# FormulaSignal (formulasignal.com)

Tracks supplement labels by product name and alerts you when declared ingredient amounts change between dated label versions.

- Atlas card: https://inite.ai/en/atlas/formulasignal.com
- Site: https://formulasignal.com
- For: Supplement buyers reordering pre workouts, creatine or protein who want to know when formulas change
- Use 0/100 · alive 100/100

## Used for

- check a reorder's label against its last dated version
- compare caffeine per serving across two dated labels
- get emailed when a watched formula change is confirmed

## Price

- from 3.99 USD/month, free plan (read 2026-10-20 on https://formulasignal.com/pro)

## For developers

- OpenAPI: https://formulasignal.com/openapi.json (18 paths)
- API docs: https://formulasignal.com/developers
- MCP server: com.formulasignal/record (namespace; open on 2026-10-20, 18 tools)
- Read 2026-10-20

## MCP server, measured daily

Server: https://formulasignal.com/mcp, checked every day since 2026-10-20 (8 checks).

- Answered: 100% of daily checks
- Median first answer: 917 ms
- Sign-in: none
- Context its tool definitions take: about 8855 tokens (18 tools)
- Tool definitions: A, 100/100
- Warning "open_writes": watchlist.add, watchlist.remove
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: none
- Read 2026-10-20

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Source: INITE Atlas, https://inite.ai/en/atlas/formulasignal.com. JSON: https://inite.ai/api/atlas/formulasignal.com. MCP: https://inite.ai/api/mcp (atlas_lookup).