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Compare MCP servers

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

DimensionBazi MCPAccurate Bazi calculation MCP server, providing reliable data for AI agents.Hevy 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
FMRS63 / 100 · C77 / 100 · B75 / 100 · B
Reliability8 / 2012 / 2013 / 20
Security and permissions12 / 2016 / 2012 / 20
Maintenance14 / 2016 / 2016 / 20
Documentation16 / 2018 / 2017 / 20
Setup experience13 / 2015 / 2017 / 20
Best for
  • AI application developers who need accurate Bazi calculation data
  • Chinese metaphysics enthusiasts or researchers who want to use AI tools for Bazi analysis
  • Users who wish to integrate Bazi and calendar features into AI assistants like Claude Desktop
  • 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 do not require high accuracy in Bazi calculations or only need simple entertainment
  • Non-technical users, as there is no GUI and command-line operations are required
  • Users who need commercial support or official guarantees (this is an open-source community-driven project)
  • 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 Node.js runtime environment
  • Requires network connectivity (for npx installation or communication with AI clients)
  • No additional system permissions needed, but ensure the AI client can access the local process or connect via HTTP
  • 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
  • Bazi calculations are based on traditional metaphysics; results are for reference only and should not be used as a basis for decisions
  • Data may have inaccuracies despite the project's goal to improve precision
  • Open-source projects may update frequently or have unstable maintenance; monitor version changes
  • Content related to fortune-telling may be controversial; approach with rationality
  • 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 DesktopClaude Desktop, Cursor, Codex, Google AntigravityClaude Desktop, VS Code, Cursor, Windsurf, Zed, Amp
Tools32611