LangGraph

1. Install the CLI

npm

npm install -g swytchcode

Windows

irm https://cli.swytchcode.com/install.ps1 | iex

macOS / Linux

curl -fsSL https://cli.swytchcode.com/install.sh | sh

Use swy as a shorter alias for swytchcode.

2. Install the packages

JavaScript

npm install @swytchcode/runtime @langchain/core langgraph dotenv

Python

pip install swytchcode-runtime langgraph python-dotenv

3. Initialize Swytchcode and fetch a toolkit

swy init
swy get github

swy init creates .swytchcode/ and tooling.json for the project. swy get github downloads the GitHub integration bundle - the schemas that tools.get reads from in a later step.

4. List available methods

swy list methods

This lists every method from the integrations you’ve downloaded, so you can see what the GitHub bundle exposes before you load tools in the SDK.

5. Enable a tool and connect GitHub

swy add <canonical_id>
swy auth connect github

Copy a canonical ID from swy list methods. For example:

swy add github.issues.create

swy add writes that method into tooling.json so the SDK can execute it. swy auth connect github opens a browser so you can authorize GitHub.

6. Load the tools

JavaScript

import 'dotenv/config';
import { Swytchcode } from '@swytchcode/runtime';
import { LangGraphProvider } from '@swytchcode/runtime/providers/langgraph';

const swx = new Swytchcode(new LangGraphProvider());
const tools = await swx.tools.get({ toolkits: ['github'] });

Python

import os
from dotenv import load_dotenv
from swytchcode_runtime import Swytchcode

load_dotenv()

swx = Swytchcode()
tools = swx.tools.get(toolkits=["github"])

print(f"Loaded {len(tools)} tools")

7. Pass them into LangGraph

JavaScript

// Build your graph with the returned tools and let the agent invoke them.
console.log('LangGraph tools ready:', tools.length);

Python

result = swx.tools.execute("github.pull_requests.list", {
    "params": {"state": "open"},
    "Authorization": f"Bearer {os.getenv('GITHUB_TOKEN')}",
})

print(result)

8. Run the file

Save the example as main.js or main.py, then run the matching command:

JavaScript

node main.js

Python

python main.py

This keeps tool execution inside Swytchcode while the workflow graph stays focused on orchestration.

Example projects

Browse all examples

Weekly Reporting

Agent writes a weekly activity report to Notion and emails it via Resend - no human in the loop.

Lead Qualification

Qualifies inbound leads and creates contacts and deals in HubSpot automatically.

Fintech Compliance

Covers bank account linking (Plaid), KYC (Persona), payments (Dwolla), and policy enforcement in one flow.

Customer Onboarding

Signup flow that creates a HubSpot contact, a Stripe customer, and sends a Resend welcome email.