How to Use the Estimation Prover MCP in Claude Code

Stop failing your deadlines. Run the Estimation Prover MCP Server in Claude Code to force mathematical rigor into your terminal planning.

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Connect Estimation Prover MCP to Claude Code

Create your Vinkius account to connect Estimation Prover to Claude Code and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Estimation Prover with Claude Code

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Claude

Perplexity

Terminal-Native Reality Checks

The `validate_estimation` tool runs directly in your shell to intercept flawed planning. Before you kick off a massive refactor, it forces you to break the work into chunks smaller than 48 hours. You pass your proposed scope through the CLI, and it spits back the exact areas where you are lying to yourself. It maps the unknowns and demands a calculated contingency buffer based on actual math.

Running Precedents in Claude Code

Optimism bias destroys deployment pipelines. This MCP Server requires your headless agent to cite a specific historical precedent for the deployment or migration you are planning. Vague guesses get rejected. The tool forces the agent to document every assumption holding the timeline together. If your infrastructure migration relies on a perfect database sync, that risk gets quantified immediately.

Automated Buffer Application

Nobody likes adding a 60% buffer to a project estimate. The server does it anyway. It evaluates the novelty of your CLI task and applies the Cone of Uncertainty to your timeline. Routine script updates get a 20% tax. Entirely new architectures get hit with the maximum penalty. You get a realistic deadline that actually survives contact with production.

Setup guide

Set up Estimation Prover MCP in Claude Code

Prerequisites

Claude Code CLI installed (npm install -g @anthropic-ai/claude-code)
Active Vinkius subscription with a valid endpoint token

1

Run the add command

Open your terminal and run the command shown on the right. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com. Use --scope user to make it available across all projects.
2

Verify the connection

Start a Claude Code session and type /mcp to list connected servers. You should see estimation-prover-mcp with a green status indicator.
3

Start using tools

Ask Claude Code something like "Check my latest Estimation Prover transactions." It will automatically discover and invoke the available Estimation Prover tools.

Terminal

claude mcp add --transport http estimation-prover-mcp https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

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Prerequisites

Claude Code CLI installed
Active Vinkius subscription with a valid endpoint token

1

Open the config file

Create or edit .mcp.json in your project root for project-level scope, or ~/.claude.json for user-level scope.
2

Add the Estimation Prover MCP

Paste the JSON snippet shown on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Code

Start a new Claude Code session. Type /mcp to confirm the server is connected. The tools will be automatically available in your conversation.

.mcp.json

{
  "mcpServers": {
    "estimation-prover-mcp": {
      "type": "url",
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Estimation Prover. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about Estimation Prover MCP in Claude Code

Run claude mcp add --transport http estimation-prover -- in your terminal. Ensure all flags come before the server name. The config saves to your ~/.claude.json file.

Yes. You can pipe your project specs into the headless agent. The server will evaluate the text and reject the build step if the timeline lacks proper contingency buffers.

Your tasks are too large or you forgot to state your assumptions. The validation logic is strict. Break the work down into two-day units and try the command again.

It throws a validation error with specific feedback. You have to update your scope document to account for the missing historical precedent before the tool gives you a pass.

The infrastructure specs and scope documents you pipe through the CLI hit an isolated sandbox. The server computes the risk variance and drops the memory state entirely. Your proprietary architecture details never touch a database.

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