Use CompFig inside Claude and ChatGPT
CompFig runs as a remote MCP server. Once it is connected, your assistant calls the calculator instead of guessing comp rates from memory, and quotes the statute behind each number.
Server URL
https://compfig.com/api/mcp
No account or API key. Transport: Streamable HTTP. All tools are read-only and store nothing.
Connect
Claude (web, desktop, mobile): Settings → Connectors → Add custom connector → paste the URL.
ChatGPT: Settings → Apps & Connectors → Advanced → turn on Developer mode → Create → paste the URL.
Claude Code:
claude mcp add --transport http compfig https://compfig.com/api/mcp
Tools
| Tool | What it does |
|---|---|
calculate_temporary_disability | Weekly TTD or TPD benefit and an optional period total with the waiting period and week caps, step by step with citations. |
get_state_rates | Official maximums and minimums, formulas, waiting period and duration limits for a state. |
calculate_average_weekly_wage | Average weekly wage from gross earnings over a number of weeks. |
list_supported_states | States and the injury-date ranges with verified tables. |
Example prompts
- "I hurt my back at work in Tennessee on August 3, 2026. I made $1,050 a week. What will comp pay?"
- "My client in Pennsylvania earned $900 a week, injured in February 2026, out 30 days. Total TTD?"
- "Compare the maximum weekly benefit in New York and California for an injury this month."
Coverage
| State | Injury dates covered |
|---|---|
| California | 2026-01-01 to 2026-12-31; 2025-01-01 to 2025-12-31 |
| Texas | 2026-10-01 to 2027-09-30; 2025-10-01 to 2026-09-30; 2024-10-01 to 2025-09-30 |
| New York | 2026-07-01 to 2027-06-30 |
| Pennsylvania | 2026-01-01 to 2026-12-31 |
| North Carolina | 2026-01-01 to 2026-12-31 |
| South Carolina | 2026-01-01 to 2026-12-31 |
| Tennessee | 2026-07-01 to 2027-06-30; 2025-07-01 to 2026-06-30 |
| Kentucky | 2026-01-01 to 2026-12-31 |
| Alabama | 2026-07-01 to 2027-06-30; 2025-07-01 to 2026-06-30 |
| Missouri | 2026-07-01 to 2027-06-30; 2025-07-01 to 2026-06-30 |