@modelcontextprotocol/server-scenario-modeler

Enables creation and persistence of multi-dimensional financial scenarios through MCP server endpoints that accept scenario parameters (variables, assumptions, time horizons) and store them in a structured format. Uses MCP's resource-based architecture to expose scenarios as queryable entities with versioning support, allowing clients to define base cases, stress tests, and sensitivity analyses without managing separate data infrastructure.

Computes derived financial metrics and propagates parameter changes across scenario dimensions using a calculation engine that evaluates formulas and dependencies between variables. Implements dependency tracking to ensure that when a base assumption changes (e.g., interest rate), all dependent calculations (NPV, IRR, cash flows) are automatically recalculated and propagated through the scenario tree.

Provides analytical tools to compare outcomes across multiple scenarios simultaneously, computing deltas, sensitivities, and ranking scenarios by specified metrics. Implements matrix-based comparison logic that aligns scenarios on common dimensions (time periods, asset classes, risk factors) and generates comparative reports showing which assumptions drive the largest outcome variations.

Exports scenario definitions and results in multiple formats (JSON, CSV, Excel, PDF) suitable for different downstream tools and stakeholders. Implements format-specific serialization logic that handles data type conversion, decimal precision, and layout optimization for each target format while preserving scenario metadata and calculation provenance.

Validates scenario definitions against financial constraints and business rules before execution, checking for logical inconsistencies (e.g., negative interest rates where invalid), parameter range violations, and assumption conflicts. Implements a constraint engine that evaluates user-defined rules and built-in financial constraints, providing detailed error messages that identify which parameters violate which constraints.

Provides pre-built scenario templates for common financial modeling use cases (e.g., recession scenarios, interest rate shock scenarios, market crash scenarios) that users can instantiate and customize. Implements a template registry with parameterized scenario definitions that can be cloned and modified, reducing the time required to set up standard scenario analyses.

Maintains a complete audit trail of scenario creation, modification, and calculation, recording who created each scenario, when it was modified, what parameters changed, and what calculations were run. Implements immutable event logging where each scenario change is recorded as an event, enabling reconstruction of historical scenarios and compliance documentation.

Exposes all scenario modeling capabilities as discoverable MCP tools with JSON schema definitions, enabling Claude and other MCP clients to understand available operations, required parameters, and expected outputs without external documentation. Implements MCP's tool discovery protocol to register tools dynamically and provide detailed descriptions that guide LLM agents in constructing appropriate requests.