Bring Authorization
to Cursor
Learn how to connect Permit.io to Cursor and start using 18 AI agent tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code.
GDPR Free for SubscribersCompatible with every major AI agent and IDE
Gemini
What is the Permit.io MCP Server?
Connect your Permit.io account to any AI agent to manage your application's authorization layer through natural language. This server allows you to evaluate permissions, manage your authorization schema, and handle user facts without touching code.
What you can do
- Policy Evaluation — Instantly check if a user is permitted to perform specific actions on resources using the
check_permissiontool. - Schema Management — Create resources, define roles, and assign permissions dynamically to build RBAC or ReBAC (Relationship-Based Access Control) structures.
- Fact Management — Provision users and tenants directly into your authorization environment to keep your permission data in sync.
- AuthZen Compatibility — Use standardized AuthZen evaluation tools for interoperable access control checks.
- ReBAC Relations — Define complex relationships between resources to handle hierarchical or ownership-based permissions.
How it works
- Subscribe to this server
- Enter your Permit.io API Key (and optionally your PDP URL)
- Start managing your authorization policies from Claude, Cursor, or any MCP-compatible client
Who is this for?
- Developers — Quickly test authorization logic or provision test users and roles without leaving the IDE.
- Security Engineers — Audit and update access control policies through a conversational interface.
- Product Managers — Define new feature permissions and roles as part of the product requirements workflow.
Built-in capabilities (18)
Assign permissions to a role
Assign a role to a user in a tenant
AuthZen Access Evaluation
AuthZen Action Search
AuthZen Bulk Evaluations
AuthZen Resource Search
AuthZen Subject Search
Bulk assign roles (max 2000)
Bulk create tenants (max 2000)
Bulk create users (max 3000)
Bulk create relationship tuples (max 1000)
Check if a user is permitted to perform an action on a resource
Create a ReBAC relation between resources
Create a ReBAC relationship tuple
Create a new resource in the schema
Create a new role in the schema
Create a new tenant fact
Create a new user fact
Why Cursor?
Cursor's Agent mode turns Permit.io into an in-editor superpower. Ask Cursor to generate code using live data from Permit.io and it fetches, processes, and writes. all in a single agentic loop. 18 tools appear alongside file editing and terminal access, creating a unified development environment grounded in real-time information.
- —
Agent mode turns Cursor into an autonomous coding assistant that can read files, run commands, and call MCP tools without switching context
- —
Cursor's Composer feature can generate entire files using real-time data fetched through MCP. no copy-pasting from external dashboards
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MCP tools appear alongside built-in tools like file reading and terminal access, creating a unified agentic environment
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VS Code extension compatibility means your existing workflow, keybindings, and extensions all work alongside MCP tools
Permit.io in Cursor
Permit.io and 4,000+ other MCP servers. One platform. One governance layer.
Teams that connect Permit.io to Cursor through Vinkius don't need to source, host, or maintain individual MCP servers. Every tool call runs inside a hardened runtime with credential isolation, DLP, and a signed audit chain.
Raw MCP | Vinkius | |
|---|---|---|
| Server catalog | Find and host yourself | 4,000+ managed |
| Infrastructure | Self-hosted | Sandboxed V8 isolates |
| Credential handling | Plaintext in config | Vault + runtime injection |
| Data loss prevention | None | Configurable DLP policies |
| Kill switch | None | Global instant shutdown |
| Financial circuit breakers | None | Per-server limits + alerts |
| Audit trail | None | Ed25519 signed logs |
| SIEM log streaming | None | Splunk, Datadog, Webhook |
| Honeytokens | None | Canary alerts on leak |
| Custom domains | Not applicable | DNS challenge verified |
| GDPR compliance | Manual effort | Automated purge + export |
Why teams choose Vinkius for Permit.io in Cursor
The Permit.io 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. All 18 tools execute in hardened sandboxes optimized for native MCP execution.
Your AI agents in Cursor only access the data you authorize, with DLP that blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade infrastructure, zero maintenance.
* 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
How Vinkius secures
Permit.io for Cursor
Every tool call from Cursor to the Permit.io MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.
Frequently asked questions
How do I check if a specific user has permission to access a resource?
Use the check_permission tool. You need to provide the user identifier, the action (e.g., 'read'), and the resource object (including type and tenant). The agent will query your PDP and return the authorization decision.
Can I create new roles and assign permissions to them using this server?
Yes. You can use create_role to define a new role in your schema and then use assign_permissions_to_role to specify exactly what that role is allowed to do within a project and environment.
Does this integration support AuthZen standards?
Yes, it includes several tools like authzen_access_evaluation and authzen_bulk_evaluations to perform authorization checks following the AuthZen specification.
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.
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.
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.
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.
Tools not appearing in Cursor
Ensure you are in Agent mode (not Ask mode). MCP tools only work in Agent mode.
Server shows as disconnected
Check Settings → Features → MCP and verify the server status. Try clicking the refresh button.
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