Integrate OpenFGA (Fine-Grained Auth) with Claude, Cursor, Chatbots & AI Agents MCP Server

Q: How can I check if a specific user has access to a resource?

You can use the check_relation tool. Provide the store ID and the relationship details (user, relation, and object) to get an immediate boolean response on whether the access is permitted.

Manage fine-grained authorization with OpenFGA — create stores, define authorization models, and manage relationship tuples directly from your AI agent.

GDPR Free for Subscribers

Compatible with every major AI agent and IDE

Claude

ChatGPT

Cursor

Gemini

Windsurf

VS Code

JetBrains

Vercel

+ other MCP clients

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

Security & Code Integrity Audit

Every tool in the OpenFGA (Fine-Grained Auth) MCP Server is continuously audited by the Vinkius Security Engine. We guarantee zero-trust payload isolation, strict data boundaries, and deterministic execution for enterprise-grade AI agents.

FScore: 3.6

How Vinkius protects your data

Is there a risk of the AI "going crazy" and deleting important company data?

No. With Vinkius, the AI operates on "rails". It can only make the exact moves you authorized in the tool's settings. It cannot invent routes, access other networks in your company, or decide to delete random files. If the action isn't in the approved catalog, the attempt is blocked instantly.

Can I audit what my AI agents are doing with this integration?

Yes, Vinkius provides an immutable, HMAC-chained audit log. Every tool execution, payload, and response is tracked in real-time on your dashboard, giving you complete visibility into your agent's actions.

How can I check if a specific user has access to a resource?

You can use the check_relation tool. Provide the store ID and the relationship details (user, relation, and object) to get an immediate boolean response on whether the access is permitted.

Does the AI train on my tools or API data?

No. Vinkius enforces a strict Zero-Retention policy. Your data simply passes through our secure servers to complete the requested action and is instantly forgotten. Nothing you do here is ever stored, logged, or used to train any artificial intelligence.

OpenFGA (Fine-Grained Auth) Capabilities for AI Assistants

This integration supports direct MCP execution, enabling your chatbots to query and modify data within these specific environments.

Cursor Copilot for authorization

Add authorization functionality to your custom chatbots. The OpenFGA (Fine-Grained Auth) MCP handles the payload formatting required for ChatGPT and Claude to interface with developer tools endpoints.

Autonomous rebac Strategies

The OpenFGA (Fine-Grained Auth) integration allows Cursor and ChatGPT to securely fetch rebac data. It handles the API requests required for developer tools operations.