n8n vs Zapier for AI Agents: Which Workflow Tool to Choose

When you're wiring an AI agent into the rest of your stack, the hardest part is rarely the LLM call—it's the dozen things on either side of it. Triggering on a new lead, fetching CRM context, calling the model, parsing structured output, branching on confidence, updating systems, and notifying humans. That's a workflow problem, and most teams reach for n8n or Zapier to solve it.

They look similar. They're not.

Pricing model

Zapier charges per task (each step is a task). For an AI agent workflow with 8–12 steps per run, costs scale fast. A workflow firing 1,000 times a day on a mid-tier plan can run $200–$400/month before you add the LLM costs.

n8n self-hosted is free and you only pay for the server. n8n Cloud charges per workflow execution, not per step—a 12-step workflow costs the same as a 2-step one. For high-volume agent workflows this difference compounds quickly: the same 1,000-runs-a-day workflow runs $20–$50/month on n8n Cloud, or basically nothing self-hosted.

AI-native features

Both have LLM nodes now. The depth differs.

n8n ships first-class agent nodes (LangChain integration, vector stores, memory, tool nodes, structured output) and lets you build multi-step agent loops inside the workflow itself. You can wire a tool-calling agent that loops until it has the answer, using the workflow tool as the orchestration layer.

Zapier's AI features are more focused on "drop a model into a step" use cases—classify this email, summarize this document, extract these fields. Great for simple augmentation. Less suited for true agent loops where the model needs to call tools and iterate.

Integration breadth

Zapier wins on this dimension and probably always will. 7,000+ integrations versus n8n's roughly 600. If your workflow touches obscure SaaS tools—a regional CRM, a niche scheduling tool, a specific accounting product—Zapier likely has it and n8n likely doesn't.

But: n8n's HTTP request node and code node mean any REST API is one step away. If your team has any engineering capacity, the integration count matters less than it looks.

Self-hosting and data control

n8n can run in your VPC, on-prem, or in Docker on a $20 VPS. Sensitive workflows never leave your infrastructure. Zapier runs in Zapier's cloud, period. For regulated industries that's often a dealbreaker.

The simple recommendation

• Marketing teams, ops teams without engineers, low-volume agent workflows: Zapier. The integration breadth and visual builder save time.
• Engineering-led teams, high-volume workflows, regulated data, or budget-sensitive deployments: n8n. Self-host it and the per-execution math gets very hard to beat.
• Multi-step agent loops with tool use: n8n by a wide margin today.

You don't have to pick one forever. Plenty of teams run both: Zapier for the quick "when X happens, do Y" wiring across SaaS, and n8n for the heavier agent workflows that justify the extra setup.