Workflow automation AI agent builders

By César Murga · 10 tools

Workflow automation agent builders let an AI agent make decisions inside a visual automation that also runs fixed, predictable steps. The leaders are n8n (self-hostable, priced per execution), Zapier Agents (9,000+ apps, per Zapier) and Make (credit-based, with a visible reasoning panel).

Pick this category when your agent mostly moves data between business apps: enriching leads, triaging tickets, routing documents. The key differences are how usage is billed (executions, tasks or credits), whether you can self-host, and how many app integrations exist out of the box.

n8n

Visual workflow automation with built-in AI agents, self-hostable or cloud.

Starts at: €20/mo (Starter, billed annually)
Free option: Self-hosted Community Edition
Self-host: Yes

Zapier Agents

AI teammates that act across 9,000+ apps, built on the Zapier platform.

Starts at: Add-on to Zapier plans (Professional from $19.99/mo)
Free option: Zapier Free plan (100 tasks/mo)
Self-host: No

Make (Make AI Agents)

Visual automation scenarios with AI agents and a step-by-step reasoning panel.

Starts at: Free plan (1,000 credits/mo); paid Core, Pro, Teams
Free option: Free plan, 1,000 credits/month
Self-host: No

Gumloop

Agent infrastructure for business teams, with browser agents and 35+ models.

Starts at: $37/mo (Pro)
Free option: 14-day free trial of Pro
Self-host: No

Activepieces

Open-source AI agents and workflow automation with flat per-month pricing and self-hosting.

Starts at: $20/mo (Plus)
Free option: Free plan
Self-host: Yes

CrewAI

Enterprise agent build and runtime platform with a free tier and centrally governed multi-agent workflows.

Starts at: See vendor pricing page
Free option: Free plan
Self-host: Yes

OpenAI Agent Builder

Winding down

Visual canvas from OpenAI’s AgentKit — being retired on 30 November 2026.

Starts at: Standard API model pricing
Free option: None (API usage)
Self-host: No

Pipedream

Integration layer for AI agents with managed auth and 10,000+ tools across 3,000+ APIs.

Starts at: $99/mo (Startup)
Free option: Free plan
Self-host: No

Relay.app

Shutting down

AI work automation tool that shut down in September 2026.

Starts at: Shut down (September 2026)
Free option: None — service closed
Self-host: No

Salesforce Agentforce

Enterprise AI agent platform with consumption-based Flex Credits, per-conversation pricing, and per-user add-ons.

Starts at: $0 (Salesforce Foundations); paid from $500 per 100k Flex Credits
Free option: Salesforce Foundations free tier
Self-host: No

How do you choose a workflow automation agents tool?

Count your runs: n8n bills per workflow execution, Zapier per task, Make per credit — model your monthly volume on each.
Check that your must-have apps have native connectors.
Decide whether you need self-hosting or EU data residency (n8n).
Look for human-approval steps before agents send or update anything.

Related guides

Frequently asked questions

What is a workflow automation AI agent?

It is an AI agent that runs inside an automation platform, deciding which steps or tools to use, while the rest of the workflow follows fixed rules.

Which workflow automation tool is cheapest for AI agents?

For self-hosting, n8n’s Community Edition is free. For hosted plans, the cheapest option depends on volume because n8n, Zapier and Make bill in different units.

Want the agent built for you instead?

Tell us the outcome you need (e.g. “qualify every inbound lead within 5 minutes”). We match you with a vetted no-code agent builder who works on n8n, Make, Zapier, Botpress or Voiceflow.

Describe your agent →

Written and fact-checked by César Murga, Founder & Editor

Entrepreneur focused on AI-powered sales systems, with 15 years in consultative sales and international admissions. NoCode Agents researches no-code AI agent builders from vendors’ own pricing pages, docs and announcements, and links every claim to its source. Last updated 26 October 2026.

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