How does this MCP calculate my max lift?

It uses established physiological models, including the Epley, Brzycki, and Lombardi formulas, to estimate your one-repetition maximum from submaximal sets.

Can I use this for high rep sets?

The MCP includes a validation capability that flags sets with more than 12 repetitions, as these are considered unreliable for accurate 1RM estimation.

What clients can I use this with?

You can use this MCP with any compatible client, including Claude, Cursor, Windsurf, and VS Code.

Does it provide training intensity zones?

Yes, once it calculates your 1RM, it can provide specific weight targets for various rep ranges.

How do I get RPE values?

You can ask your AI agent to map a specific weight and rep count to an RPE value using the built-in equivalence capability.

How accurate are these 1RM estimates?

Estimates are most accurate when repetitions are 12 or fewer. For higher rep counts, the validate_lift_integrity capability can flag if the estimation may be unreliable.

Can I use this for both kilograms and pounds?

Yes, all capabilities support both 'kg' and 'lbs' units.

RPE stands for Rate of Perceived Exertion. You can use get_rpe_equivalence to estimate how much effort a specific weight and repetition count requires on a standard scale.

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Connect One-Rep Max Calculator (#1) to ChatGPT and Claude

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. Turn submaximal lifts into precise strength profiles.

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 · 3 capabilities

We ship only the actions that matter.

Capability set01 / 01

01-03

3 capabilities in this set.

Part of 3 available through One-Rep Max Calculator.

01
Validate lift integrity
This capability checks if a lift is a valid candidate for 1RM estimation. It flags sets with too many repetitions that would result in inaccurate strength predictions.
02
Calculate 1rm metrics
This capability generates a full strength profile from your lift data. It calculates your estimated 1RM and defines specific training intensity zones for various rep ranges.
03
Get rpe equivalence
This capability maps a specific lift to its estimated Rate of Perceived Exertion. It helps you understand how hard a set felt relative to your maximum capacity.

Real work

What teams actually run

Training Block Planning

Your agent uses 1RM data to set specific weight targets for upcoming hypertrophy or strength phases.

Real-time Intensity Checks

You ask your AI how hard a set felt to ensure you are hitting the correct RPE targets.

Strength Progress Tracking

The AI analyzes your historical lifts to show how your estimated 1RM has changed.

Validation of Training Data

The MCP identifies if a high-rep set is too unreliable to use for strength modeling.

One connector, every AI

One-Rep Max Calculator 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 One-Rep Max Calculator 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

858ms average. Fast in production.

One-Rep Max Calculator is checked daily against the live service.

Daily averagePeak 1061ms

Oct 3Today

Fastest day: 665ms
Slowest day: 1061ms
14-day trend: Improving-16%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 3 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 One-Rep Max Calculator, so you can see the experience inside your AI.

It does not authenticate your account with One-Rep Max Calculator. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

One-Rep Max Calculator Connector

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

Connector linkhttps://edge.vinkius.com/vk_preview_aPKoxSry2XjrT9Eam1RwAIJ89uGLNjyfXKC9BS1r/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 — One-Rep Max Calculator capabilities are ready to use.

Configuration · claude_desktop_config.jsonCopy

{
  "mcpServers": {
    "one-rep-max-calculator-1-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_aPKoxSry2XjrT9Eam1RwAIJ89uGLNjyfXKC9BS1r/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 One-Rep Max Calculator in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work One-Rep Max Calculator owners hand off.

Strength athletes and coaches who need precise data from their training logs.

01
Strength Coaches
They hand off training logs to the AI to quickly generate intensity prescriptions for clients.
02
Powerlifters
They use the AI to estimate their maxes and plan training blocks without testing heavy singles.
03
Data-Driven Athletes
They feed their workout history to the AI to track strength progression over time.

FAQ

Questions One-Rep Max Calculator owners ask.

01
How does this MCP calculate my max lift?
It uses established physiological models, including the Epley, Brzycki, and Lombardi formulas, to estimate your one-repetition maximum from submaximal sets.
02
Can I use this for high rep sets?
The MCP includes a validation capability that flags sets with more than 12 repetitions, as these are considered unreliable for accurate 1RM estimation.
03
What clients can I use this with?
You can use this MCP with any compatible client, including Claude, Cursor, Windsurf, and VS Code.
04
Does it provide training intensity zones?
Yes, once it calculates your 1RM, it can provide specific weight targets for various rep ranges.
05
How do I get RPE values?
You can ask your AI agent to map a specific weight and rep count to an RPE value using the built-in equivalence capability.
06
How accurate are these 1RM estimates?
Estimates are most accurate when repetitions are 12 or fewer. For higher rep counts, the validate_lift_integrity capability can flag if the estimation may be unreliable.
07
Can I use this for both kilograms and pounds?
Yes, all capabilities support both 'kg' and 'lbs' units.
08
What is RPE?
RPE stands for Rate of Perceived Exertion. You can use get_rpe_equivalence to estimate how much effort a specific weight and repetition count requires on a standard scale.

Explore

More in Sports Science

Connect One-Rep Max Calculator 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.

01-03

Validate lift integrity

Calculate 1rm metrics

Get rpe equivalence

What teams actually run

Training Block Planning

Real-time Intensity Checks

Strength Progress Tracking

Validation of Training Data

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

One-Rep Max Calculator Connector

Claude Desktop

Strength Coaches

Powerlifters

Data-Driven Athletes

How does this MCP calculate my max lift?

Can I use this for high rep sets?

What clients can I use this with?

Does it provide training intensity zones?

How do I get RPE values?

How accurate are these 1RM estimates?

Can I use this for both kilograms and pounds?

What is RPE?

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