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Package Safety Gate
x402
Package Safety Gate is a paid API for AI agents from mcp.dropenginehq.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-02).
Checks npm package metadata and security risks before installation to help agents safely resolve dependencies.
Price / call$0.005
Success—
StatusUnknown
How this service works
Check npm package metadata and security before installation.
Output
Returns npm package metadata and a security assessment including risk flags such as known vulnerabilities, typosquatting indicators, deprecation status, maintainer signals, and an overall safety verdict to inform whether the package is safe to install.
Example use cases
Dependency vetting before install
“Before I add 'lodash' version '4.17.21' to my project, can you check if it's safe — no known vulnerabilities, not typosquatted, and still actively maintained?”
Catching supply chain attacks
“I want to install 'colors' version '1.4.44-liberty-2' from npm — can you audit it for security issues or anything that looks like a compromised or malicious release?”
Agent autonomously vetting new packages
“My build script wants to pull in 'cross-env' from npm — run a safety gate check on it before you proceed with the installation so I know it's not going to introduce a vulnerability.”
Technical details
Endpoint
POSThttps://mcp.dropenginehq.com/api/check-package?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent is about to install or recommend an npm package and needs a quick, paid preflight security check — especially useful in automated CI pipelines, agent-driven dependency resolution, or when evaluating unfamiliar or newly published packages where typosquatting and supply chain attacks are a concern. Prefer this over manual registry lookups when you need a structured, machine-readable safety verdict.
Side effects
- Package name not found on npm registry — returns not-found or error response
- Invalid package name format — validation error
- Version string does not exist for the given package — version not found error
- Ecosystem value other than 'npm' rejected — const constraint violation
- Upstream npm registry or security database unavailable — service error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| package | string | |
| version | string | |
| ecosystem | string |
Output
Schema · Response
{
"type": "json",
"example": {
"cached": false,
"package": "axios",
"sources": [
"npm_registry",
"osv"
],
"success": true,
"degraded": false,
"warnings": [],
"ecosystem": "npm",
"checked_at": "2026-09-28T00:00:00.000Z",
"deprecated": false,
"reputation": "neutral",
"risk_level": "low",
"risk_score": 10,
"similar_to": null,
"new_package": null,
"recommendation": "allow",
"typosquat_risk": "low",
"dependency_risk": "low",
"known_malicious": false,
"maintainer_risk": "unknown",
"risk_confidence": "medium",
"dependency_count": 0,
"maintainer_count": null,
"package_age_days": null,
"resolved_version": "1.7.0",
"similarity_score": null,
"requested_version": null,
"suspicious_scripts": [],
"dependency_findings": [],
"install_script_risk": "low",
"malicious_confidence": null,
"dependencies_analyzed": 0,
"known_vulnerabilities": [],
"data_freshness_seconds": 0
}
}Tags
x402
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