Browse 7,043 n8n workflow templates in the Langchain category. These ready-to-use automations connect apps and services with n8n — no coding required. Click any workflow to explore its nodes and import it directly into n8n.
7,043 workflows
in Langchain
Nodes:
Sort:
Date:
Quick Overview
This workflow is triggered by a webhook, pulls category spend plus supplier and market data via HTTP requests, uses OpenAI to generate a procurement category strategy, writes it into a ...
Quick overview
This workflow monitors a Google Sheets loan application tracker, alerts the team in Slack for SLA breaches, escalates high-value loans by Gmail, sends Gemini-generated status update ema ...
Quick overview
This workflow receives LINE Messaging API webhooks, drafts customer replies with Anthropic Claude using n8n Data Tables for stock and visit availability, and emails the draft to staff i ...
Quick overview
This workflow monitors a Gmail inbox for unread customer feedback, uses OpenAI to triage and deduplicate requests against existing Linear issues, and then creates a new issue, adds a co ...
Quick overview
This workflow collects a product image URL and product name from an n8n form, uses OpenAI Vision to build an ideal UGC creator persona, uses Google Gemini to generate three 12‑second ...
Quick overview
Turn any lead list into cold emails that sound written by hand. AI reads each lead's website, writes the email and a follow-up from your offer brief, and a quality check stops spammy co ...
Quick overview
This workflow runs on a schedule or manually to read unpaid invoices from Google Sheets, checks recent client email history in Gmail, uses Anthropic Claude to decide whether to send or ...
Quick overview
This workflow acts as a WhatsApp AI receptionist: it receives text, voice notes, and photos via WhatsApp Cloud API, transcribes audio and describes images through OpenRouter, then uses ...
Quick overview
This workflow runs weekly to keep an Airtable jobs database up to date by validating or discovering each organisation’s career page with Firecrawl, extracting open roles with OpenAI, ...
Quick overview
This workflow powers a Facebook Messenger chatbot that batches incoming user messages, answers with an OpenRouter chat model using RAG retrieval from a Supabase vector store, and keeps ...
Quick overview
This workflow gives a support agent a Calculator tool and a simulated order lookup tool, so you can compare a correct calculation, a found order and an empty lookup that still reports s ...
Quick overview
This workflow applies a demo refund policy, asks an AI agent to explain the decision, and saves the case and the final decision as custom execution data so you can find the run later. I ...
Quick overview
This workflow shows how a support agent can send a confident refund reply even when the order data behind it is missing or incomplete, and how to catch that with saved executions and a ...
Quick overview
This workflow provides an upload form that analyzes travel photos with Google Gemini, removes all people or only unselected people, then uploads the cleaned images to Google Drive and r ...
Quick overview
This workflow runs every morning to pull open journalist requests via Apify, score each request with OpenAI against your expertise, log all scores to Google Sheets, and send high-scorin ...
Quick overview
This workflow creates a Facebook Messenger chatbot that answers questions using a Supabase vector knowledge base built from PDFs in Google Drive, using OpenRouter for chat responses, Op ...
Quick overview
A lab result routing workflow that notifies the ordering physician by severity, using thresholds you control. Critical results trigger an immediate Slack and SMS alert with acknowledgme ...
Quick overview
For agencies and freelancers who run one AI agent for several paying clients. Each client has a monthly budget, a pause switch and its own instructions in an n8n Data table. A run start ...
Quick Overview
This workflow checks unread Gmail messages every hour, uses Groq-hosted LLM prompts to triage importance and route emails to the right manager, then updates a Notion CRM database, forwa ...
Quick overview
This workflow runs daily, reads your learned kanji and JLPT grammar lists from Google Sheets, uses an AWS Bedrock chat model to generate and proofread a lesson constrained to known kanj ...