# Sigma Prep (sigmaprep.io)

Serves SAT math practice: a diagnostic that finds weak topics, video solutions for missed problems, and regenerated practice questions.

- Atlas card: https://inite.ai/en/atlas/sigmaprep.io
- Site: https://sigmaprep.io
- For: students preparing for the SAT math section who want to raise their score
- Categories: creative
- Use not measured/100 · alive 100/100

## Used for

- find which SAT math topics cost the most points
- watch video solutions for each missed problem
- take full-length timed SAT math practice tests

## Price

- from 49 USD/month, free plan (read 2026-10-17 on https://sigmaprep.io/#pricing)

## For developers

- MCP server: io.sigmaprep/worksheets (namespace; open on 2026-10-17, 2 tools)
- Read 2026-10-17

## MCP server, measured daily

Server: https://www.sigmaprep.io/api/mcp, checked every day since 2026-10-19 (9 checks).

- Answered: 100% of daily checks
- Median first answer: 149 ms
- Sign-in: none
- Context its tool definitions take: about 478 tokens (2 tools)
- Tool definitions: A, 100/100
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: none
- Read 2026-10-17

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