Mempool Space
FreeNot checkedMCP server for Bitcoin block explorer and mempool/fee statistics, providing tools to query fees, mempool stats, blocks, transactions, addresses, hashrate, and m
About
MCP server for Bitcoin block explorer and mempool/fee statistics, providing tools to query fees, mempool stats, blocks, transactions, addresses, hashrate, and mining pools.
README
mempool.space MCP — Bitcoin block explorer + mempool / fee statistics. No auth.
Part of Pipeworx — an MCP gateway connecting AI agents to 1394+ live data sources.
Tools
recommended_fees()— sat/vB fee recommendations (fastest / half-hour / hour / economy / minimum)mempool_stats()— current mempool size + tx count + total feesblock_height()— current chain tipget_block(hash_or_height)— block detailget_transaction(txid)— transaction detailget_tx_status(txid)— confirmation stateget_address(address)— UTXO + tx-count summaryget_address_transactions(address, limit?)— recent transactionshashrate(period?)— hashrate / difficulty historymining_pools(period?)— block share by mining pool
Networks
- Bitcoin mainnet (default)
- Pass
network: "testnet"for testnet or"signet"for signet - Pass
network: "liquid"for Liquid sidechain
Data source
https://mempool.space/api/ (and per-network sub-paths).
Quick Start
Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):
{
"mcpServers": {
"mempool-space": {
"url": "https://gateway.pipeworx.io/mempool-space/mcp"
}
}
}
Or connect to the full Pipeworx gateway for access to all 1394+ data sources:
{
"mcpServers": {
"pipeworx": {
"url": "https://gateway.pipeworx.io/mcp"
}
}
}
Using with ask_pipeworx
Instead of calling tools directly, you can ask questions in plain English:
ask_pipeworx({ question: "your question about Mempool Space data" })
The gateway picks the right tool and fills the arguments automatically.
More
License
MIT
Installing Mempool Space
This server has no published package — it is built from source. Open the repository and follow its README.
▸ github.com/pipeworx-io/mcp-mempool-spaceFAQ
Is Mempool Space MCP free?
Yes, Mempool Space MCP is free — one-click install via Unyly at no cost.
Does Mempool Space need an API key?
No, Mempool Space runs without API keys or environment variables.
Is Mempool Space hosted or self-hosted?
A hosted option is available: Unyly runs the server in the cloud, no local setup required.
How do I install Mempool Space in Claude Desktop, Claude Code or Cursor?
Open Mempool Space on unyly.org, pick your client tab (Claude Desktop, Claude Code, Cursor) and press Install — the config is generated automatically, no JSON editing.
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