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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Generate SEO-friendly robots.txt with OpenAI and Google Drive
Quick overview This workflow runs manually to check a website’s existing robots.txt, detect the site’s CMS from the homepage HTML using OpenAI, and generate an optimized robots.txt (including the ...
2
Jul 01, 2026
Route patients to the best nearby hospital using Google Maps, GPT-4.1 and Twilio
Quick overview This workflow accepts emergency location requests (or runs on a 5-minute schedule), finds and ranks nearby hospitals/clinics using Google Places, capacity data, and Google Distance Matr ...
0
Jul 01, 2026
Validate startup ideas and generate business plans with Claude and SendGrid
Quick overview This workflow receives a startup idea via webhook, uses Anthropic Claude to expand it, run market research, competitor analysis, and demand validation, then generates a structured busin ...
1
Jul 01, 2026
Triage Typeform survey feedback with GPT-4o-mini, Slack, Gmail, and Sheets
Quick overview This workflow triggers on new Typeform survey responses, uses OpenAI GPT-4o-mini to classify sentiment and draft reply emails, routes negative feedback through a Slack human-approval lo ...
0
Jul 01, 2026
Draft personalized cold emails from Google Sheets with Apify and GPT-4o mini
Quick overview This workflow reads pending medical or dental practice leads from Google Sheets, scrapes each practice website with Apify, uses OpenAI (gpt-4o-mini) to identify conversion gaps, and dra ...
0
Built by Jainam Jain Jainam Jain
Jul 01, 2026
Send AI market briefings to email and Discord with AlphaAI and GPT-4
Quick Overview This workflow runs every 15 minutes to fetch AlphaAI’s trending market news, filter for new high-relevance, ticker-linked stories, and post them to a Discord channel via webhook as ri ...
1
Built by AlphaAI AlphaAI
Jul 01, 2026
Research Reddit trends and publish LinkedIn posts with Gemini and PostPeer
Quick overview This workflow runs daily, scrapes a selected subreddit with Apify, researches sources via Brave Search and Jina Reader, and uses Eden AI (DeepSeek) plus Google Gemini to draft a LinkedI ...
0
Jun 30, 2026
Review GitHub pull requests with Mistral and send decisions to Slack
Quick overview This workflow receives GitHub webhook events for pull requests, pushes, and branch/tag creates, filters out actions from the repo owner, and posts alerts to Slack (optionally Discord). ...
0
Jun 30, 2026
Triage and retry failed workflow executions with Anthropic, Jira and OpenTelemetry
Quick overview This workflow triggers on n8n execution errors, uses Anthropic (Claude) to classify the failure as transient or logic, and then either retries the failed execution via the n8n API with ...
0
Jun 30, 2026
Monitor AI search citations and competitors with OpenAI, Google Sheets, and Gmail
Quick overview This workflow runs weekly to test whether fairyfrills.in is cited in OpenAI answers to 15 shopping queries, logs citation details to Google Sheets, and emails a weekly HTML visibility r ...
26
Built by Rahul Joshi Rahul Joshi
Jun 30, 2026
Monitor AI brand visibility and GEO gaps with OpenAI, Gmail and Slack
Quick Overview This workflow runs daily to test whether Fairy Frills appears in AI shopping recommendations by querying OpenAI with 10 brand-focused questions (with and without web search), extracting ...
58
Built by Rahul Joshi Rahul Joshi
Jun 30, 2026
Predict sprint slip risk in Jira with OpenAI via OpenRouter and Slack alerts
Quick Overview This workflow runs on a weekday morning schedule (or manually) to pull the active Jira sprint and its issues, compute sprint health metrics, use an OpenRouter-hosted OpenAI model to ass ...
1
Jun 30, 2026
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