Search JSR Packages

jsr/search-packages

Searches the JSR (JavaScript Registry) for packages by keyword and returns a page of matches: scope, name, description, latest version, version count, JSR score, runtime compatibility and linked GitHub repository, with the total match count. Data from JSR, https://jsr.io, modified by Eden Engine (fields renamed and reduced); not an official JSR or Deno Land 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

JSR

Package data from JSR, the JavaScript Registry, https://jsr.io, fetched through its public API. Modified by Eden Engine: fields renamed and reduced (publisher and repository numeric ids and fields the list endpoints leave empty are dropped) and served by Eden Engine; this is not an official JSR or Deno Land 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: "jsr/search-packages" })

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

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "jsr/search-packages", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "jsr/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 27, 2026

Input and output schemas

Input schema

input_schema.json

{
  "type": "object",
  "required": [
    "query"
  ],
  "properties": {
    "page": {
      "type": "integer",
      "default": 1,
      "maximum": 1000,
      "minimum": 1,
      "description": "Page number, from 1. Defaults to 1."
    },
    "limit": {
      "type": "integer",
      "default": 20,
      "maximum": 100,
      "minimum": 1,
      "description": "Packages per page, 1 to 100. Defaults to 20."
    },
    "query": {
      "type": "string",
      "maxLength": 100,
      "minLength": 1,
      "description": "Search text, matched against package scope, name and description. For example path, http client."
    }
  },
  "additionalProperties": false
}

Output schema

output_schema.json

{
  "type": "object",
  "required": [
    "total",
    "packages"
  ],
  "properties": {
    "total": {
      "type": "integer",
      "description": "Number of packages matching, across all pages."
    },
    "packages": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "scope",
          "name",
          "latest_version",
          "version_count",
          "score_percent"
        ],
        "properties": {
          "name": {
            "type": "string",
            "description": "Package name, without the scope."
          },
          "scope": {
            "type": "string",
            "description": "Scope, without the @."
          },
          "created_at": {
            "type": [
              "string",
              "null"
            ],
            "description": "When the package was created, ISO 8601 UTC."
          },
          "updated_at": {
            "type": [
              "string",
              "null"
            ],
            "description": "When the package record was last updated, ISO 8601 UTC."
          },
          "description": {
            "type": [
              "string",
              "null"
            ],
            "description": "Package description."
          },
          "symbol_count": {
            "type": [
              "integer",
              "null"
            ],
            "description": "Number of documented symbols; null until JSR has counted them."
          },
          "score_percent": {
            "type": [
              "integer",
              "null"
            ],
            "description": "JSR score, 0 to 100."
          },
          "version_count": {
            "type": [
              "integer",
              "null"
            ],
            "description": "Number of published versions."
          },
          "latest_version": {
            "type": [
              "string",
              "null"
            ],
            "description": "Latest published version; null when none is published."
          },
          "runtime_compat": {
            "type": "object",
            "required": [],
            "properties": {},
            "description": "Runtimes the package declares support for: a key per runtime JSR has a verdict on (browser, deno, node, workerd, bun), true or false. A missing key means the package declares nothing for that runtime.",
            "additionalProperties": true
          },
          "github_repository": {
            "type": [
              "object",
              "null"
            ],
            "required": [],
            "properties": {
              "name": {
                "type": "string",
                "description": "Repository name."
              },
              "owner": {
                "type": "string",
                "description": "Repository owner."
              }
            },
            "description": "GitHub repository the package is published from; null when none is linked.",
            "additionalProperties": true
          }
        },
        "description": "A package.",
        "additionalProperties": true
      },
      "description": "Packages on this page."
    }
  },
  "description": "A page of matching packages.",
  "additionalProperties": true
}