Scenario Simulator
Run what-if projections, sensitivity analysis, and break-even calculations for business scenarios.
Deterministic scenario modeling for business planning. Pre-built templates for SaaS growth, pricing changes, churn impact, cost reduction, hiring plans, and cash runway. Run sensitivity analysis to see which assumptions matter most, or solve for break-even values. Custom metrics supported.
Try asking Muse: "Show me how my SaaS revenue changes if churn increases by 5 percent, and what monthly price I'd need to hit 100k MRR."
Source: Found in the official MCP Registry (io.github.inity13/scenariosim-mcp) · First listed September 25, 2026
Last 24 hours
Each bar is one check, every 15 minutes. Green means it answered. Last checked 2 h ago.
Is it safe to connect?
What Muse can see: It does not ask you to sign in, so it cannot see your accounts. It only sees what Muse sends it from your request.
Before it acts: Read what Muse plans to do before you approve it, and remove the app from Muse when you stop using it.
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How to add it to Muse
Not in Muse's Connectors list yet, but Muse can still use it. Copy the request below and paste it into Muse. Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
https://scenariosim-mcp.pages.dev/mcpNot in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
Technical details: safety screening, tools, response time and recent checks
Response time at the last check: 908ms. Worked in 100% of checks over 30 days.
Screening · September 25, 2026
Screened, no issues found
Screening looks for known threats and hidden instructions at the time of the check, and runs again weekly and whenever the tool list changes. It cannot see the server's code, so only connect what you need and review what Muse asks to do. How screening works.
Tools · 6
run_scenarioMain simulation tool. Run a deterministic what-if projection from a pre-built template (saas_growth, pricing_change, churn_impact, cost_reduction, hiring_plan, cash_runway, unit_economics, marketing_funnel, compound_growth) OR a free-form 'metrics' model. Returns period-by-periodsensitivity_analysisVary one or more input assumptions and show the impact on a target output metric (one-at-a-time sensitivity). Provide 'template', the input to sweep via 'variable' (or 'variables' array), and 'target_metric' (defaults to the template's primary output). Control the sweep with 'varbreak_evenSolve for the input value required to make an output metric hit a target value (deterministic bisection root-finding). Provide 'template', 'solve_for' (the input to solve), 'target_metric' (defaults to the primary output), and 'target_value'. Optionally pass 'bounds' [low, high] compare_scenariosRun 2-3 scenarios and compare their key_results side by side, with deltas against the first (baseline) scenario. Provide a 'scenarios' array where each entry is {name?, template, inputs} (each may set its own horizon, or pass a shared top-level 'horizon'). Optionally rank on 'comlist_templatesDiscovery tool: list every pre-built scenario template (id, label, category, description, primary output, documented inputs with defaults/units, and available output metrics), plus how to run a custom free-form scenario and the supported period labels. No required parameters.health_checkServer health, version, and capabilities (tools, templates, period labels, max horizon). No parameters.Recent checks
Link
https://scenariosim-mcp.pages.dev/mcpQuestions about Scenario Simulator in Muse
How do I connect Scenario Simulator to Muse?
Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Scenario Simulator to help me. It is a free service with an MCP server at https://scenariosim-mcp.pages.dev/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
Is Scenario Simulator working right now?
At the last check (September 28, 2026, 07:00 UTC) the endpoint was working, answering in 908ms. Over the last 7 days it answered 100% of health checks. It is checked every 15 minutes.
Is Scenario Simulator safe to connect to Muse?
It was screened on September 25, 2026 with the result "screened, no issues found". Screening checks the domain against threat feeds and reads the tools for hidden instructions and requests for passwords or card numbers. It cannot see the server's code, so grant only the access you need.
What can Scenario Simulator do in Muse?
It exposes 6 tools, including run_scenario, sensitivity_analysis, break_even, compare_scenarios. For example, you could ask Muse: "Show me how my SaaS revenue changes if churn increases by 5 percent, and what monthly price I'd need to hit 100k MRR."
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