Check a package version on deps.dev
Check a package version on deps.dev - licences, known advisories with CVSS and CVE aliases, deprecation, provenance and source project for npm, PyPI, Maven, Go, Cargo, NuGet
Answers HTTP 400 without x402 payment termsour last check, 2026-10-18
0 of 1checks answered this week
n/amedian answer time
$0.01listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://saylorinnovations.com/api/security/deps-dev
| Category | Everything else |
|---|---|
| Provider host | saylorinnovations.com |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-18 | no x402 terms | 400 | 369 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"name": "express",
"system": "npm",
"version": "4.19.2"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
],
"type": "string"
},
"queryParams": {
"properties": {
"name": {
"description": "Package name, e.g. express, requests, org.apache.logging.log4j:log4j-core",
"type": "string"
},
"system": {
"description": "optional npm (default), pypi, maven, go, cargo or nuget",
"type": "string"
},
"version": {
"description": "optional version; defaults to the current default release",
"type": "string"
}
},
"required": [
"name"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"advisories": {
"description": "Advisories issued",
"type": "array"
},
"advisory_count": {
"description": "Number of advisory",
"type": "number"
},
"attestations": {
"type": [
"number",
"null"
]
},
"dependencies": {
"description": "Declared dependencies",
"type": [
"object",
"null"
]
},
"deprecated": {
"description": "True when the package is deprecated",
"type": [
"boolean",
"null"
]
},
"deps_dev_url": {
"description": "Deps dev URL",
"type": [
"string",
"null"
]
},
"fetched_at": {
"description": "Time the data was fetched from the source (UTC)",
"type": [
"number",
"null"
]
},
"holder_count": {
"description": "Number of holder",
"type": [
"number",
"null"
]
},
"is_default": {
"description": "True when this is default",
"type": [
"boolean",
"null"
]
},
"licenses": {
"description": "License identifiers",
"type": "array"
},
"links": {
"description": "Related links",
"type": "object"
},
"mint": {
"description": "Solana token mint address",
"type": [
"string",
"null"
]
},
"name": {
"description": "Name",
"type": "string"
},
"project": {
"type": [
"object",
"null"
]
},
"published": {
"description": "Publication date",
"type": [
"string",
"null"
]
},
"security": {
"description": "Security assessment details"
},
"security_score": {
"description": "Security score from 0 to 100",
"type": [
"number",
"null"
]
},
"slsa_provenance": {
"description": "Slsa provenance",
"type": [
"boolean",
"null"
]
},
"source": {
"description": "Data source the values come from",
"type": "string"
},
"source_project": {
"description": "Source project",
"type": [
"string",
"null"
]
},
"sources_failed": {
"description": "Data sources that did not answer; empty when all answered",
"type": [
"array",
"null"
]
},
"sources_ok": {
"description": "Data sources that answered",
"type": [
"array",
"null"
]
},
"summary": {
"description": "Short summary",
"type": [
"string",
"null"
]
},
"symbol": {
"description": "Ticker or asset symbol",
"type": [
"string",
"null"
]
},
"system": {
"description": "Package system",
"type": "string"
},
"token_age_days": {
"description": "Token age in days",
"type": [
"number",
"null"
]
},
"version": {
"description": "Version identifier",
"type": "string"
},
"watchdog_score": {
"description": "Overall score from 0 to 100",
"type": [
"number",
"null"
]
}
},
"required": [
"system",
"name",
"version"
],
"type": "object"