Browse 6,328 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.

6,328 workflows in Langchain
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Score leads and send WhatsApp proposals with Gemini, HighLevel and Apify
Quick overview Youtube Video Explanation: https://youtu.be/A9IURUQlvQs?si=l5USqTcSmCEBEORP This workflow receives new leads via webhook, enriches them with Apify Google AI Mode, scores them with Goog ...
0
Built by iamvaar iamvaar
Jun 08, 2026
Extract purchase order data to Excel via Telegram using OCR and Google Gemini
Quick Overview This workflow accepts purchase order PDFs or images via Telegram, extracts text using PDF parsing or Tesseract OCR, uses Google Gemini to convert the text into structured JSON, validate ...
1
Built by Ramdoni Ramdoni
Jun 08, 2026
Generate freelance proposal PDFs from Tally with GPT-4o and Gmail
Quick Overview This workflow generates a personalized freelance proposal from a Tally form submission, using OpenAI to extract text from screenshots and write the proposal, SerpAPI to pull proposal ex ...
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Built by Ruth Aju Ruth Aju
Jun 08, 2026
Log receipts from Telegram to Google Sheets and query spending with Gemini
Quick Overview This workflow logs receipt photos from Telegram into Google Sheets using Google Gemini for data extraction, and exposes an MCP server tool that lets clients like Claude or ChatGPT query ...
0
Jun 07, 2026
Build and operate n8n workflows from Claude with Gemini and MCP tools
Quick Overview This workflow exposes an MCP server endpoint for Claude Desktop and provides tools to build new n8n workflows from plain-English prompts using Google Gemini, plus tools to list, inspect ...
0
Jun 07, 2026
Create and approve social posts with Google Sheets, Slack and Gemini
Quick Overview This workflow collects a social content brief, generates three strategy angles with Google Gemini and Serper web research, routes human approvals in Slack, then creates post copy plus a ...
0
Jun 07, 2026
Generate and score MVP ideas from Reddit with OpenRouter LLMs
Quick Overview This workflow exposes a webhook that fetches Reddit posts and top comments, uses OpenRouter LLM models to generate structured MVP business ideas, scores and filters them, and returns th ...
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Built by Jesse Lane Jesse Lane
Jun 07, 2026
Repurpose RSS blog posts into social content with OpenAI, Sheets, Gmail and Slack
Quick Overview This workflow runs daily, pulls the latest post from an RSS feed, and uses OpenAI to repurpose it into an SEO blog rewrite, a LinkedIn post, and an X/Twitter thread, then logs the draft ...
1
Jun 07, 2026
Make multi-agent council decisions with OpenAI GPT-5
Quick Overview This workflow runs a manual “AI council” that evaluates a proposal with four OpenAI-powered specialist agents, aggregates their structured perspectives, and has a chairman agent syn ...
2
Jun 07, 2026
Monitor quantum fabrication QA with multi-agent OpenAI GPT-5 and alerts
Quick Overview This workflow runs every 30 minutes and uses OpenAI (GPT-5-mini) to analyze quantum fabrication operations across device performance, process optimization, defect detection, supply chai ...
1
Jun 07, 2026
Send lecture study digests to WhatsApp with WayinVideo, GPT-4o-mini and Twilio
Quick Overview This workflow collects a lecture video URL and student details via an n8n form, summarizes the video with the WayinVideo Summarization API, refines the output into a study digest with O ...
0
Jun 06, 2026
Analyze skill gaps for target jobs with BrowserAct, LinkedIn and GPT-4o-mini
Quick Overview This workflow collects a student’s skills and target role via an n8n Form, scrapes top LinkedIn job postings with BrowserAct, and uses OpenAI GPT-4o-mini to generate a skill gap repor ...
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Built by isaWOW isaWOW
Jun 06, 2026
Enrich Google Sheets leads via LinkedIn, SerpAPI, Claude and Apify
Quick Overview This workflow enriches leads from Google Sheets by finding and validating LinkedIn profile URLs with SerpAPI and Anthropic, then scraping matched profiles with Apify to extract a releva ...
0
Jun 05, 2026
Translate Google Drive videos to Japanese subtitles with AssemblyAI, Gemini and Creatomate
Quick Overview This workflow watches a Google Sheets spreadsheet for new Google Drive video links, sends the video to AssemblyAI for English transcription with Japanese translation, refines the Japane ...
0
Jun 05, 2026
Answer voice queries from a webhook over Google Drive docs using GPT-4o-mini and Supabase
Quick overview Placetel AI – RAG Voice Assistant with Google Drive & Supabase How it works Runs on a daily schedule at 02:00 or via manual start to reindex documents. Lists files from a specified G ...
0
Built by Placetel Placetel
Jun 05, 2026
Groom Nirvana GTD inbox tasks with MCP and OpenAI GPT-5-nano
Quick overview This workflow runs manually to fetch inbox tasks from Nirvana (via its MCP API), uses OpenAI to rewrite each task title and clean up the notes into a consistent GTD format, and updates ...
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Built by Thomas Thomas
Jun 05, 2026
Assign unassigned Jira issues with Airtable and OpenRouter Grok
Quick overview This workflow listens for Jira issue create/update events, finds unassigned issues in a target project, pulls team member data from Airtable plus each member’s open Jira workload, and ...
0
Jun 04, 2026
Monitor and classify brand mentions from Instagram and Google with Gemini
Quick overview This workflow runs daily to find new brand mentions from Instagram hashtags and Google Search via Apify, deduplicates them in an n8n Data Table, classifies each mention with Google Gemi ...
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Built by Apify Apify
Jun 04, 2026
Run a skills-based knowledge chatbot with Google Sheets and GPT-4o-mini
Quick overview This workflow creates a session-based chatbot in n8n Chat that loads “skills” from Google Sheets and uses OpenAI GPT-4o-mini to respond strictly according to the matched skill’s t ...
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Jun 04, 2026
Generate Veo 3 short-form videos from a form using Groq and Google Sheets
Quick overview This workflow collects a video topic via an n8n form, uses Groq to generate a short-form video idea and Veo 3 prompt, logs the content to Google Sheets, generates the video through Vert ...
0
Jun 04, 2026