| FMRS | 52 / 100 · D | 77 / 100 · B | 75 / 100 · B |
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| Reliability | 8 / 20 | 12 / 20 | 13 / 20 |
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| Security and permissions | 13 / 20 | 16 / 20 | 12 / 20 |
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| Maintenance | 7 / 20 | 16 / 20 | 16 / 20 |
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| Documentation | 11 / 20 | 18 / 20 | 17 / 20 |
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| Setup experience | 13 / 20 | 15 / 20 | 17 / 20 |
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| Best for | - Individuals or teams with a Twelve Data account who want market data inside their AI assistant
- Users who want a no-install setup via the hosted cloud connector
- Developers who prefer to self-host with their own API key
| - 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 a Twelve Data account who don't want to sign up or authorize access
- Fully offline scenarios with no third-party data dependency
- General tasks unrelated to financial market data
| - 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 | - Cloud option: browser-based OAuth login linking your account to the Twelve Data hosted service
- Local option: reads TWELVE_DATA_API_KEY from a .env file and uses it to call the Twelve Data API
- Makes outbound network requests to fetch market data (to mcp.twelvedata.com for the cloud option, or directly to the Twelve Data API locally)
| - 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 cloud server is hosted by Twelve Data, requiring account authorization to a third-party service
- In local mode, the API key is stored in plaintext in the .env file and must be kept secure
- Data access and rate limits are bound by your Twelve Data subscription plan
- The repository does not specify an open-source license, leaving usage and redistribution terms unclear
| - 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 Desktop, ChatGPT | 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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