Search npm Packages

npmregistry/search-packages

Searches the npm registry by text and qualifiers (author:, maintainer:, keywords:, scope:), up to 250 per page: name, version, description, keywords, licence, links, publisher, weekly and monthly downloads, dependents and the registry's search relevance score. Data from the npm public registry, https://registry.npmjs.org, reduced to the fields listed (e-mail addresses, signatures and security data are not returned) and served by Eden Engine; not an official npm 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

npm public registry

Data from the npm public registry, https://registry.npmjs.org, reduced to the fields listed (e-mail addresses, signatures and security data are not returned) and served by Eden Engine; not an official npm 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: "npmregistry/search-packages" })

// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "npmregistry/search-packages" })

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "npmregistry/search-packages", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "npmregistry/search-packages", 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": [
    "text"
  ],
  "properties": {
    "from": {
      "type": "integer",
      "default": 0,
      "maximum": 5000,
      "minimum": 0,
      "description": "Results to skip, for paging, default 0."
    },
    "size": {
      "type": "integer",
      "default": 20,
      "maximum": 250,
      "minimum": 1,
      "description": "Results per page, 1 to 250, default 20."
    },
    "text": {
      "type": "string",
      "maxLength": 64,
      "minLength": 2,
      "description": "Search text, 2 to 64 characters, for example left-pad or keywords:cli. Qualifiers: author:, maintainer:, keywords:, scope:, not:deprecated."
    }
  },
  "additionalProperties": false
}

Output schema

output_schema.json

{
  "type": "object",
  "required": [
    "items"
  ],
  "properties": {
    "items": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "name": {
            "type": [
              "string",
              "null"
            ],
            "description": "Package name."
          },
          "license": {
            "type": [
              "string",
              "null"
            ],
            "description": "Licence."
          },
          "npm_url": {
            "type": [
              "string",
              "null"
            ],
            "description": "npmjs.com page."
          },
          "version": {
            "type": [
              "string",
              "null"
            ],
            "description": "Latest version."
          },
          "bugs_url": {
            "type": [
              "string",
              "null"
            ],
            "description": "Issue tracker."
          },
          "homepage": {
            "type": [
              "string",
              "null"
            ],
            "description": "Home page."
          },
          "keywords": {
            "type": "array",
            "items": {
              "type": "string",
              "description": "A keyword."
            },
            "description": "Keywords."
          },
          "published": {
            "type": [
              "string",
              "null"
            ],
            "description": "When the latest version was published, ISO 8601."
          },
          "publisher": {
            "type": [
              "string",
              "null"
            ],
            "description": "npm username of the publisher."
          },
          "dependents": {
            "type": [
              "integer",
              "null"
            ],
            "description": "Packages that depend on this one."
          },
          "description": {
            "type": [
              "string",
              "null"
            ],
            "description": "Description."
          },
          "maintainers": {
            "type": "array",
            "items": {
              "type": "string",
              "description": "An npm username."
            },
            "description": "Maintainer usernames."
          },
          "search_score": {
            "type": [
              "number",
              "null"
            ],
            "description": "The registry's relevance score for this search; not bounded to 0-1."
          },
          "repository_url": {
            "type": [
              "string",
              "null"
            ],
            "description": "Repository."
          },
          "downloads_last_week": {
            "type": [
              "integer",
              "null"
            ],
            "description": "Downloads in the last 7 days."
          },
          "downloads_last_month": {
            "type": [
              "integer",
              "null"
            ],
            "description": "Downloads in the last 30 days."
          }
        },
        "description": "A package.",
        "additionalProperties": true
      },
      "description": "Matching packages, best match first."
    },
    "total": {
      "type": [
        "integer",
        "null"
      ],
      "description": "Packages matching."
    }
  },
  "additionalProperties": true
}