.osv.dev"
},
"verdict": "safe",
"version": "1.3.0"
},
"type": "json"
}
},
"schema": {
"$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"
}
}
}Use it
curl
curl "https://x402.pkgproof.net/v1/verify" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://x402.pkgproof.net/v1/verify");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://x402.pkgproof.net/v1/verify")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/5100.json, and this resource appears in /discovery/resources and /discovery/search.