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mempool.space

mempool.space

Bitcoin blockchain and Lightning Network data from the mempool.space open-source explorer: addresses, transactions, blocks, unconfirmed mempool state, recommended fee rates, mining pool and hashrate statistics, bitcoin price history, and Lightning node, channel and geography data.

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Runs on your machine under the source's own terms

The crw MCP on your computer calls mempool.space directly. Calls cost no credits and the data does not pass through fastCRW. Install it once for Claude Code, Cursor, Codex, Windsurf, Gemini CLI or OpenCode, with your fastCRW API key in place of the placeholder:

Ask with this source

A prompt for your agent that names this source and how to call it through the crw MCP.

  • Acceleration history

    Use mempool.space (mempool) from fastCRW Pergamon, capability "Acceleration history" (accelerations-history). You are studying whether paid transaction acceleration actually worked, historically. Use the crw MCP tools: crw_find_data to confirm the source and its options, then crw_get_data with provider "mempool" and capability "accelerations-history". Tell me the credits used and cite the licence from the response. If the crw MCP tools are missing, install them with: npx -y crw-mcp install --api-key <your fastCRW API key>

  • Pending accelerations

    Use mempool.space (mempool) from fastCRW Pergamon, capability "Pending accelerations" (accelerations-pending). You want to know which transactions are being paid to jump the queue right now. Use the crw MCP tools: crw_find_data to confirm the source and its options, then crw_get_data with provider "mempool" and capability "accelerations-pending". Tell me the credits used and cite the licence from the response. If the crw MCP tools are missing, install them with: npx -y crw-mcp install --api-key <your fastCRW API key>

  • Acceleration statistics

    Use mempool.space (mempool) from fastCRW Pergamon, capability "Acceleration statistics" (acceleration-stats). You want the aggregate scale of mempool.space's acceleration service in one object. Use the crw MCP tools: crw_find_data to confirm the source and its options, then crw_get_data with provider "mempool" and capability "acceleration-stats". Tell me the credits used and cite the licence from the response. If the crw MCP tools are missing, install them with: npx -y crw-mcp install --api-key <your fastCRW API key>

  • Address summary

    Use mempool.space (mempool) from fastCRW Pergamon, capability "Address summary" (address). You hold a Bitcoin address and want its balance and activity totals without pulling its transactions. Example options: address=1wiz18xYmhRX6xStj2b9t1rwWX4GKUgpv. Use the crw MCP tools: crw_find_data to confirm the source and its options, then crw_get_data with provider "mempool" and capability "address". Tell me the credits used and cite the licence from the response. If the crw MCP tools are missing, install them with: npx -y crw-mcp install --api-key <your fastCRW API key>