ToolAssay

Check npm packages before you install or upgrade

Check npm packages before you install or upgrade. Send {"packages":["lodash@4.17.20","express"]} or a package.json (dependencies and devDependencies), up to 50 packages. Per package: latest version and publish date, whether a pinned version is behind, license, deprecation notice, weekly downloads, and known vulnerabilities from OSV with severity and first fixed version. Deterministic registry data, no LLM.

Not tested: has real-world effectsour last check, 2026-09-24
0 of 0checks answered this week
n/amedian answer time
$0.005listed 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

POST https://audit.152-53-82-29.sslip.io/v1/npm

CategoryCode and developer
Provider hostaudit.152-53-82-29.sslip.io
Networkseip155:8453
Payment schemesexact
Self-reported calls, 30 days1 from 1 payers (the provider's figure, not ours)

Our checks, last 30 days

We never call tools that send, buy, move money or file anything, not even without paying.

Example input (from the provider)

{
  "body": {
    "packages": [
      "lodash@4.17.20",
      "express",
      "left-pad"
    ]
  },
  "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": {
            "dependencies": {
              "type": "object"
            },
            "devDependencies": {
              "type": "object"
            },
            "packages": {
              "description": "npm packages as name or name@version",
              "items": {
                "type": "string"
              },
              "type": "array"
            }
          },
          "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": {
          "properties": {
            "elapsed_ms": {
              "type": "integer"
            },
            "rows": {
              "items": {
                "properties": {
                  "behind": {
                    "type": [
                      "boolean",
                      "null"
                    ]
                  },
                  "deprecated": {
                    "type": [
                      "boolean",
                      "string",
                      "null"
                    ]
                  },
                  "ecosystem": {
                    "type": "string"
                  },
                  "latest": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "latest_published": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "license": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "max_severity": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "name": {
                    "type": "string"
                  },
                  "notes": {
                    "items": {
                      "type": "string"
                    },
                    "type": "array"
                  },
                  "pinned": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "requested": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "vulnerabilities": {
                    "items": {
                      "properties": {
                        "aliases": {
                          "items": {
                            "type": "string"
                          },
                          "type": "array"
                        },
                        "fixed_in": {
                          "type": [
                            "string",
                            "null"
                          ]
                        },
                        "id": {
                          "type": "string"
                        },
                        "severity": {
                          "type": "string"
                        },
                        "summary": {
                          "type": "string"
                        }
                      },
                      "type": "object"
                    },
                    "type": "array"
                  },
                  "vulnerability_count": {
                    "type": "integer"
                  },
                  "weekly_downloads": {
                    "type": [
                      "integer",
                      "null"
                    ]
                  }
                },
                "type": "object"
              },
              "type": "array"
            },
            "sources": {
              "items": {
                "type": "string"
              },
              "type": "array"
            },
            "summary": {
              "properties": {
                "behind_latest": {
                  "type": "integer"
                },
                "deprecated": {
                  "type": "integer"
                },
                "lookup_errors": {
                  "type": "integer"
                },
                "packages": {
                  "type": "integer"
                },
                "unpinned": {
                  "type": "integer"
                },
                "with_vulnerabilities": {
                  "type": "integer"
                }
              },
              "type": "object"
            }
          },
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}

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