mempool.space blocks API

Recent Bitcoin blocks, newest first: height, transactions, size, difficulty, reward and median fee.

Ask your agent

“Call mempool/blocks with no arguments and summarize what comes back.”

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

Path: mempool/blocks
MCP tool: call_endpoint
Credits: 1
Cache: 30 min

Parameters

limitinteger, optional	1-15 most recent blocks, default 5

Response

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

More mempool.space tools

pools

MCP tool call

{
  "name": "call_endpoint",
  "arguments": {
    "path": "mempool/blocks",
    "params": {}
  }
}

curl

curl "https://data.openkrill.app/v1/mempool/blocks" \
  -H "x-api-key: YOUR_API_KEY"

Response

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