Permit.io | Authorization Infrastructure for Developers

Runtime Access Control for the AI Era.

Fine-grained authorization as a service — for applications, APIs, and AI agents.

Policy as code, a no-code editor, and local PDPs. Used by teams shipping permissions in enterprise, fintech, healthcare, and government.

Shipped by developers at the world's leading products

The Problem

Stop rebuilding permissions in application code

Most products start with a roles table and a pile of if statements. Then tenants show up. Then attributes. Then relationship graphs. Then agents acting on behalf of users.

Fine-grained authorization is infrastructure — RBAC, ABAC, and ReBAC with an audit trail — not a feature you rewrite every quarter.

Role explosion:Static roles cannot express tenancy, ownership, or context without multiplying forever.

Checks in code:if/else authorization cannot be reviewed by security, reused by agents, or proven in an audit.

Missing models:ABAC and ReBAC get bolted on too late, after the roles table has already calcified.

New subjects:Services and AI agents need the same policy as users — not a second permission system.

RBAC, ABAC, and ReBAC. One check API.

Fine-grained authorization is a set of models, not a roles table. Start with RBAC, add attributes when context matters, model relationships when the graph matters. Humans, services, and agents hit the same policy engine.

RBAC

Role-based access

Roles mapped to actions on resource types. Start here, then layer tenancy, conditions, and relationships without changing your check API.

ABAC

Attribute-based access

ReBAC

Relationship-based access

Example policy
“Banker can Approve Loan”

RBAC · Policy UI

When an agent calls a tool, it is still a subject, an action, and a resource. MCP Gateway applies the same RBAC, ABAC, and ReBAC policies at the edge — it does not invent a second permission system.

The Platform

Authorization as infrastructure

Policy UI + policy as code:the whole team can edit permissions; Git still owns the source of truth.

Local PDP:OPA or Cedar in your VPC, updated by OPAL, decisions next to the workload.

Any model:RBAC, ABAC, and ReBAC in one engine — not three products to stitch together.

Any subject:users, services, and agents evaluated with the same check API.

Permit.io is the control, data, and enforcement plane — not a dashboard in front of someone else's PDP. Author policy in the editor or Git, keep users, roles, and relationships in the graph, and enforce every check locally. Same stack for the software you already ship and the agents you add to it.

First-class agents

The same policies follow agents to every tool they call.

Put the MCP Gateway URL in front of an upstream server and enforce the same RBAC, ABAC, and ReBAC graph you already use in APIs and data. One policy plane — session, service, row.

Gateway

Identify the agent, bind human delegation, and authorize each tool call against policy — not a standing API key.

Application

Enforce the same fine-grained policy in APIs and services with a low-latency PDP next to the workload.

Data

Push the decision down to queries, rows, and columns so an allowed tool call still cannot over-read.

The gateway applies the same fine-grained authorization as your APIs — RBAC, ABAC, and ReBAC on each tool call, not a second permission system.

Agent identities

Delegate access. Bind it to intent. Enforce it at runtime.

Agents are first-class subjects in the same policy model. You delegate a human's permissions, scope them with attributes and relationships, and re-check every action — including when prompt injection tries to change the job.

Developer stack

Keep your IdP. Add authorization.

Authentication stays where it is. Permit.io is the missing layer: fine-grained authorization as a service — SDKs, CLI, Terraform, GitOps, and a PDP beside your code.

Works with your identity provider, gateways, APIs, cloud, and policy engines. Managed or self-hosted. Hybrid by design — including when the caller is an agent.

Built for the people who ship

Developers

SDKs, APIs, Terraform, GitOps, and a local PDP. Policy as code you can review in a pull request — including when the subject is an agent.

Architects

One authorization plane across apps, APIs, data, and MCP. RBAC, ABAC, and ReBAC without stitching point products.

Security & IAM

Least privilege, human delegation, decision traces, and a path to AI features that does not bypass the policy you already wrote.

Product & ops

A no-code policy editor, embedded Elements, and approval flows so support and customers can manage access without a deploy.

Guardian agents

Watch the decisions, not just the logs

The full stack

Control, data, and enforcement in one stack

Authorization is more than a yes/no. Permit.io is the control, data, and enforcement plane: you author policy in the editor or Git, users, roles, and relationships live in the graph, and a local PDP enforces every check — from the API call to the row, including the agent tool call in between.

One platform for application permissions and agent permissions. Same models. Same check. Same logs.

Around the decision

Elements, GitOps, and audit in one flow

Embed user management, approval flows, and audit logs in your product. Manage policy in Git. Propagate every decision to the logger you already use.

Enterprise-Ready by Design

Trusted where access control is mission-critical

From regulated workloads to high-scale product platforms, Permit.io is the authorization layer developers put in front of apps, APIs, and agents — without giving up speed, control, or where the PDP runs. Supporting hundreds of millions of identities at sub-50ms latency.

Get started

Never build permissions again

Fine-grained authorization for your application, your APIs, and your agents. RBAC, ABAC, and ReBAC — as a service.

Ship faster —without hiding access control in code.