Browse 7,110 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.

7,110 workflows in Langchain
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Handle Spanish-speaking vet clinic bookings with GPT-4o, Sheets, Calendar and Gmail
Overview Meet Maria, a sophisticated AI Booking Agent designed for Veterinary Clinics (but easily adaptable to any service business). This workflow transforms a simple chat interface into a full-scale ...
1
Mar 04, 2026
Send personalized SaaS welcome emails with Stripe, Pinecone, GPT-4o, and Gmail
Who it's for SaaS founders and developers who want to automate their customer onboarding experience from payment to welcome email, without any manual work. How it works A Stripe Trigger listens for ...
1
Built by Ruth Aju Ruth Aju
Mar 04, 2026
Production AI Playbook: Deterministic Steps & AI Steps (5 of 5)
The full end-to-end workflow that chains all patterns together. This template processes customer feedback from intake to team routing, with normalization, validation, native guardrails, AI classificat ...
1
Mar 04, 2026
Production AI Playbook: Deterministic Steps & AI Steps (4 of 5)
Protect your workflows with n8n's native Guardrails node, placed before and after your AI step. The input guardrails catch jailbreak attempts and PII before they reach your model. The output guardrail ...
13
Mar 04, 2026
Production AI Playbook: Deterministic Steps & AI Steps (3 of 5)
Combine AI classification with confidence-based routing and category-based fan-out. This template classifies incoming support tickets, routes them by confidence level, and shows an example of how to f ...
0
Mar 03, 2026
Production AI Playbook: Deterministic Steps & AI Steps (2 of 5)
Validate AI-generated outputs before your workflow acts on them. This template sends a support ticket through AI classification, parses the JSON response, and checks that categories, urgency levels, a ...
0
Mar 03, 2026
Production AI Playbook: Human Oversight (Exercise 3)
Route AI-generated content to reviewers on Slack or email, with automatic escalation if nobody responds. This template demonstrates a full multi-channel review workflow with timeout handling. What yo ...
0
Mar 03, 2026
Production AI Playbook: Human Oversight (Exercise 2)
Gate high-risk AI actions behind human approval. This template shows how to prevent an AI agent from executing sensitive operations (like sending contracts) without a human signing off first. What yo ...
0
Mar 03, 2026
Production AI Playbook: Human Oversight (Exercise 1)
Review AI-drafted customer responses before they go out. This template sets up a chat-based approval flow where an AI agent drafts a reply and a human reviewer approves or rejects it, all within the n ...
0
Mar 03, 2026
Monitor workflow errors via n8n API with Gemini analysis and Telegram alerts
Monitor n8n Workflow Errors with AI Diagnosis & Instant Telegram Alerts This n8n template automatically catches errors from any workflow on your instance, analyzes them with Google Gemini AI, and d ...
Forward Zoho Mail emails to Gmail with Gemini AI analysis and Telegram digest
Smart email forwarder Zoho mail to Gmail with attachment, analysis by AI agent This n8n template automatically monitors a Zoho Mail inbox, analyzes every incoming email with Google Gemini AI, then fo ...
Re-engage event participants from HubSpot with Gemini and email outreach
Event Alumni Re-engager: HubSpot → Gemini → Personalized Outreach Who is this for? Event marketers and conference organizers who want to reactivate past attendees with AI-personalized emails at ...
0
Built by Milo Bravo Milo Bravo
Mar 03, 2026
Enrich event registrations with HubSpot, Clearbit, LinkedIn and Gemini AI
Event Registration + Auto-Enrichment Intelligence Who is this for? Event organizers, conference planners, and marketing teams fighting registration drop-off who want 4-field forms with LinkedIn-lev ...
0
Built by Milo Bravo Milo Bravo
Mar 03, 2026
Generate conference synthetic personas with Slack, Gemini and Salesforce
Conference Synthetic Personas: Slack → Gemini → CRM Insights Who is this for? Event strategists, conference organizers, and marketing teams planning content/networking who want to interview rea ...
0
Built by Milo Bravo Milo Bravo
Mar 03, 2026
Creator sponsorship and brand deals CRM
This n8n template automates the entire sponsorship pipeline for content creators by combining Gmail inbox monitoring, AI-powered deal classification, Notion CRM logging, and automated follow-up remind ...
47
Mar 03, 2026
Generate B2B lead magnet articles with AI deep research and Google Docs
Who is this for? This workflow is built for B2B marketers, consultants, founders, and agency owners who need to produce high-quality, research-backed thought leadership content — without spending h ...
1
Mar 03, 2026
Moderate Facebook group posts with OpenAI, Slack, and Airtable
Facebook Group Auto-Moderation This workflow automatically monitors Facebook Group posts, analyzes them using AI, detects policy violations, logs incidents, notifies moderators and automatically hide ...
0
Mar 03, 2026
Summarize QA testing news and send Telegram updates with Gemini and OpenAI
🧠 AI-Powered QA News Feed Who this workflow is for QA Engineers, SDETs, and automation enthusiasts who want to stay updated with the latest testing news without manually monitoring multiple blogs ...
0
Mar 03, 2026
Match Zoho CRM contacts to buyer personas using LinkedIn, Phantombuster and OpenAI
Zoho CRM - Buyer Persona Matcher This workflow automates the process of identifying buyer personas and generating personalized sales outreach. It triggers via a Zoho CRM Webhook when a deal is update ...
0
Mar 03, 2026
Read, analyze, and auto-reply to Gmail emails with OpenAI, Slack, and Sheets
A fully automated, AI-powered email assistant built in n8n that reads incoming emails, understands their intent and sentiment, classifies them by category, drafts intelligent context-aware replies, an ...
0
Mar 03, 2026