SDKs

Official and community SDKs for the Agent Auth Protocol. The protocol is simple enough to implement from scratch in any language — Ed25519 keypairs, device authorization flow, signed JWTs, and three database tables.

TypeScript

Better Auth plugin (Server)

Full reference implementation of the Agent Auth server as a Better Auth plugin. Drop-in agent identity, registration, device flow, capability management, and session verification.

import { betterAuth } from "better-auth";
import { agentAuth } from "@better-auth/agent-auth";

const auth = betterAuth({
  plugins: [agentAuth()],
});

• Agent registration with Ed25519 key verification
• Device authorization flow for user approval
• Capability management and grant tracking
• Session verification via getAgentSession()
• Lifecycle management (expiry, reactivation, revocation)

View on GitHub →

@auth/agent (Client SDK)

Client SDK for agent runtimes. Manages keypairs, signs requests, handles registration and capability escalation. Ships with tool adapters for Vercel AI SDK, OpenAI, and Anthropic.

npm install @auth/agent

• Ed25519 key generation and management
• JWT signing for every request
• Auto-registration with discovery
• Capability escalation handling
• AI framework tool adapters (Vercel AI SDK, OpenAI, Anthropic)
• Pluggable storage interface

View documentation → · View on GitHub →

@auth/agent-cli (CLI & MCP Server)

Command-line tool and MCP server for managing agents. Exposes all protocol operations as CLI commands and MCP tools.

npm install -g @auth/agent-cli

• All protocol operations as CLI commands
• MCP server mode for AI tool ecosystems
• File-based persistent storage
• Optional private key encryption (AES-256-GCM)
• Environment variable configuration

View CLI docs → · View MCP docs → · View on GitHub →

Python

Coming soon. A Python SDK for the Agent Auth Protocol is in development. It will support both server and client implementations.

Rust Server SDK

Coming soon. A Rust SDK for the Agent Auth Protocol is in development. It will support both server and client implementations.

Go Server SDK

Coming soon. A Go SDK for the Agent Auth Protocol is in development. It will support both server and client implementations.

You can track the progress of the SDKs here.