How does this MCP stop AI hallucinations?

It uses a structured reflection process that checks every citation against Bluebook standards and verifies that the legal conclusion follows logically from the stated rule and facts.

Which AI clients can use this MCP?

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

Does this replace legal research?

No, it acts as a reasoning auditor that ensures the logic and citations used by your AI agent are structurally sound and follow US legal standards.

What is a 'broken syllogism' in this context?

A broken syllogism occurs when the AI states a legal rule and then jumps to a conclusion without showing how the specific facts satisfy every element of that rule.

Does it follow ABA standards?

Yes, it specifically enforces ABA Model Rule 3.3(a)(2) by requiring the agent to disclose and address directly adverse controlling authority.

Does it verify if cited cases actually exist?

It catches the most common hallucination patterns. placeholder names like 'Smith v. Jones' and 'Doe v. Roe', weasel authority language like 'courts have generally held', and citations that lack proper Bluebook format. It cannot access legal databases to verify every case, but it forces the agent to provide full citation details (party names, reporter, court, year, specific holding). which dramatically reduces fabrication because the agent must commit to verifiable specifics.

Is it only for litigation or does it work for transactional law?

The IRAC framework is most natural for litigation analysis, but the five pivots apply broadly. For transactional work: the 'syllogism' becomes 'does the contract structure achieve the stated objective?', 'authority' becomes 'is the statutory basis for this structure valid?', 'jurisdiction' becomes 'which state law governs this agreement?', and 'remedy' becomes 'what happens if the counterparty breaches?' The reasoning validation is universal. the domain language adapts.

Does it generate legal advice?

No. Legal Reasoning Prover generates zero content. It validates the STRUCTURE of legal reasoning. whether the argument follows IRAC, whether citations are properly formed, whether jurisdiction is identified, whether counter-arguments are addressed. The agent does the legal analysis; the capability proves whether that analysis is structurally sound. It is a reasoning quality gate, not a legal advisor.

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Connect Legal Reasoning Prover 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. Force your AI to write legally sound, verifiable memos.

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 · 1 capability

We ship only the actions that matter.

Capability set01 / 01

01

1 capability in this set.

Part of 1 available through Legal Reasoning Prover.

01
Validate legal reasoning
This capability audits legal arguments to ensure they follow IRAC structure, use real Bluebook citations, and include specific jurisdictional and procedural remedies.

Real work

What teams actually run

Memo Auditing

Run an AI-generated legal memo through the MCP to catch fabricated citations or broken logic.

Jurisdiction Verification

Check if an agent's analysis correctly applies the Erie doctrine or specific circuit standards.

Counter-Argument Generation

Force an agent to find the strongest opposing position to prepare for litigation.

Remedy Planning

Convert vague legal conclusions into specific procedural motions or statutory requests.

Automate a task

Put Legal Reasoning Prover to work on one thing.

Step-by-step automations your AI runs through this Connector: the workflow, the prompts to start with, and the exact capabilities behind each move.

One connector, every AI

Legal Reasoning Prover 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 Legal Reasoning Prover 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

899ms average. Fast in production.

Legal Reasoning Prover is checked daily against the live service.

Daily averagePeak 1069ms

Oct 3Today

Fastest day: 695ms
Slowest day: 1069ms
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. 1 capability arrives 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 Legal Reasoning Prover, so you can see the experience inside your AI.

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

Legal Reasoning Prover Connector

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

Connector linkhttps://edge.vinkius.com/vk_preview_x5QP6bbbIPasqiBCFEkRUDREOoSZbvh26udzVNXF/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 — Legal Reasoning Prover capabilities are ready to use.

Configuration · claude_desktop_config.jsonCopy

{
  "mcpServers": {
    "legal-reasoning-prover-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_x5QP6bbbIPasqiBCFEkRUDREOoSZbvh26udzVNXF/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 Legal Reasoning Prover in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Legal Reasoning Prover owners hand off.

Legal professionals and researchers who use AI to draft memos, briefs, or case summaries.

01
Attorneys
Use it to audit AI-generated drafts for hallucinations and structural errors.
02
Paralegals
Use it to ensure research memos follow strict IRAC and Bluebook standards.
03
Legal Researchers
Use it to verify that the logic in an agent's analysis actually follows the cited rules.

FAQ

Questions Legal Reasoning Prover owners ask.

01
How does this MCP stop AI hallucinations?
It uses a structured reflection process that checks every citation against Bluebook standards and verifies that the legal conclusion follows logically from the stated rule and facts.
02
Which AI clients can use this MCP?
You can use this with any MCP-compatible client, including Claude, Cursor, and Windsurf.
03
Does this replace legal research?
No, it acts as a reasoning auditor that ensures the logic and citations used by your AI agent are structurally sound and follow US legal standards.
04
What is a 'broken syllogism' in this context?
A broken syllogism occurs when the AI states a legal rule and then jumps to a conclusion without showing how the specific facts satisfy every element of that rule.
05
Does it follow ABA standards?
Yes, it specifically enforces ABA Model Rule 3.3(a)(2) by requiring the agent to disclose and address directly adverse controlling authority.
06
Does it verify if cited cases actually exist?
It catches the most common hallucination patterns. placeholder names like 'Smith v. Jones' and 'Doe v. Roe', weasel authority language like 'courts have generally held', and citations that lack proper Bluebook format. It cannot access legal databases to verify every case, but it forces the agent to provide full citation details (party names, reporter, court, year, specific holding). which dramatically reduces fabrication because the agent must commit to verifiable specifics.
07
Is it only for litigation or does it work for transactional law?
The IRAC framework is most natural for litigation analysis, but the five pivots apply broadly. For transactional work: the 'syllogism' becomes 'does the contract structure achieve the stated objective?', 'authority' becomes 'is the statutory basis for this structure valid?', 'jurisdiction' becomes 'which state law governs this agreement?', and 'remedy' becomes 'what happens if the counterparty breaches?' The reasoning validation is universal. the domain language adapts.
08
Does it generate legal advice?
No. Legal Reasoning Prover generates zero content. It validates the STRUCTURE of legal reasoning. whether the argument follows IRAC, whether citations are properly formed, whether jurisdiction is identified, whether counter-arguments are addressed. The agent does the legal analysis; the capability proves whether that analysis is structurally sound. It is a reasoning quality gate, not a legal advisor.

Explore

More in Productivity

Connect Legal Reasoning Prover 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

Validate legal reasoning

What teams actually run

Memo Auditing

Jurisdiction Verification

Counter-Argument Generation

Remedy Planning

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

Legal Reasoning Prover Connector

Claude Desktop

Attorneys

Paralegals

Legal Researchers

How does this MCP stop AI hallucinations?

Which AI clients can use this MCP?

Does this replace legal research?

What is a 'broken syllogism' in this context?

Does it follow ABA standards?

Does it verify if cited cases actually exist?

Is it only for litigation or does it work for transactional law?

Does it generate legal advice?

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