@langchain/anthropic
v0.3.7
Published
Anthropic integrations for LangChain.js
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@langchain/anthropic
This package contains the LangChain.js integrations for Anthropic through their SDK.
Installation
npm install @langchain/anthropic @langchain/core
This package, along with the main LangChain package, depends on @langchain/core
.
If you are using this package with other LangChain packages, you should make sure that all of the packages depend on the same instance of @langchain/core.
You can do so by adding appropriate fields to your project's package.json
like this:
{
"name": "your-project",
"version": "0.0.0",
"dependencies": {
"@langchain/anthropic": "^0.0.9",
"@langchain/core": "^0.3.0"
},
"resolutions": {
"@langchain/core": "^0.3.0"
},
"overrides": {
"@langchain/core": "^0.3.0"
},
"pnpm": {
"overrides": {
"@langchain/core": "^0.3.0"
}
}
}
The field you need depends on the package manager you're using, but we recommend adding a field for the common yarn
, npm
, and pnpm
to maximize compatibility.
Chat Models
This package contains the ChatAnthropic
class, which is the recommended way to interface with the Anthropic series of models.
To use, install the requirements, and configure your environment.
export ANTHROPIC_API_KEY=your-api-key
Then initialize
import { ChatAnthropicMessages } from "@langchain/anthropic";
const model = new ChatAnthropic({
apiKey: process.env.ANTHROPIC_API_KEY,
});
const response = await model.invoke(new HumanMessage("Hello world!"));
Streaming
import { ChatAnthropicMessages } from "@langchain/anthropic";
const model = new ChatAnthropic({
apiKey: process.env.ANTHROPIC_API_KEY,
model: "claude-3-sonnet-20240229",
});
const response = await model.stream(new HumanMessage("Hello world!"));
Development
To develop the Anthropic package, you'll need to follow these instructions:
Install dependencies
yarn install
Build the package
yarn build
Or from the repo root:
yarn build --filter=@langchain/anthropic
Run tests
Test files should live within a tests/
file in the src/
folder. Unit tests should end in .test.ts
and integration tests should
end in .int.test.ts
:
$ yarn test
$ yarn test:int
Lint & Format
Run the linter & formatter to ensure your code is up to standard:
yarn lint && yarn format
Adding new entrypoints
If you add a new file to be exported, either import & re-export from src/index.ts
, or add it to the entrypoints
field in the config
variable located inside langchain.config.js
and run yarn build
to generate the new entrypoint.
Publishing
After running yarn build
, publish a new version with:
$ npm publish