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1gateway Package Vulnerability Check
x402
1gateway Package Vulnerability Check is a paid API for AI agents from 1gateway.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-30).
Checks whether an exact package version is vulnerable by querying OSV.dev, returning severity counts and advisory details (GHSA/CVE IDs, CVSS, CWEs, fixed versions).
Price / call$0.003
Success—
StatusUnknown
How this service works
Use when an agent must check a dependency before installing or upgrading: is this exact package version vulnerable? Input: package, ecosystem (npm, PyPI, Go, Maven, crates.io, NuGet, RubyGems, Packagist...), version. Output: JSON vulnerable yes/no, counts by severity, advisories (GHSA/CVE id, summary, severity, CVSS, CWE, fixed versions, links). Data: OSV.dev. Example: ?package=lodash&ecosystem=npm&version=4.17.15
Output
A JSON object with: a `vulnerable` boolean, total `count` of matching advisories, `bySeverity` breakdown (critical/high/moderate/low/unknown), and a `vulnerabilities` array where each item includes GHSA/CVE IDs, summary, severity, CVSS vector, CWE list, fixed versions, and advisory URLs. Also includes the package echo (name, version, ecosystem) and an OSV.dev attribution string.
Example use cases
Pre-install security gate for npm packages
“I'm about to add express 4.18.1 from npm to my project — can you check if that exact version has any known vulnerabilities and tell me the severity counts and whether there's a safe version to use instead?”
CI/CD pipeline dependency scan
“We're running a deployment pipeline and need to verify that PyPI package requests version 2.28.0 has no known CVEs or security advisories before we ship — can you check OSV.dev for us?”
Audit legacy Go module for security issues
“We have a legacy service pinned to Go module golang.org/x/crypto version 0.0.0-20210711020723 — can you check if that version has any known vulnerabilities, what their CVSS scores are, and what version we should upgrade to?”
Technical details
Endpoint
GEThttps://1gateway.dev/v1/dev/vulnerabilities?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, single-version vulnerability check against OSV.dev data without running a full dependency scanner locally. Ideal for agentic workflows that gate installation, deployment, or PR merges on security status. Covers a broader ecosystem range than GitHub's native Dependabot alerts for non-GitHub-hosted projects, and returns structured JSON suitable for downstream decision-making without parsing HTML advisories.
Side effects
- Unknown ecosystem value returns validation error — must use supported enum values
- Package not found in the specified ecosystem returns empty vulnerability list (not an error)
- Exact version string mismatch (e.g. using 'v1.2.3' vs '1.2.3') may return no results
- Result may be truncated for packages with very large numbers of advisories (truncated: true)
- Network or OSV.dev upstream downtime returns a gateway/service error
- Payment failure (x402) if USDC balance insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"note": "Advisories that list this exact version as affected (withdrawn ones removed). fixedIn = first fixed version per affected range; pick the lowest one above your …",
"count": 6,
"package": {
"name": "lodash",
"version": "4.17.15",
"ecosystem": "npm"
},
"truncated": false,
"bySeverity": {
"low": 0,
"high": 3,
"unknown": 0,
"critical": 0,
"moderate": 3
},
"vulnerable": true,
"attribution": "Vulnerability data from OSV.dev (https://osv.dev), CC BY 4.0, aggregating GitHub Advisory Database, PyPA, Go, RustSec and other sources.",
"vulnerabilities": [
{
"id": "GHSA-r5fr-rjxr-66jc",
"cve": "CVE-2026-4800",
"cwe": [
"CWE-94"
],
"url": "https://osv.dev/vulnerability/GHSA-r5fr-rjxr-66jc",
"cvss": {
"type": "CVSS_V3",
"vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
"aliases": [
"CVE-2026-4800"
],
"fixedIn": [
"4.18.0"
],
"summary": "lodash vulnerable to Code Injection via `_.template` imports key names",
"advisory": "https://nvd.nist.gov/vuln/detail/CVE-2026-4800",
"modified": "2026-10-17T02:56:15.633068434Z",
"severity": "HIGH",
"published": "2026-04-01T23:51:12Z"
}
],
"fixedVersionsMentioned": [
"4.18.0"
]
}
}Tags
x402
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