crates.io downloads API

Download counts for one crates.io package, as a total or a per-day series.

Ask your agent

“Call cratesio/downloads with name requests and summarize what comes back.”

Works in any MCP client connected to https://data.openkrill.app/mcp. Install in one line.

Path: cratesio/downloads
MCP tool: call_endpoint
Credits: 1
Cache: 30 min

Parameters

namestring, required	Package name, such as requests or better-sqlite3
periodstring, optional	day, week or month, default week
seriesstring, optional	true returns one row per day instead of a total

Response

data.resources[] uses the same keys as every other platform: author, engagement, metadata, with crates.io-only fields under extras. A failed upstream call is never billed.

More crates.io tools

Same downloads call on other platforms

MCP tool call

{
  "name": "call_endpoint",
  "arguments": {
    "path": "cratesio/downloads",
    "params": {
      "name": "requests"
    }
  }
}

curl

curl "https://data.openkrill.app/v1/cratesio/downloads?name=requests" \
  -H "x-api-key: YOUR_API_KEY"

Response

{
  "success": true,
  "platform": "cratesio",
  "endpoint": "cratesio/downloads",
  "data": {
    "resources": [
      { "id": …, "title": …, "text": …, "url": …,
        "author": {…}, "engagement": {…},
        "metadata": {…}, "extras": {…} }
    ]
  },
  "credits_used": 1,
  "cached": false
}