# Magnus (ChatGPT App)

> Analytics for app publishers

- Type: app
- Publisher: Gototop LTD (official)
- Categories: Business, Data & Analytics
- Website: https://chatgpt.com/plugins/plugin_asdk_app_6a6cf7506ec88191b19e91e11afe0436
- Open in ChatGPT: https://chatgpt.com/plugins/plugin_asdk_app_6a6cf7506ec88191b19e91e11afe0436
- Version: 1.0.0
- Listed: 2026-10-04

## About

Magnus is an analytics platform for mobile and web app publishers. It aggregates marketing spend from ad networks, subscription and in-app revenue, ad-network monetization, payment-provider outcomes and first-party product-analytics events into one place, so a publisher can ask how a campaign, an app or an experiment is actually performing.

Over MCP the app exposes that data read-only. Three tools answer questions: marketing_timeline_report for acquisition and monetization performance (installs, spend, revenue, ROMI, forecasts), finances_risk_report and finances_risk_approval_rates for payment risk (approval rate, refunds, fraud alerts, disputes, chargebacks). A second group answers product-analytics questions from the publisher's own SDK events: event counts, funnels, retention, user-property segments and A/B experiment configuration. Everything else is a lookup helper that exists to feed those tools with real ids, filter values and metric definitions, because app ids, event names and metric semantics are account-specific and cannot be guessed.

Access is scoped to the companies the signed-in user is an active member of, and that membership is re-checked on every single call, so the model can never reach another tenant's data. The OAuth scope the app requests, mcp:analytics.read, grants read access only: no tool in the server can create, update or delete anything.

## How to use

1. **Add it in ChatGPT** Open Magnus in ChatGPT's Plugin directory (button above), select + to add it and sign in if asked.

2. **Use it in a chat** Type @ in the composer and pick Magnus, or start your message with its name. ChatGPT may also suggest it when it fits what you ask.

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Source: https://chatgptplugins.directory/apps/magnus · Index: https://chatgptplugins.directory/llms.txt · Independent and community-run. Not affiliated with or endorsed by OpenAI. ChatGPT is a trademark of OpenAI.