Identity-Based Auth in 5 Minutes

Add cryptographic identity to your LangChain agents. Replace API keys with verifiable M2M authentication. Zero configuration, zero cascading failures.

603× faster than OAuth

0.36ms auth overhead

Zero cascading failures

STEP 1

Installation

Install the LangChain-xLink integration package via npm:

Terminal

# Install the integration package
npm install @private.me/langchain-xlink

# Or with yarn
yarn add @private.me/langchain-xlink

STEP 2

Add Identity to Your Agent

Replace API key authentication with xLink identity. Three lines of code:

TypeScript

import { LangChainXLinkAgent } from '@private.me/langchain-xlink'
import { OpenAI } from 'langchain/llms/openai'
import { HNSWLib } from 'langchain/vectorstores/hnswlib'

// Create agent with identity
const agent = await LangChainXLinkAgent.quickstart()

// Connect to vector store with identity (no API keys)
const vectorStore = await agent.connect('did:xlink:vectorstore-production')

// Send authenticated request
await agent.send({
  to: vectorStore,
  type: 'similarity_search',
  payload: { query: 'user authentication patterns', k: 5 }
})