NuGet Package Registration Overview

nuget/package-registration

The NuGet.org registration of one package: how many versions it has, the page ranges that hold their full detail, and, for packages of up to 127 versions, one line per version with its publish date, listed flag, deprecation flag and known vulnerability count with the highest severity code. Data from the NuGet.org public API, https://api.nuget.org, reduced to the fields listed and served by Eden Engine; not an official NuGet or Microsoft product.

activeper callv1

Price

$0.0026 per call

You pay the price shown. If a call turns out to cost more than its quote, you pay the actual price, capped at twice the quote. No monthly minimum. Top-ups start at $0.50.

Data source

NuGet.org

Data from the NuGet.org public API, https://api.nuget.org, reduced to the fields listed and served by Eden Engine; not an official NuGet or Microsoft product.

Use it

Five steps: search, inspect, learn, run, settle. No per-tool setup; your agent reaches this tool through the meta-tools it already has.

Connect once and your AI can find and run this tool, and any other it needs.

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agent

// 1. search: find the tool
omnial_search({ query: "what you need" })

// 2. inspect: price and input schema
omnial_inspect({ tool: "nuget/package-registration" })

// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "nuget/package-registration" })

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "nuget/package-registration", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "nuget/package-registration", input: { /* ... */ } })

// 5. settle: the call is charged when it finishes, nothing to do

Not connected yet? Point your MCP client at https://mcp.eden-engine.com/mcp, then copy a config for your client.

Pricing

Every charge this tool can incur.

Charge	Price
Per call	$0.0026

Updated: Oct 26, 2026

Input and output schemas

Input schema

input_schema.json

{
  "type": "object",
  "required": [
    "id"
  ],
  "properties": {
    "id": {
      "type": "string",
      "pattern": "^[a-z0-9][a-z0-9._-]*$",
      "maxLength": 128,
      "minLength": 1,
      "description": "NuGet package id in LOWERCASE, for example newtonsoft.json. The search tools return it as `idLower`."
    }
  },
  "additionalProperties": false
}

Output schema

output_schema.json

{
  "type": "object",
  "required": [
    "id",
    "idLower",
    "versionCount",
    "pagesInlined",
    "pages",
    "versions"
  ],
  "properties": {
    "id": {
      "type": [
        "string",
        "null"
      ],
      "description": "Package id with its original capitalisation; null when the index is not inlined."
    },
    "pages": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "lower",
          "upper",
          "count"
        ],
        "properties": {
          "count": {
            "type": [
              "integer",
              "null"
            ],
            "description": "Versions on the page (count)."
          },
          "lower": {
            "type": [
              "string",
              "null"
            ],
            "description": "Lowest version on the page."
          },
          "upper": {
            "type": [
              "string",
              "null"
            ],
            "description": "Highest version on the page."
          }
        },
        "description": "A registration page.",
        "additionalProperties": true
      },
      "description": "Registration pages, oldest versions first. Pass lower and upper to the registration-page tool."
    },
    "idLower": {
      "type": [
        "string",
        "null"
      ],
      "description": "Lowercase id."
    },
    "versions": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "version",
          "listed",
          "deprecated",
          "vulnerabilityCount"
        ],
        "properties": {
          "listed": {
            "type": "boolean",
            "description": "False when the version is unlisted."
          },
          "version": {
            "type": [
              "string",
              "null"
            ],
            "description": "Version."
          },
          "published": {
            "type": [
              "string",
              "null"
            ],
            "description": "Publish time, null for an unlisted version."
          },
          "deprecated": {
            "type": "boolean",
            "description": "True when the version is marked deprecated."
          },
          "vulnerabilityCount": {
            "type": "integer",
            "description": "Known security advisories against this version (count)."
          },
          "highestVulnerabilitySeverityCode": {
            "type": [
              "integer",
              "null"
            ],
            "description": "Highest advisory severity: 0 Low, 1 Moderate, 2 High, 3 Critical; null when none."
          }
        },
        "description": "One version.",
        "additionalProperties": true
      },
      "description": "One line per version, empty when the pages are not inlined."
    },
    "pagesInlined": {
      "type": "boolean",
      "description": "True when the per-version lines are included; false for a package of more than 127 versions."
    },
    "versionCount": {
      "type": "integer",
      "description": "Versions in the registration (count)."
    }
  },
  "additionalProperties": true
}