Legal Reasoning Prover Connector for AI agents.
1 live capability
Draft defensible legal memos with verifiable US law citations and IRAC logic.
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Why people use Legal Reasoning Prover
Stop Hallucinations in Legal Memos with Legal Reasoning Prover
Legal Reasoning Prover acts as an automated gatekeeper. It forces the agent to prove its logic before you ever see it. Instead of a generic summary, you get a structured IRAC analysis where every fact is mapped to a rule and every citation is a real Bluebook entry.
What Vinkius changes
Your AI agent stops guessing and starts drafting defensible legal arguments.
Use it from Claude, ChatGPT, Cursor or another AI client you already have.
One account · 5,900+ Connectors
- Real-world use case 01
Wrongful Termination Analysis
An associate asks about a whistleblower claim.
- Real-world use case 02
Contract Enforceability
A user asks about a non-compete.
- Real-world use case 03
Motion to Dismiss
A lawyer drafts a 12(b)(6) argument.
Complete set · 1capability
The complete Legal Reasoning Prover capability set.
These are the exact actions your AI can choose when you ask it to work with Legal Reasoning Prover.
01
1 capability in this set.
Part of 1 available through Legal Reasoning Prover.
- 01 Capability
Validate legal reasoning
Validate_legal_reasoning audits a legal argument to ensure it follows IRAC logic, uses real citations, and identifies the correct jurisdiction. It provides specific feedback on how to fix broken syllogisms or missing counter-arguments.
Set up in minutes
One URL. Then ask Legal Reasoning Prover to work.
Claude and ChatGPT only need the Connector URL. Copy it once, add it in settings, and use Legal Reasoning Prover from the conversation.
Choose your client
Live previewAdvanced clients IDE · CLI
Claude · Web + desktop
Connector URL · ready to paste
Streamable HTTPhttps://edge.vinkius.com/vk_preview_x5QP6bbbIPasqiBCFEkRUDREOoSZbvh26udzVNXF/mcp - Step 01
Open Connectors
In Claude Web or Claude Desktop, open Settings and choose Connectors.
- Step 02
Add the URL
Choose Add custom connector, name it Legal Reasoning Prover, and paste the URL above.
- Step 03
Turn it on in chat
Select +, open Connectors, and enable Legal Reasoning Prover for the conversation.
ChatGPT · Web + desktop
Connector URL · ready to paste
Streamable HTTPhttps://edge.vinkius.com/vk_preview_x5QP6bbbIPasqiBCFEkRUDREOoSZbvh26udzVNXF/mcp - Step 01
Open MCP settings
On desktop, open Settings and MCP servers. On web, open your workspace app or connector settings.
- Step 02
Add the URL
Choose Add server with Streamable HTTP, or create a custom MCP app, then paste the Legal Reasoning Prover URL.
- Step 03
Save and start
Save the connection and enable Legal Reasoning Prover in your conversation. Desktop may ask you to restart once.
Cursor · IDE configuration
Advanced setup
{
"mcpServers": {
"legal-reasoning-prover": {
"url": "https://edge.vinkius.com/vk_preview_x5QP6bbbIPasqiBCFEkRUDREOoSZbvh26udzVNXF/mcp"
}
}
} - Step 01
Open MCP Settings
Press Cmd+Shift+P (macOS) or Ctrl+Shift+P (Windows/Linux) → search "MCP Settings"
- Step 02
Add the server config
Paste the JSON configuration above into the mcp.json file that opens
- Step 03
Save the file
Cursor will automatically detect the new Connector
- Step 04
Start using Legal Reasoning Prover
Open Agent mode in chat and ask: "Using Legal Reasoning Prover, help me...". 1 tools available
VS Code Copilot · IDE configuration
Advanced setup
{
"mcpServers": {
"legal-reasoning-prover": {
"url": "https://edge.vinkius.com/vk_preview_x5QP6bbbIPasqiBCFEkRUDREOoSZbvh26udzVNXF/mcp"
}
}
} - Step 01
Create MCP config
Create a .vscode/mcp.json file in your project root
- Step 02
Add the server config
Paste the JSON configuration above
- Step 03
Enable Agent mode
Open GitHub Copilot Chat and switch to Agent mode using the dropdown
- Step 04
Start using Legal Reasoning Prover
Ask Copilot: "Using Legal Reasoning Prover, help me...". 1 tools available
Windsurf · IDE configuration
Advanced setup
{
"mcpServers": {
"legal-reasoning-prover": {
"url": "https://edge.vinkius.com/vk_preview_x5QP6bbbIPasqiBCFEkRUDREOoSZbvh26udzVNXF/mcp"
}
}
} - Step 01
Open MCP Settings
Go to Settings → MCP Configuration or press Cmd+Shift+P and search "MCP"
- Step 02
Add the server
Paste the JSON configuration above into mcp_config.json
- Step 03
Save and reload
Windsurf will detect the new server automatically
- Step 04
Start using Legal Reasoning Prover
Open Cascade and ask: "Using Legal Reasoning Prover, help me...". 1 tools available
Cline · IDE configuration
Advanced setup
{
"mcpServers": {
"legal-reasoning-prover": {
"url": "https://edge.vinkius.com/vk_preview_x5QP6bbbIPasqiBCFEkRUDREOoSZbvh26udzVNXF/mcp"
}
}
} - Step 01
Open Cline MCP Settings
Click the Connectors icon in the Cline sidebar panel
- Step 02
Add remote server
Click "Add Connector" and paste the configuration above
- Step 03
Enable the server
Toggle the server switch to ON
- Step 04
Start using Legal Reasoning Prover
Ask Cline: "Using Legal Reasoning Prover, help me...". 1 tools available
Claude Code · Terminal command
Advanced setup
claude mcp add legal-reasoning-prover --transport http "https://edge.vinkius.com/vk_preview_x5QP6bbbIPasqiBCFEkRUDREOoSZbvh26udzVNXF/mcp" - Step 01
Install Claude Code
Run npm install -g @anthropic-ai/claude-code if not already installed
- Step 02
Add the Connector
Run the command above in your terminal
- Step 03
Verify the connection
Run claude mcp to list connected servers, or type /mcp inside a session
- Step 04
Start using Legal Reasoning Prover
Ask Claude: "Using Legal Reasoning Prover, show me...". 1 tools are ready
Where the request belongs
Work Legal Reasoning Prover can move forward.
Lawyers who can't risk a hallucination in a filing wake up needing this. It is for the associate who needs to double-check a complex memo or the compliance officer ensuring a policy meets specific state regulations.
Litigation Associate
Validates complex research memos to ensure every case cited is real before they hit the senior partner's desk.
Compliance Officer
Checks if company policies align with specific state and federal regulations without missing jurisdiction-specific nuances.
Legal Researcher
Automates the first pass of an IRAC analysis to ensure the logic holds up before manual refinement.
Build the capability set
Add more capabilities.
Each Connector adds new actions and data without changing how you work.
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OpenLaws
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Bring your own AI
Change the model, client or framework. Keep Legal Reasoning Prover connected.
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Claude -
ChatGPT -
Gemini -
Cursor -
VS Code -
Windsurf -
ZCode -
Cline -
Zed -
Continue -
Kiro -
Roo Code -
Zencoder -
Goose -
Void -
Augment Code -
Amp -
Qodo -
Tabnine -
Pieces -
Sourcegraph Cody -
JetBrains -
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Amazon Q -
Antigravity -
BoltAI -
Raycast -
Jan -
LM Studio -
AnythingLLM -
Open WebUI -
Msty -
Cherry Studio -
LibreChat -
TypingMind -
Chorus -
5ire -
n8n -
LangChain -
LlamaIndex -
CrewAI -
Vercel AI SDK
Before you connect
Questions about Legal Reasoning Prover.
The practical details behind the request, access and result.
Can Legal Reasoning Prover help me avoid fake case citations?
Yes. It identifies fabricated case names and weasel authority, ensuring that every citation your AI client provides is a real, verifiable Bluebook entry.
How does Legal Reasoning Prover ensure my legal analysis is logically sound?
It enforces a strict IRAC structure. This means your agent must show the logical bridge between a legal rule and the specific facts of your case before reaching a conclusion.
Does Legal Reasoning Prover work for state and federal law?
It covers both. It forces your agent to identify specific federal circuits, state statutes, and choice-of-law bases rather than giving generic answers.
Can I use Legal Reasoning Prover to check for ABA compliance?
Yes. It specifically requires the agent to disclose adverse controlling authority, which is a core requirement of ABA Model Rule 3.3(a)(2).
What does Legal Reasoning Prover do about jurisdiction issues?
It eliminates jurisdiction blindness. Your AI client will be forced to name the specific court and governing law for every analysis it performs.
Will Legal Reasoning Prover help me draft specific motions?
It does by requiring a specific procedural remedy. Instead of general advice, it forces the agent to identify the specific motion type and statutory basis needed.
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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