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OpenFGA (Fine-Grained Auth) MCP Server for CursorGive Cursor instant access to 16 tools to Batch Check Relations, Check Relation, Create Store, and more

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Cursor is an AI-first code editor built on VS Code that integrates LLM-powered coding assistance directly into the development workflow. Its Agent mode enables autonomous multi-step coding tasks, and MCP support lets agents access external data sources and APIs during code generation.

Ask AI about this MCP Server for Cursor

The OpenFGA (Fine-Grained Auth) MCP Server for Cursor is a standout in the Developer Tools category — giving your AI agent 16 tools to work with, ready to go from day one.

Built for AI Agents by Vinkius

Vinkius delivers Streamable HTTP and SSE to any MCP client

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Classic Setup·json
{
  "mcpServers": {
    "openfga-fine-grained-auth": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}
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Vinkius Desktop App

The modern way to manage MCP Servers — no config files, no terminal commands. Install OpenFGA (Fine-Grained Auth) and 4,000+ MCP Servers from a single visual interface.

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OpenFGA (Fine-Grained Auth)
Fully ManagedVinkius Servers
60%Token savings
High SecurityEnterprise-grade
IAMAccess control
EU AI ActCompliant
DLPData protection
V8 IsolateSandboxed
Ed25519Audit chain
<40msKill switch
Stream every event to Splunk, Datadog, or your own webhook in real-time

* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

About OpenFGA (Fine-Grained Auth) MCP Server

Connect your OpenFGA instance to any AI agent to manage Relationship-Based Access Control (ReBAC) through natural conversation. OpenFGA is an open-source fine-grained authorization solution inspired by Google's Zanzibar.

Cursor's Agent mode turns OpenFGA (Fine-Grained Auth) into an in-editor superpower. Ask Cursor to generate code using live data from OpenFGA (Fine-Grained Auth) and it fetches, processes, and writes. all in a single agentic loop. 16 tools appear alongside file editing and terminal access, creating a unified development environment grounded in real-time information.

What you can do

  • Store Management — Create, list, and delete isolated stores to manage authorization data for different environments or applications.
  • Authorization Modeling — Define and retrieve complex authorization models using types and relations to represent your system's permissions.
  • Tuple Management — Write, read, and track changes to relationship tuples that define which users have which relations to specific objects.
  • Relationship Checks — Instantly evaluate whether a user has a specific relation to an object (e.g., 'can user:anne view document:1?').
  • Health Monitoring — Quickly check the status of your OpenFGA instance to ensure high availability.

The OpenFGA (Fine-Grained Auth) MCP Server exposes 16 tools through the Vinkius. Connect it to Cursor in under two minutes — credentials fully managed, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

All 16 OpenFGA (Fine-Grained Auth) tools available for Cursor

When Cursor connects to OpenFGA (Fine-Grained Auth) through Vinkius, your AI agent gets direct access to every tool listed below — spanning authorization, rebac, access-control, and more. Every call runs in a secure, isolated environment with full audit visibility. Beyond a simple connection, you get real-time monitoring of agent activity, enterprise governance, and optimized token usage.

batch

Batch check relations on OpenFGA (Fine-Grained Auth)

Perform multiple checks in one request

check

Check relation on OpenFGA (Fine-Grained Auth)

Check if a user has a relation to an object

create

Create store on OpenFGA (Fine-Grained Auth)

Create a new OpenFGA store

delete

Delete store on OpenFGA (Fine-Grained Auth)

Delete an OpenFGA store

expand

Expand relation on OpenFGA (Fine-Grained Auth)

Expand a relation into a tree

get

Get authorization model on OpenFGA (Fine-Grained Auth)

Get a specific authorization model

get

Get store on OpenFGA (Fine-Grained Auth)

Get OpenFGA store details

health

Health check on OpenFGA (Fine-Grained Auth)

Check OpenFGA server health

list

List authorization models on OpenFGA (Fine-Grained Auth)

List authorization models

list

List objects on OpenFGA (Fine-Grained Auth)

List all objects a user can access

list

List stores on OpenFGA (Fine-Grained Auth)

List all OpenFGA stores

list

List users on OpenFGA (Fine-Grained Auth)

List all users who have a relation to an object

read

Read changes on OpenFGA (Fine-Grained Auth)

Read changes to relationship tuples

read

Read tuples on OpenFGA (Fine-Grained Auth)

Query stored relationship tuples

write

Write authorization model on OpenFGA (Fine-Grained Auth)

Write a new authorization model

write

Write tuples on OpenFGA (Fine-Grained Auth)

Add or delete relationship tuples

Connect OpenFGA (Fine-Grained Auth) to Cursor via MCP

Follow these steps to wire OpenFGA (Fine-Grained Auth) into Cursor. The entire setup takes under two minutes — your credentials stay safe behind Vinkius.

01

Open MCP Settings

Press Cmd+Shift+P (macOS) or Ctrl+Shift+P (Windows/Linux) → search "MCP Settings"
02

Add the server config

Paste the JSON configuration above into the mcp.json file that opens
03

Save the file

Cursor will automatically detect the new MCP server
04

Start using OpenFGA (Fine-Grained Auth)

Open Agent mode in chat and ask: "Using OpenFGA (Fine-Grained Auth), help me...". 16 tools available

Why Use Cursor with the OpenFGA (Fine-Grained Auth) MCP Server

Cursor AI Code Editor provides unique advantages when paired with OpenFGA (Fine-Grained Auth) through the Model Context Protocol.

01

Agent mode turns Cursor into an autonomous coding assistant that can read files, run commands, and call MCP tools without switching context

02

Cursor's Composer feature can generate entire files using real-time data fetched through MCP. no copy-pasting from external dashboards

03

MCP tools appear alongside built-in tools like file reading and terminal access, creating a unified agentic environment

04

VS Code extension compatibility means your existing workflow, keybindings, and extensions all work alongside MCP tools

OpenFGA (Fine-Grained Auth) + Cursor Use Cases

Practical scenarios where Cursor combined with the OpenFGA (Fine-Grained Auth) MCP Server delivers measurable value.

01

Code generation with live data: ask Cursor to generate a security report module using live DNS and subdomain data fetched through MCP

02

Automated documentation: have Cursor query your API's tool schemas and generate TypeScript interfaces or OpenAPI specs automatically

03

Infrastructure-as-code: Cursor can fetch domain configurations and generate corresponding Terraform or CloudFormation templates

04

Test scaffolding: ask Cursor to pull real API responses via MCP and generate unit test fixtures from actual data

Example Prompts for OpenFGA (Fine-Grained Auth) in Cursor

Ready-to-use prompts you can give your Cursor agent to start working with OpenFGA (Fine-Grained Auth) immediately.

01

"List all my OpenFGA stores."

02

"Check if user 'anne' has the 'viewer' relation to 'document:doc1' in store 01H1..."

03

"Create a new OpenFGA store named 'Security-Audit-Logs'."

Troubleshooting OpenFGA (Fine-Grained Auth) MCP Server with Cursor

Common issues when connecting OpenFGA (Fine-Grained Auth) to Cursor through Vinkius, and how to resolve them.

01

Tools not appearing in Cursor

Ensure you are in Agent mode (not Ask mode). MCP tools only work in Agent mode.
02

Server shows as disconnected

Check Settings → Features → MCP and verify the server status. Try clicking the refresh button.

OpenFGA (Fine-Grained Auth) + Cursor FAQ

Common questions about integrating OpenFGA (Fine-Grained Auth) MCP Server with Cursor.

01

What is Agent mode and why does it matter for MCP?

Agent mode is Cursor's autonomous execution mode where the AI can perform multi-step tasks: reading files, editing code, running terminal commands, and calling MCP tools. Without Agent mode, Cursor operates in a simpler ask-and-answer mode that doesn't support tool calling. Always ensure you're in Agent mode when working with MCP servers.
02

Where does Cursor store MCP configuration?

Cursor looks for MCP server configurations in a mcp.json file. You can configure servers at the project level (.cursor/mcp.json in your project root) or globally (~/.cursor/mcp.json). Project-level configs take precedence.
03

Can Cursor use MCP tools in inline edits?

No. MCP tools are only available in Agent mode through the chat panel. Inline completions and Tab suggestions do not trigger MCP tool calls. This is by design. tool calls require user visibility and approval.
04

How do I verify MCP tools are loaded?

Open Settings → Features → MCP and look for your server name. A green indicator means the server is connected. You can also check Agent mode's available tools by clicking the tools dropdown in the chat panel.

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