n8n’s integration nodes connect to 400+ external services spanning six core categories: CRM and marketing platforms (HubSpot, Salesforce, Mailchimp), DevOps and communication tools (GitHub, Slack, PagerDuty), AI and LLM services (OpenAI, Anthropic, LangChain, vector stores), database engines (PostgreSQL, MySQL, Google Sheets), e‑commerce platforms (Shopify, WooCommerce), and customer support systems (Zendesk, Freshdesk). Each node implements a resource‑operation model with native credential management for OAuth2, API keys, and Basic Auth. This catalog organizes every integration by category with key operations and authentication methods [1] [2].

The integration catalog spans six primary categories. Marketing nodes (HubSpot, Salesforce, Mailchimp) provide CRM sync, lead routing, email campaign triggers, and contact enrichment—with HubSpot offering 25+ operations across contacts, deals, companies, and tickets. DevOps nodes (GitHub, Slack, PagerDuty, Datadog) enable CI/CD alerting, incident management, and real‑time notifications, with Slack supporting 30+ operations including Send and Wait for Response for human‑in‑the‑ loop approvals. AI nodes (LangChain package, 80+ specialized nodes) orchestrate LLM providers, vector stores, embeddings, memory, and tool‑calling agents. Database nodes (PostgreSQL, MySQL, Google Sheets, Airtable) offer full CRUD plus upsert, execute‑SQL, and batch processing. E‑commerce nodes (Shopify, WooCommerce) trigger on order events, manage inventory, and sync fulfillment. Support nodes (Zendesk, Freshdesk) create, update, route, and escalate tickets with AI‑powered classification. [3]

What marketing and CRM nodes does n8n provide for lead management?

n8n’s marketing nodes connect CRM platforms—HubSpot (25+ operations across contacts, deals, companies, tickets, and engagements), Salesforce (accounts, leads, opportunities, cases, custom objects, SOQL queries), and Mailchimp (campaigns, list groups, members, tags)— with email tools, forms, and analytics. A single workflow captures leads from web forms, creates contacts in both systems, and triggers welcome email sequences.

For the complete operations reference and workflow patterns for these nodes, see the n8n Marketing Nodes guide.

What DevOps and communication nodes does n8n offer for incident response?

n8n’s DevOps nodes—GitHub (files, issues, releases, repositories, workflows dispatch), Slack (30+ operations: channels, messages with Send and Wait for Response, reactions, files, users), PagerDuty (incidents, incident notes, webhook triggers), and Datadog (metrics, monitors, dashboards, logs)—form a complete incident management stack with automated alerting and escalation.

For the complete operations reference and incident response patterns, see the n8n DevOps Nodes guide.

How do n8n’s AI and LangChain nodes orchestrate LLMs, vector stores, and agents?

The @n8n/nodes-langchain package provides 80+ AI nodes organized into ten categories: Chat Models (OpenAI, Anthropic, Google Gemini), Embeddings (OpenAI, Cohere), Vector Stores (Pinecone, Qdrant, Weaviate, Supabase), Tools (HTTP Request, Code, Workflow), Memory (Window Buffer, Postgres Chat, Zep), Agents, Chains (Retrieval QA, Summarization), Document Loaders, Text Splitters, and Output Parsers.

For the complete AI node reference with RAG pipeline patterns, see the n8n AI Nodes reference.

What database and spreadsheet nodes does n8n support for data pipelines?

n8n’s database nodes provide full CRUD plus specialized operations: PostgreSQL (6 actions: Select, Insert, Update, Delete, Upsert, Execute SQL) with parameterized queries and LISTEN/NOTIFY triggers; MySQL (6 actions: Select, Insert, Update, Delete, Insert or Update, Execute SQL); Google Sheets (Read, Append, Update, Clear, Create); and Airtable (List, Create, Update, Delete, Upsert with Filter By Formula).

For the complete operations reference and ETL patterns, see the n8n Database Nodes guide.

How do n8n’s e‑commerce nodes handle order processing and inventory?

Shopify and WooCommerce nodes trigger on order events (new order, fulfillment, payment), manage product inventory, sync multi‑channel stock levels, and automate shipping label generation. Shopify supports both REST and GraphQL access, while WooCommerce integrates via REST API with webhook‑based order triggers. Both nodes handle authentication natively with OAuth2 or API keys.

For the complete operations reference and fulfillment patterns, see the n8n E‑Commerce Nodes guide.

What customer support nodes does n8n provide for ticket routing and escalation?

Zendesk provides 1 trigger and 24 actions across tickets, users, organizations, and ticket fields—including create, update, delete, get, search, and recover suspended tickets. Freshdesk offers 10 operations across contacts (5) and tickets (5): create, delete, get, get many, and update for both resources. Both nodes support AI‑powered classification and routing when paired with OpenAI or Anthropic nodes.

For the complete operations reference and AI routing patterns, see the n8n Support Nodes guide.