Permit.io Has a Free API — Heres How to Add Fine-Grained Authorization to Any App

Permit.io provides fine-grained authorization — RBAC, ABAC, ReBAC — through a simple API. Define who can do what, check permissions with one API call. Why Permit.io? RBAC + ABAC + ReBAC : All authorization models Policy as code : OPA/Cedar policies Real-time : Changes propagate instantly SDKs : Every major language No-code UI : Non-developers manage permissions Audit logs : Track every permission check Free tier : 1,000 MAUs Install SDK npm install permitio Setup import { Permit } from ' permitio ' ; const permit = new Permit ({ pdp : ' https://cloudpdp.api.permit.io ' , token : ' permit_key_xxx ' , }); Check Permission const allowed = await permit . check ( ' user-123 ' , ' read ' , ' document ' ); if ( allowed ) { // User can read documents } else { // Access denied } Express Middleware function authorize ( action : string , resource : string ) { return async ( req , res , next ) => { const allowed = await permit . check ( req . user . id , action , resource ); if ( ! allowed ) retur