Browse 6,295 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.

6,295 workflows in Langchain
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Generate vendor negotiation strategies from pricing data with GPT-4 and SendGrid
Quick overview This workflow ingests vendor pricing via a webhook or a weekly schedule, analyzes variance against historical and market benchmarks, uses OpenAI to draft negotiation strategies for high ...
0
Jun 30, 2026
Generate rich character bibles for writers with GPT-4.1 and Google Sheets
Quick overview This workflow accepts character details via webhook or manual trigger, uses OpenAI to generate psychology, backstory, and emotional arc drafts in parallel, then synthesizes them into a ...
2
Jun 30, 2026
Track AI search citations with ChatGPT, Claude, Gemini, Perplexity, Notion and Slack
Quick overview This workflow runs weekly (or manually) to test multiple keyword prompts across ChatGPT, Claude, Gemini, and Perplexity, then analyzes whether your brand is mentioned, stores citation m ...
1
Jun 30, 2026
Audit website SEO with Groq, Google PageSpeed and Google Sheets
Quick overview This workflow audits a submitted website URL by extracting on-page SEO signals from the HTML, pulling Google PageSpeed Insights scores, and using Groq (Llama 3.3 70B) to generate a scor ...
0
Jun 30, 2026
Generate personalized cold email drafts from Google Sheets with Groq and Tavily
Quick overview This scheduled workflow reads leads from Google Sheets, researches each company with Tavily Search, uses Groq (Llama 3.3 70B) to generate a short personalized cold email, and saves the ...
0
Jun 30, 2026
Manage KlickTipp contact tags with GPT-5-mini via chat input
Quick overview This workflow uses an n8n chat trigger, OpenAI (gpt-5-mini), and KlickTipp community nodes to interpret chat instructions and create, apply, or remove tags for an existing KlickTipp con ...
1
Built by KlickTipp KlickTipp
Jun 30, 2026
Enrich KlickTipp contact fields using OpenAI GPT-5.5 and context
Quick Overview This workflow receives an email and a context block, uses OpenAI to extract and validate enrichment details against the existing KlickTipp subscriber record, and then updates approved m ...
1
Built by KlickTipp KlickTipp
Jun 30, 2026
Generate personalized email salutations for KlickTipp contacts with OpenAI
Quick Overview This workflow triggers when a contact is tagged in KlickTipp, uses OpenAI to generate an HTML-ready email salutation with a quality score, and updates the KlickTipp subscriber record wi ...
1
Built by KlickTipp KlickTipp
Jun 30, 2026
Nurture leads from Google Sheets with Gmail, SMS, and OpenRouter AI
Quick overview Automatically nurture leads with AI-personalized email follow-ups (plus optional SMS) across 3 stages triggered hourly, respecting business hours, and fully tracked in Google Sheets. H ...
0
Built by Syed Jawad Syed Jawad
Jun 30, 2026
Classify Salesforce deal complexity and notify sales with Groq and Slack
Quick overview This workflow monitors new Salesforce opportunities, enriches them with related contacts and products, uses Groq-hosted LLM analysis to classify deal complexity, then updates Salesforce ...
0
Jun 30, 2026
Score customer health and churn risk with Salesforce, Gemini, and Gmail
Quick Overview This workflow runs every minute to pull accounts from Salesforce, enrich each customer with order, payment, support, and marketing data via HTTP APIs, analyze the combined profile with ...
0
Jun 30, 2026
Send prioritized forex risk alerts from ForexLive RSS with OpenAI and Slack
Quick Overview This workflow polls the ForexLive RSS feed every five minutes, filters for forex-relevant headlines, uses OpenAI to generate structured risk analysis, deduplicates items in an n8n Data ...
0
Jun 30, 2026
Generate Salesforce opportunity next steps with Gemini and Slack
Quick Overview This workflow runs daily at 10:00 AM to find open Salesforce Opportunities with no Next Step, generates a recommended next action with Google Gemini, posts it to Slack, and updates the ...
4
Jun 30, 2026
Schedule and manage pet clinic visits with WhatsApp, Gemini, and HighLevel
Quick overview Youtube Video: https://youtu.be/81QSPEr5Yio?si=4EeaBFVofW0dK2Z_ This workflow handles pet clinic appointment conversations over WhatsApp, using Google Gemini for replies, Redis for cha ...
0
Built by iamvaar iamvaar
Jun 30, 2026
Run a hotel WhatsApp concierge using Google Gemini and Google Sheets
Quick overview Youtube Video: https://youtu.be/q2vPN9eub1o?si=lSo4c0kQMNQd_Aad This workflow acts as a WhatsApp hotel concierge that looks up guest profiles, reservations, and open service requests i ...
1
Built by iamvaar iamvaar
Jun 30, 2026
Send multi-carrier shipping quotes via WhatsApp with Gemini and ShipEngine
Quick overview Youtube Video: https://youtu.be/jIGBUW_1Sx0?si=BNXzk95soO0Nefan This workflow responds to incoming WhatsApp messages, validates the sender in HighLevel, uses Google Gemini with Redis m ...
4
Built by iamvaar iamvaar
Jun 30, 2026
Answer HR policy and benefits questions with BambooHR, OpenAI and Supabase
Quick Overview This workflow ingests company policy PDFs from BambooHR into a Supabase vector database and provides an employee chat interface that answers policy and benefits questions using OpenAI, ...
0
Jun 30, 2026
Score and advance job applicants with Airtable, Google Workspace and GPT-4o
Quick Overview This workflow collects job applications via an n8n form, stores CVs in Google Drive, logs applicants in Airtable, and uses OpenAI to score CV-to-role fit. Shortlisted candidates receive ...
0
Jun 30, 2026
Answer HR and IT policy questions on Telegram with OpenAI and Postgres PGVector
Quick overview This workflow builds a searchable HR policy knowledge base from a PDF and runs a Telegram helpdesk bot that answers employee questions from that content, handling both text messages and ...
0
Jun 30, 2026
Review Jira ticket quality with OpenRouter GPT and coaching comments
Quick overview This workflow triggers on new Jira Cloud issues (Story, Bug, or Task), uses OpenRouter (OpenAI model) to score ticket quality across five criteria, and posts an automated coaching comme ...
2
Jun 29, 2026