Compare two lockfiles and report what a manifest diff cannot see
Compare two lockfiles and report what a manifest diff cannot see. Reports newly installed transitive packages, resolved version moves with breaking risk, a registry that changed, and the most serious finding available here: the same version with a different integrity hash, meaning the artifact behind a version that was supposed to be immutable is not the one that was there before.
Answeringour last check, 2026-10-04
1 of 1checks answered this week
2476 msmedian answer time
$0.18listed price per call
$0.18price 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://api.zfinia.com/x402/v1/lockfile-change-report
| Category | Company and compliance |
|---|---|
| Provider host | api.zfinia.com |
| Networks | eip155:8453 |
| Payment schemes | 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 |
|---|---|---|---|---|
| 2026-10-04 | valid payment request | 402 | $0.18 | 2476 ms |
Example input (from the provider)
{
"body": {
"after": {
"lockfileVersion": 3,
"packages": {
"": {
"name": "orders-api",
"version": "2.2.0"
},
"node_modules/cookie": {
"integrity": "sha512-TAMPERED",
"resolved": "https://registry.npmjs.org/cookie/-/cookie-0.5.0.tgz",
"version": "0.5.0"
},
"node_modules/express": {
"integrity": "sha512-DDDD",
"resolved": "https://registry.npmjs.org/express/-/express-5.0.0.tgz",
"version": "5.0.0"
},
"node_modules/router": {
"integrity": "sha512-EEEE",
"resolved": "https://packages.internal.example/router/-/router-2.0.0.tgz",
"version": "2.0.0"
}
}
},
"before": {
"lockfileVersion": 3,
"packages": {
"": {
"name": "orders-api",
"version": "2.1.0"
},
"node_modules/cookie": {
"integrity": "sha512-BBBB",
"resolved": "https://registry.npmjs.org/cookie/-/cookie-0.5.0.tgz",
"version": "0.5.0"
},
"node_modules/dropped": {
"integrity": "sha512-CCCC",
"resolved": "https://registry.npmjs.org/dropped/-/dropped-1.0.0.tgz",
"version": "1.0.0"
},
"node_modules/express": {
"integrity": "sha512-AAAA",
"resolved": "https://registry.npmjs.org/express/-/express-4.18.2.tgz",
"version": "4.18.2"
}
}
},
"expected_registry": "https://registry.npmjs.org/"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"after": {
"type": "object"
},
"before": {
"type": "object"
},
"expected_registry": {
"maxLength": 256,
"type": "string"
}
},
"required": [
"before",
"after"
],
"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": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}