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

DimensionMantishackAn autonomous vulnerability-discovery agent for authorized security testing.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
FMRS49 / 100 · D77 / 100 · B75 / 100 · B
Reliability8 / 2012 / 2013 / 20
Security and permissions10 / 2016 / 2012 / 20
Maintenance8 / 2016 / 2016 / 20
Documentation13 / 2018 / 2017 / 20
Setup experience10 / 2015 / 2017 / 20
Best for
  • Security researchers with explicit authorization.
  • AppSec teams combining automated detection with attacker-simulation validation.
  • Technical users comfortable with an incomplete harness and external tool dependencies.
  • 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
  • Testing targets without authorization.
  • Users seeking a polished, complete commercial security platform.
  • Users expecting fabricated results when external scanners are unavailable.
  • 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 access to read and analyze the target codebase.
  • Depending on enabled capabilities, may invoke local scanners, solvers, and the CodeQL CLI.
  • Authorization must be established before active or exploit testing; otherwise restrict runs to read-only static analysis.
  • 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
  • Gated exploitation is off by default, but active testing can still affect a target.
  • Missing underlying binaries make corresponding scanning capabilities unavailable.
  • The project describes itself as rough, with known gaps and unfinished external toolchains.
  • CodeQL in particular does not permit commercial use; licenses for all invoked components should be reviewed.
  • 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, Cursor, Codex, Google AntigravityClaude Desktop, VS Code, Cursor, Windsurf, Zed, Amp
Tools142611