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Compare MCP servers

Compare scores, permissions, risks, and fit in one decision-focused table.

DimensionAlby Bitcoin Payments MCP ServerConnect a bitcoin lightning wallet to your LLM via Nostr Wallet ConnectHevy MCPManage your Hevy workout data from AI assistants via MCP.Firecrawl MCP ServerFirecrawl's official MCP server for web search, scraping, and structured extraction for AI agents
FMRS58 / 100 · C77 / 100 · B75 / 100 · B
Reliability7 / 2012 / 2013 / 20
Security and permissions8 / 2016 / 2012 / 20
Maintenance13 / 2016 / 2016 / 20
Documentation16 / 2018 / 2017 / 20
Setup experience14 / 2015 / 2017 / 20
Best for
  • Users who already have an NWC-compatible Lightning wallet and want an LLM to act on it
  • Developers integrating bitcoin payment capability into MCP-capable clients like Claude, Goose, Cline, or Windsurf
  • Hevy PRO users who want AI assistants to directly access their workout data
  • People who prefer using MCP clients like Claude, Cursor, Codex for fitness tracking
  • Anyone needing summaries and insights from their training data
  • Scenarios needing clean, structured web context fed to an AI assistant
  • Users already on the Firecrawl platform who want to call its scraping capability directly via MCP
Not for
  • Users who don't use the bitcoin Lightning Network or lack an NWC wallet
  • Use with weaker models — the README notes a capable model (e.g. Claude 3.7 Sonnet) is required or the server may not function correctly
  • Users without a Hevy PRO subscription (API key required)
  • Users who want to use the server without an API key
  • Those needing delete workflows (Hevy API does not expose delete endpoints)
  • Simple static-page scraping where you don't want to depend on a third-party API and incur call costs
  • Sites that explicitly disallow automated access (robots.txt)
Required permissions
  • Requires an NWC connection secret, which grants the server the ability to act on your wallet's funds
  • In hosted/remote mode, this secret is transmitted to the Alby server as a Bearer header or URL parameter
  • Requires HEVY_API_KEY environment variable for Hevy API authentication
  • Can create, update, and replace workouts, routines, folders, templates, and body measurements via tools
  • Read operations can fetch workouts, routines, folders, templates, history, and user info
  • Requires a Firecrawl API key to call; cost and quota are governed by the Firecrawl account
  • firecrawl_agent/firecrawl_interact perform automated browser interaction, which may trigger login or form-submission flows on the target site
Risks and side effects
  • If the NWC connection secret leaks, anyone holding it can control the associated wallet's funds
  • Passing the secret via a URL query parameter risks it being logged in browser history, server logs, or proxies
  • Relying on a weaker model may lead to unintended or incorrect payment actions
  • API key can be misused if leaked; do not expose in URLs, logs, or screenshots
  • Create operations may produce duplicates on retry; update operations replace existing records
  • The server sends data to the Hevy API and may send telemetry to external services unless disabled
  • Bulk crawl/map tools can generate significant request volume against a target site — respect the site's rate limits and terms of service
  • firecrawl_agent's interactive action chain is longer — define task boundaries clearly before running it to avoid accidentally triggering actions on a sensitive site
Supported clientsClaude Desktop, Claude Web, Claude Code, Goose Desktop, Goose CLI, Cline, Windsurf, N8NClaude Desktop, Cursor, Codex, Google AntigravityClaude Desktop, VS Code, Cursor, Windsurf, Zed, Amp
Tools02611