@spokest/langchain

LangChain memory integration for Spokest Brain. Give your LangChain chains persistent, associative memory powered by the Spokest Brain API.

Install

npm install @spokest/langchain @langchain/core

Usage

import { ChatOpenAI } from '@langchain/openai';
import { ConversationChain } from 'langchain/chains';
import { SpokestMemory } from '@spokest/langchain';

const memory = new SpokestMemory({
  apiKey: 'sk-your-spokest-api-key',
  baseUrl: 'https://brain-api.spokest.com', // optional, this is the default
});

const llm = new ChatOpenAI({ model: 'gpt-4o' });
const chain = new ConversationChain({ llm, memory });

const response = await chain.invoke({ input: 'What did we discuss about the product launch?' });
console.log(response.response);

Configuration

| Parameter | Default | Description | |-----------|---------|-------------| | apiKey | (required) | Your Spokest Brain API key | | baseUrl | https://brain-api.spokest.com | Brain API base URL | | memoryKey | memories | Key used in the chain's memory variables |

How it works

• loadMemoryVariables -- Calls /v1/memory/recall with the current user input to retrieve relevant memories. Returns them formatted as a bulleted list under the configured memoryKey.
• saveContext -- Calls /v1/memory/store with the full conversation turn (user input + assistant output) after each chain invocation.

License

MIT