Which RPG systems are supported?

The MCP includes logic for mechanics found in D&D 5e and PF2e, such as specific critical hit rules.

Can I use this with Claude?

Yes, you can connect this MCP to any compatible client including Claude, Cursor, and Windsurf.

Does it handle elemental damage?

Yes, the capability can evaluate modified damage by applying elemental resistances or vulnerabilities.

How does it calculate encounter success?

It uses the calculate_encounter_probability capability to simulate multi-attack distributions against specific enemy HP.

Do I need to host this myself?

No, Vinkius hosts and manages the MCP for you. You just connect your client and it is ready to use.

What damage expressions can I parse?

You can use standard dice notation such as 1d8+4 slashing or 2d6+3 fire. The engine parses the quantity, die type, modifier, and damage type.

How do critical hits work?

The engine supports D&D_5E (doubling dice) and PF2E (doubling the final result) rules. You can specify these using the critRule parameter.

Can I calculate the chance of killing a boss?

Yes, by using calculate_encounter_probability, you can input your attack damage, number of attacks, and the enemy's HP to find your success probability.

An astronaut overseeing a futuristic data hub

Download PDF Markdown Version

Connect RPG Damage Engine 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. Get instant statistical breakdowns for any tabletop encounter.

Ask AI about this Connector

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.

V8 Isolate01

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.

Kill Switch02

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.

FinOps per User03

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.

Capability set01 / 01

01-04

4 capabilities in this set.

Part of 4 available through RPG Damage Engine.

01
Parse damage expression
This capability breaks down a raw dice string into its individual components. It identifies the number of dice, the die type, and any flat modifiers.
02
Analyze damage expression
This capability provides the statistical profile of a damage roll. It returns the minimum, maximum, average, and standard deviation for any given expression.
03
Calculate encounter probability
This capability runs simulations to predict the likelihood of success in combat. It calculates the probability of defeating an enemy based on multi-attack distributions.
04
Evaluate modified damage
This capability calculates the final damage output after applying specific combat rules. It factors in modifiers, critical hit mechanics, and elemental resistances.

Real work

What teams actually run

Encounter Balancing

A GM uses the probability capability to see if a monster's HP is high enough to survive a party's average damage output.

Tactical Decision Making

A player checks the modified damage of a spell against a resistant enemy before committing a resource.

Weapon Testing

A designer compares the statistical spread of different weapon types to ensure fair progression.

Critical Hit Analysis

The AI evaluates how advantage or specific crit rules change the expected damage of an attack.

One connector, every AI

RPG Damage Engine 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.

Building your own app? The connector is yours to use.

You don't need a client to put RPG Damage Engine 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

668ms average. Fast in production.

RPG Damage Engine is checked daily against the live service.

Daily averagePeak 897ms

Oct 3Today

Fastest day: 546ms
Slowest day: 897ms
14-day trend: Slowing+6%

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 RPG Damage Engine, so you can see the experience inside your AI.

It does not authenticate your account with RPG Damage Engine. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

RPG Damage Engine Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_hz932Ib1LJJakHHEMIEyubRH9IOy21AYqlM3yoAY/mcp

Claude 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 — RPG Damage Engine capabilities are ready to use.

Configuration · claude_desktop_config.jsonCopy

{
  "mcpServers": {
    "rpg-damage-engine-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_hz932Ib1LJJakHHEMIEyubRH9IOy21AYqlM3yoAY/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 RPG Damage Engine in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work RPG Damage Engine owners hand off.

This MCP is built for anyone running or playing complex tabletop RPGs who needs fast, accurate combat math.

01
Game Masters
They hand off encounter balancing and boss HP calculations to the AI.
02
Players
They use it to quickly calculate modified damage during high-stakes combat.
03
Game Designers
They use the statistical distributions to test weapon and spell balance.

FAQ

Questions RPG Damage Engine owners ask.

01
Which RPG systems are supported?
The MCP includes logic for mechanics found in D&D 5e and PF2e, such as specific critical hit rules.
02
Can I use this with Claude?
Yes, you can connect this MCP to any compatible client including Claude, Cursor, and Windsurf.
03
Does it handle elemental damage?
Yes, the capability can evaluate modified damage by applying elemental resistances or vulnerabilities.
04
How does it calculate encounter success?
It uses the calculate_encounter_probability capability to simulate multi-attack distributions against specific enemy HP.
05
Do I need to host this myself?
No, Vinkius hosts and manages the MCP for you. You just connect your client and it is ready to use.
06
What damage expressions can I parse?
You can use standard dice notation such as 1d8+4 slashing or 2d6+3 fire. The engine parses the quantity, die type, modifier, and damage type.
07
How do critical hits work?
The engine supports D&D_5E (doubling dice) and PF2E (doubling the final result) rules. You can specify these using the critRule parameter.
08
Can I calculate the chance of killing a boss?
Yes, by using calculate_encounter_probability, you can input your attack damage, number of attacks, and the enemy's HP to find your success probability.

Explore

More in Gaming

Connect RPG Damage Engine to Claude, Cursor, ChatGPT & more

Your AI does the work. We keep it safe and sound.

Each Connector runs inside its own sealed environment.

One switch stops every agent. Instantly.

Spending limits that pause instead of surprise.

We ship only the actions that matter.

01-04

Parse damage expression

Analyze damage expression

Calculate encounter probability

Evaluate modified damage

What teams actually run

Encounter Balancing

Tactical Decision Making

Weapon Testing

Critical Hit Analysis

Building your own app? The connector is yours to use.

RPG Damage Engine Connector

Claude Desktop

Game Masters

Players

Game Designers

Which RPG systems are supported?

Can I use this with Claude?

Does it handle elemental damage?

How does it calculate encounter success?

Do I need to host this myself?

What damage expressions can I parse?

How do critical hits work?

Can I calculate the chance of killing a boss?

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