Grantex

Delegated Authorization Protocol for AI Agents

What OAuth 2.0 is to humans, Grantex is to agents.

Docs | Playground | Spec | Dashboard | IETF Draft

What's New in v2.5

• @grantex/gemma: Day-zero Gemma 4 integration — offline consent bundles, < 5ms verification on Raspberry Pi, Google ADK adapter
• MCP Auth Server v2.0 GA: OAuth 2.1 + PKCE for any MCP server, managed + self-hosted modes, Bronze/Silver/Gold certification program
• @grantex/dpdp: DPDP Act 2023 & EU AI Act compliance module
• Trust Registry: Public DID verification registry — grantex.dev/registry
• grantex verify: Token inspection CLI — no account needed
• Anomaly Detection: 10 built-in rules, Slack/PagerDuty/Datadog integration

Try in 30 seconds

npm install @grantex/sdk

import { Grantex, verifyGrantToken } from '@grantex/sdk';
const gx = new Grantex({ apiKey: process.env.GRANTEX_API_KEY });

// 1. Authorize an agent for a user
const auth = await gx.authorize({ agentId: 'agent-123', userId: 'user-456', scopes: ['calendar:read', 'email:send'] });

// 2. Exchange code for a scoped, signed JWT
const { grantToken } = await gx.tokens.exchange({ code: auth.code, agentId: 'agent-123' });

// 3. Verify anywhere — offline, no callback needed
const grant = await verifyGrantToken(grantToken, { jwksUri: 'https://api.grantex.dev/.well-known/jwks.json' });
console.log(grant.scopes); // ['calendar:read', 'email:send']

pip install grantex             # Python
go get github.com/mishrasanjeev/grantex-go  # Go
npm install -g @grantex/cli     # CLI

28 packages across TypeScript, Python, and Go. Integrations for Anthropic SDK, LangChain, OpenAI Agents SDK, Google ADK, CrewAI, Vercel AI, AutoGen, MCP, Express.js, FastAPI, and Terraform. 3,604 tests (100% pass rate). Fully self-hostable. Apache 2.0.

... View full README on GitHub