| FMRS | 55 / 100 · C | 77 / 100 · B | 75 / 100 · B |
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| Reliability | 10 / 20 | 12 / 20 | 13 / 20 |
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| Security and permissions | 9 / 20 | 16 / 20 | 12 / 20 |
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| Maintenance | 12 / 20 | 16 / 20 | 16 / 20 |
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| Documentation | 13 / 20 | 18 / 20 | 17 / 20 |
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| Setup experience | 11 / 20 | 15 / 20 | 17 / 20 |
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| Best for | - Geotechnical and geomechanics engineers who already have an ITASCA engine installed and want to drive simulations through an AI agent by natural conversation
- Users who frequently need to look up PFC/FLAC/3DEC/MPoint/MassFlow commands and Python API documentation
- Researchers who submit and monitor long-running simulations while iterating on code
- Technical teams using MCP clients such as Claude Code, Codex CLI, or Gemini CLI
| - 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
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| Not for | - Users without any ITASCA engine installed — the execution tools depend on a local engine and bridge and cannot run simulations on their own
- Users expecting official ITASCA support or certification; this is a community project
- Users looking for browser, database, or cloud-storage capabilities rather than geomechanics simulation
- Users wanting a fully zero-configuration experience — first-time setup requires registering the MCP server and starting the bridge in the engine
| - 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)
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| Required permissions | - Run uvx locally and download/execute the itasca-mcp package from PyPI
- Execute code in the ITASCA engine's IPython console to start the bridge (addon.py or itasca_mcp_bridge.start())
- Submit code and simulation tasks to the running ITASCA engine through the bridge and read task state and results
- Network access to PyPI at bridge startup to check for and possibly self-upgrade to a newer release
- Read and write MCP client configuration files to register the server
| - 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
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| Risks and side effects | - The execution tools run code and simulations in a real ITASCA engine; wrong commands or parameters can produce incorrect results or consume significant compute time and resources
- The bridge automatically checks PyPI and self-upgrades, pulling in updates without per-update user confirmation, which introduces supply-chain risk
- Documentation browsing reduces but cannot fully eliminate hallucinated commands produced by the model
- Long-running simulations, if not properly monitored or interrupted, can tie up machine resources for a long time
- This is a community project rather than an official ITASCA release, so compatibility and maintenance cadence are not guaranteed by the upstream vendor
| - 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
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| Supported clients | Claude Code, Codex CLI, Gemini CLI, GitHub Copilot CLI, OpenCode | Claude Desktop, Cursor, Codex, Google Antigravity | Claude Desktop, VS Code, Cursor, Windsurf, Zed, Amp |
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| Tools | 1 | 26 | 11 |
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