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Catalogue

Products

There is nothing to buy here yet. Four tool families are being built, and until they ship everything we offer is a service — measured from your model, delivered by us. The platform underneath is free either way.

See the services Download Paracore — free

The tools

Four families. None on the shelf yet.

We are building tools for the Revit work you repeat every day — one screen, one set of parameters, one button in the Paracore gallery. The four families are settled; the tools inside them are not, so nothing here is described yet. When one is real, it appears on this page.

The trade packs are ours, not yours

ParasConcrete, ParasMasonry, ParasPlaster, ParasPaint and ParasAluminum are the tools we run in-house to deliver our services. They are not for sale and not downloadable. What you can buy from us today is the work itself — see the services and prices.

Why this exists

Dynamic C# scripting, and a desktop app to keep it in.

Paracore is two things that normally arrive separately. A scripting environment that runs C# straight against the live Revit API — the language and the objects an add-in uses, but with no project file, no build step and no restarting Revit. And a desktop app that manages the result: every script you keep becomes a tool, with its own parameter screen, filed in a gallery and run from there. The four approaches below each solve part of that. None of them is both.

Dynamo
A visual node graph. Genuine automation, but you program by wiring boxes together. Complex logic becomes a diagram only its author can read, and one wrong wire stays invisible until the run fails.
pyRevit
Python, packaged as ribbon buttons. Very good for small utilities. It is Python rather than C#, so you work through a bridge instead of the API itself, and every tool ships as its own extension folder.
Rhino / Grasshopper
A second modelling environment. Geometry-first authoring, bridged into Revit with Rhino.Inside. Powerful — but your building now exists in two places and the two have to be kept in step.
C# add-in
The professional route, with a build cycle. Visual Studio, a project file, a manifest, and a restart of Revit to see one changed line. Correct, and far too slow to think in.

What we did instead

Paracore runs C# — the language the Revit API is actually written in — straight against your open document. No node graph, no Python bridge, no second model, no compile-and-restart. You write, you press run, the model changes. When a script earns its place, you save it as a tool with its own parameter screen and it sits in the gallery beside every other tool.

That combination — a desktop app, a free execution engine and plain C# against the live model — is not something you can assemble from the tools already on the market. It is the reason this exists.

Free

Everything you need to start.

The platform is free and MIT licensed. What we sell is the work and the training — not the platform itself.

Free

The platform

The add-in, the core execution engine and the desktop app — a script management platform for Revit. Create, edit, organise and run C# against the open document: raw Revit API or our extension methods, with a generated parameter screen for every tool. MIT licensed. Revit 2025 or later.

Freeadd-in + engine + app
Download
Free

Documentation

Installation, the REPL guide, gallery script format, parameter attributes and the full extension-method reference. If you want to write your own tools, start here.

FreeGitHub Pages
Read the docs
Free

Source code

The add-in, the desktop app, the VS Code extension and the public MCP server — MIT licensed and open on GitHub. Clone it, read it, break it. The commercial tool factory is not published.

FreeMIT licence
View on GitHub

Not sure which

Tell us the model, and we will tell you what it can measure.

One project file. We will tell you what is measurable, what is missing, and which service covers it.

Request a free model check