Check dependencies before your coding agent installs them
Check dependencies before your coding agent installs them: up to 20 packages per call (npm, PyPI, crates.io, Go, Maven, NuGet, RubyGems), one decision each: ALLOW, CAUTION or BLOCK with reasons. Catches hallucinated package names that do not exist (slopsquatting), known malware (OSV malicious-package feed, including versions already removed from the registry), typosquats one typo away from a popular package, critical and high vulnerabilities in the exact version with a safe upgrade, deprecated…
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://agentsvc.io/api/v1/proxy/package-check
| Category | Company and compliance |
|---|---|
| Provider host | agentsvc.io |
| Networks | eip155:137, eip155:42161, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-18 | valid payment request | 402 | $0.004 | 915 ms |
Example input (from the provider)
{
"body": {
"packages": [
"express@4.17.1",
"reqeusts",
"pypi:requests==2.31.0",
"lodahs"
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"ecosystem": {
"description": "Default for entries without a prefix: npm, pypi, cargo, go, maven, nuget or rubygems. Default npm",
"type": "string"
},
"manifest": {
"description": "Contents of a package.json or requirements.txt (alternative to packages)",
"maxLength": 100000,
"type": "string"
},
"packages": {
"description": "Strings like \"express@4.17.1\", \"pypi:requests==2.31.0\", \"go:github.com/gin-gonic/gin\", \"maven:org.apache.logging.log4j:log4j-core:2.14.1\", or {name, ecosystem, version}",
"items": {
"anyOf": [
{
"maxLength": 300,
"type": "string"
},
{
"properties": {
"ecosystem": {
"type": "string"
},
"name": {
"type": "string"
},
"version": {
"description": "Exact version or npm range; default latest",
"type": "string"
}
},
"required": [
"name"
],
"type": "object"
}
]
},
"maxItems": 20,
"minItems": 1,
"type": "array"
}
},
"required": []
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"data": {
"properties": {
"checked_at": {
"type": "string"
},
"packages": {
"type": "array"
},
"sources": {
"type": "string"
},
"summary": {
"type": "object"
},
"verdict": {
"type": "string"
}
},
"type": "object"
},
"success": {
"type": "boolean"
}
},
"required": [
"success",
"data"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}