
Connect Rebar Congestion Check to ChatGPT, Claude and Gemini
Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Verify reinforcement density and concrete placement feasibility instantly.
Developed, maintained, and hosted by Vinkius.
MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED
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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.
Your AI does the work. We keep it safe and sound.
No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.
Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

Each Connector runs inside its own sealed environment.
Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.
One switch stops every agent. Instantly.
One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.
Spending limits that pause instead of surprise.
Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.
Three controls, built into the layer your AI connects through.
Curated set · 4 capabilities
We ship only the actions that matter.
01-04
4 capabilities in this set.
Part of 4 available through Rebar Congestion Check.
- 01
Evaluate vibration access
This capability checks if there is enough room for a concrete vibration capability to enter the cage.
- 02
Calculate clear spacing
This capability determines the actual physical gap between rebar elements.
- 03
Check aggregate passage
This capability verifies if the specified concrete aggregate can pass through the rebar cage.
- 04
Get congestion score
This capability provides a high-level assessment of the reinforcement density.
Real work
What teams actually run
Design Validation
Check if a proposed rebar layout will allow for proper concrete flow during the design phase.
Site Readiness
Verify that the equipment being used on site, like vibrators, will actually fit in the cages.
Risk Mitigation
Use congestion scores to flag high-density areas that might lead to structural defects.
Material Compatibility
Ensure the chosen aggregate size is small enough to pass through the reinforcement spacing.
One connector, every AI
Rebar Congestion Check works with the most popular AI clients.
These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.
Claude
ChatGPT
Gemini
Perplexity
Grok
Microsoft Copilot
Cursor
VS Code
Windsurf
JetBrains
Cline
LangChain
Vercel AI SDK
Lovable
Z.ai
Raycast
Qwen Code
Kimi Code
Le ChatBuilding your own app? The connector is yours to use.
You don't need a client to put Rebar Congestion Check to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.
Observed, not estimated
891ms average. Fast in production.
Rebar Congestion Check is checked daily against the live service.
- Fastest day
- 730ms
- Slowest day
- 1281ms
- 14-day trend
- Stable-4%
Connect your client
One URL. Every client.
Activate the Connector, copy your link, and paste it into the client you already use. 4 capabilities arrive ready to run.
Preview access · not provider authentication
The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Rebar Congestion Check, so you can see the experience inside your AI.
It does not authenticate your account with Rebar Congestion Check. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.
Rebar Congestion Check Connector
You're all set. Choose your MCP client and follow the setup instructions.
https://edge.vinkius.com/vk_preview_dUJEcsazn5O6O13pv55ryIs5vMUKCq5qzTkDE8Kf/mcpClaude Desktop
Follow the steps below to connect in seconds.
- 1In Claude Desktop, open Settings → Connectors.
- 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
- 3Click Add and start a new chat — Rebar Congestion Check capabilities are ready to use.
{
"mcpServers": {
"rebar-congestion-check-mcp": {
"url": "https://edge.vinkius.com/vk_preview_dUJEcsazn5O6O13pv55ryIs5vMUKCq5qzTkDE8Kf/mcp"
}
}
}
Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline
Step-by-step instructions for each client are in the guide. How to connect
Guided setup for Claude? Set up Rebar Congestion Check in Claude and other AIs
Who it's for
Built for the work Rebar Congestion Check owners hand off.
This MCP is built for professionals working in structural and civil engineering who need to validate reinforcement layouts.
- 01
Structural Engineer
Uses the MCP to validate that reinforcement designs are buildable.
- 02
Civil Engineer
Uses the capability to check if concrete placement is feasible for a given cage design.
- 03
Construction Manager
Uses the congestion scores to identify potential pour risks on site.
FAQ
Questions Rebar Congestion Check owners ask.
- 01
What can this MCP do for structural design?
It allows your AI client to evaluate reinforcement density, check for aggregate passage, and ensure mechanical vibrators can access the cage.
- 02
How do I use this with Claude or Cursor?
You connect to the Vinkius hosted MCP once, and then you can use it directly within Claude, Cursor, Windsurf, or any other compatible client.
- 03
Can it help prevent honeycombing?
Yes, by checking aggregate passage and vibration access, it helps you identify if a cage is too congested to allow proper concrete placement.
- 04
What is a congestion score?
It is a high-level assessment of reinforcement density used to determine the risk level of a specific section.
- 05
Does this require me to host anything?
No, Vinkius hosts and manages the MCP for you, so it is ready to use as soon as you connect.
- 06
How do I check if my aggregate will fit between the bars?
You can use the check_aggregate_passage capability by providing the bar sizes, section dimensions, and the maximum aggregate diameter.
- 07
Can this capability help prevent concrete honeycombing?
Yes, by using get_congestion_score and evaluate_vibration_access, you can identify if the reinforcement is too crowded for proper concrete consolidation.
- 08
What information is needed for the spacing calculation?
To use calculate_clear_spacing, you need the array of bar diameters, the number of layers, the section width and height, and the clear cover.
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Connect Rebar Congestion Check to Claude, Cursor, ChatGPT & more
