| FMRS | 36 / 100 · D | 77 / 100 · B | 75 / 100 · B |
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| Reliability | 6 / 20 | 12 / 20 | 13 / 20 |
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| Security and permissions | 8 / 20 | 16 / 20 | 12 / 20 |
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| Maintenance | 7 / 20 | 16 / 20 | 16 / 20 |
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| Documentation | 10 / 20 | 18 / 20 | 17 / 20 |
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| Setup experience | 5 / 20 | 15 / 20 | 17 / 20 |
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| Best for | - Heavy users who need scripted, batched, or pipeline-ready Flow generation
- Automation and AI-video projects that want to expose Flow generation to agents
- Developers with Google Flow access and Veo credits outside restricted regions
| - 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 expecting official Google support or an official API
- Users unwilling to accept account-automation risk or spend their own Flow credits
- Users needing headless pure-HTTP or serverless browserless deployment
- Users wanting to redistribute or resell the tool beyond Google's services
| - 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 | - Requires the user's own logged-in Google Flow session and account credentials
- Persists a local Playwright Chromium profile (default per-user directory, configurable via GFLOW_CLI_HOME)
- Writes generated outputs to a local output directory (or via GFLOW_CLI_STORAGE_URI to S3, MinIO, or Google Cloud Storage)
- Reaches Google's private Flow interfaces (aisandbox-pa.googleapis.com or the migrated batchexecute endpoint)
- Video generation spends Flow credits on that account
| - 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 tool is alpha and reverse-engineered with no Google affiliation, and can break when Google's endpoints or UI change without notice
- Automation is subject to Google's ToS and carries account-flagging risk; the project deliberately uses no proxies, no fingerprint spoofing, and does not pretend it isn't automation
- Video generation spends real credits; when the UI drifts the CLI fails fast and loudly (e.g. selector drift = exit 23) rather than resubmitting
- The MIT license covers only its code and grants no rights to Flow, Veo output, or any Google service
- Installing from a local checkout without pinning Playwright can pull an untested browser driver that silently wedges generation
| - 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 | Claude Desktop, Cursor, Codex, Google Antigravity | Claude Desktop, VS Code, Cursor, Windsurf, Zed, Amp |
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| Tools | 0 | 26 | 11 |
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