# TrussLab

> TrussLab is a web application for the analysis, design and optimization of steel trusses. Geometry is generated from parametric inputs, solved with 3D FEM, checked to AISC 360-22, EN 1993-1-1, AS 4100:2020 or IS 800:2007, and optimized for weight. AI assistants operate the app through a remote MCP server.

## When to use TrussLab

- Modeling a steel roof, floor or bridge truss from span, depth, panel count and truss type (Pratt, Howe, Warren, Parallel chord, Pitched, Bowstring, Barrel, Tapered, Scissor).
- Running FEM analysis for reactions, member forces and deflections under dead, live, roof live, wind, seismic and notional load cases and combinations.
- Sizing members to a steel design code, with a step-by-step calculation report per member.
- Searching for a lighter truss by varying geometry, topology and member sections.
- Sending a truss model to ETABS, SAP2000 or Revit, or exporting it to DXF, Excel, SAP2000 (.s2k) or IDEA StatiCa.

Connections are not designed.

## AI assistants (MCP)

- MCP server URL: `https://engine.trusslab.in/mcp` (Streamable HTTP, OAuth 2.1)
- Supported clients: Claude, ChatGPT, Cursor, VS Code and other MCP clients that support remote servers with OAuth.
- Requirement: a TrussLab account with an active licence or trial. A trial is activated from the web app after sign-up.

Setup:

1. The MCP server URL is added to the AI client as a custom connector (remote MCP server).
2. The first connection opens a TrussLab sign-in; access is approved once.
3. The web app is opened at https://app.trusslab.in and the **AI apps** switch in the top bar is turned on. The assistant works on that browser tab, and changes appear live.

Behaviour:

- Tools define geometry, supports, loads and load combinations, and run analysis, auto-design and optimization.
- Auto-design, optimization, exports and project deletion require approval in the web app.
- Actions count toward the same monthly allowance as in the web app. TrussLab adds no charge for AI use.
- Access is revoked on the account page: https://www.trusslab.in/account#account-ai-apps

## Links

- [Web app](https://app.trusslab.in): runs in the browser; can be explored without an account
- [Documentation](https://www.trusslab.in/docs): AI assistants (MCP) setup, modeling, analysis engine, design checks, section catalogues, optimization, roof workspace, interoperability
- [Pricing](https://www.trusslab.in/pricing): plans and trial
- [Verification](https://www.trusslab.in/verification): benchmark models compared against reference solutions
- [About](https://www.trusslab.in/about): purpose, verification approach and data handling
- [Contact](https://www.trusslab.in/contact): sales, licensing and enterprise plans
- [Trusslab Desktop Connector](https://www.trusslab.in/docs#interoperability): Windows app for live push to ETABS 21+, SAP2000 24+ and Revit 2023 to 2027

## Topics

- [Truss design software](https://www.trusslab.in/truss-design-software): workflow, analysis, member design, optimization and scope
- [Parametric truss design](https://www.trusslab.in/parametric-truss-design): geometric parameters, truss types, regeneration rules
- [Truss optimization](https://www.trusslab.in/truss-optimization): design variables, objective, genetic algorithm
- [Steel roof truss design](https://www.trusslab.in/steel-roof-truss-design): roof workspace, DXF roof surfaces, area loads
- Design codes: [AISC 360-22](https://www.trusslab.in/aisc-360-truss-design), [EN 1993-1-1](https://www.trusslab.in/eurocode-3-truss-design), [AS 4100:2020](https://www.trusslab.in/as-4100-truss-design), [IS 800:2007](https://www.trusslab.in/is-800-truss-design): clauses, catalogues, verification and scope
- [80 m span truss case study](https://www.trusslab.in/case-studies/80m-span-truss-optimization): five layouts compared on weight and utilization

## Optional

- [Terms of service](https://www.trusslab.in/terms)
- [Privacy policy](https://www.trusslab.in/privacy-policy)
- [Sitemap](https://www.trusslab.in/sitemap.xml)