JSR Package Versions

jsrregistry/package-versions

Every published version of one JSR package, newest first: version, publish time and yanked flag, with the registry's latest version and the version count. Some older versions carry no publish time. Data from JSR, https://jsr.io, modified by Eden Engine (reshaped to a list); 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: "jsrregistry/package-versions" })

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

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "jsrregistry/package-versions", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "jsrregistry/package-versions", 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": [
    "scope",
    "name"
  ],
  "properties": {
    "name": {
      "type": "string",
      "pattern": "^[a-z0-9][a-z0-9-]*$",
      "maxLength": 100,
      "minLength": 1,
      "description": "Package name without the scope, lower case letters, digits and hyphens. For example path, flag."
    },
    "scope": {
      "type": "string",
      "pattern": "^[a-z0-9][a-z0-9-]*$",
      "maxLength": 100,
      "minLength": 1,
      "description": "Scope name without the @, lower case letters, digits and hyphens. For example std, luca, deno."
    }
  },
  "additionalProperties": false
}

Output schema

output_schema.json

{
  "type": "object",
  "required": [
    "name",
    "latest_version",
    "version_count",
    "versions"
  ],
  "properties": {
    "name": {
      "type": "string",
      "description": "Package name, without the scope."
    },
    "scope": {
      "type": [
        "string",
        "null"
      ],
      "description": "Scope, without the @."
    },
    "versions": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "version",
          "created_at",
          "yanked"
        ],
        "properties": {
          "yanked": {
            "type": "boolean",
            "description": "True when the version was yanked."
          },
          "version": {
            "type": "string",
            "description": "Version."
          },
          "created_at": {
            "type": [
              "string",
              "null"
            ],
            "description": "When the version was published, ISO 8601 UTC; null for some older versions."
          }
        },
        "description": "A published version.",
        "additionalProperties": true
      },
      "description": "Versions, newest publish time first; versions with no publish time last."
    },
    "version_count": {
      "type": "integer",
      "description": "Number of published versions."
    },
    "latest_version": {
      "type": [
        "string",
        "null"
      ],
      "description": "The registry's latest-version pointer; not necessarily the newest by date."
    }
  },
  "description": "A JSR package's versions.",
  "additionalProperties": true
}