Agent vs Automation: The Difference That Matters
Most articles in this category blur the two, and the distinction decides which tool you need.
An automation follows a fixed path you defined in advance. When a form is submitted, add a row to a spreadsheet and send an email. It does exactly that, every time, and it fails predictably when reality does not match the path you drew.
An agent is given a goal and decides the steps itself. "Watch this inbox, work out which emails are purchase orders, extract the line items, and put them in the right sheet." Nobody wrote the branching logic for a purchase order that arrives as a PDF attachment with an unusual layout; the agent works it out at runtime.
That flexibility is the appeal, and it is also the cost. Agents consume far more compute per run, which is exactly why free tiers meter them separately and much more tightly than ordinary automations. If your task genuinely follows a fixed path, a plain automation will be cheaper, faster and more reliable. Reach for an agent when the input is messy and the decision cannot be written as an if-then rule.
The Launches Making Noise Are Not Free
Worth stating plainly, because a lot of coverage this month implies otherwise.
Letaido, the agent-powered marketing workspace Ahrefs launched on 12 August 2026, starts at $99/month. That base includes one medium workspace, $50/month in AI credits and unlimited members, with extra workspaces from $29/month. It is deeply tied to Ahrefs data and aimed at marketing teams and agencies. There is no free plan.
Lindy is frequently listed in "free AI agents" roundups. Its entry plan is $49.99/month with a 7-day trial. A trial is not a free tier.
This matters for a small business because the useful question is not "which agent is best" but "which agent can I run indefinitely at zero cost to find out whether agents help me at all". Those are different lists.
Make AI Agents Best Free Tier
Make (formerly Integromat) put AI Agents into beta and made them available on every plan, including Free. That is currently the most generous position of any major platform.
The free plan gives you 1,000 credits per month, where each module action consumes one credit, plus access to 3,000+ app integrations, the visual workflow builder, routers and filters. You can run agents using Make's own AI provider or plug in your own LLM API key — and if you bring your own key, your agent reasoning is billed to that key rather than eating your Make credits, which stretches the free tier considerably further.
The constraint to plan around is the 15-minute minimum interval between automated runs on the free plan. For anything scheduled — monitor a mailbox, check a feed, summarise yesterday's orders — that is irrelevant. For anything that must react within seconds, it is disqualifying.
Free tier: 1,000 credits/month, AI Agents (beta) included, 3,000+ apps, 15-minute minimum run interval.
Best for: A small business that wants to test whether agents help, without a card and without a deadline.
Limitation: Credits are consumed per module action, so a multi-step agent burns them faster than the headline number suggests. Budget roughly, then measure.
Zapier Agents 400 Activities/Month
Zapier's free plan includes basic access to its AI products, Agents among them, and the allowance is metered separately from ordinary automation. You get 400 agent activities per month, capped at 10 activities per single agent run. Those activities do not touch your task allowance, which on the free plan is a much tighter 100 tasks per month.
Read that per-run cap carefully, because it is the real limit. Ten activities is enough for an agent that reads an email, classifies it, looks something up and writes a record. It is not enough for an agent that iterates over a list of thirty items. Design around short, decisive runs rather than long ones.
Zapier's advantage is the ecosystem: roughly 7,000 app connections, more than anyone else. If your business runs on an obscure CRM, Zapier is the one most likely to already speak to it. The Pro tier raises agent activities to 1,500/month, with the Professional plan at $29.99/month unlocking multi-step Zaps.
Free tier: 400 agent activities/month, max 10 per run, 100 tasks/month, two-step Zaps only.
Best for: Short, high-value agent runs across an unusually wide range of apps.
Limitation: The two-step limit on free Zaps means the surrounding automation is barely usable. The agents are the good part of this free plan; the classic automation is not.
n8n Self-Hosted Free Forever, If You Can Host It
n8n's Community Edition is open source and self-hosted, with no licence fee, no execution cap and no credit meter. Run it on a small VPS or an old machine and you have unlimited agent runs for the cost of the hardware.
Two consequences follow, one excellent and one uncomfortable. The excellent one: your data never leaves infrastructure you control, which matters if your agents touch customer records or financials — the same concern that applies when sending spreadsheet data through free AI tiers. The uncomfortable one: you are now the sysadmin. Updates, backups, uptime and debugging are yours.
If that trade sounds fine, n8n is the only option here with no ceiling at all. If "deploy a Docker container" is not a sentence you want in your week, take Make instead. n8n Cloud starts at €20/month billed annually for 2,500 executions, which is the escape hatch if self-hosting stops being fun.
Free tier: Community Edition, self-hosted, unlimited executions, no cost beyond hosting.
Best for: Anyone with basic server skills, or with data that should not sit on someone else's platform.
Limitation: Real setup and maintenance work. Budget an afternoon to start and occasional evenings thereafter.
Open-Source Frameworks
One tier further down in convenience and further up in power: CrewAI and AutoGen are open-source frameworks for building multi-agent systems in Python. Free, unlimited, and completely uninterested in holding your hand.
There is no visual builder and no app directory. You write code, you supply your own LLM API keys, and you pay whatever those keys cost. For a business owner without a developer, these are not realistic. For a business with one, they remove every ceiling the platforms impose — and pair well with a token counter to keep the API bill honest before you scale a loop.
Comparison Table
| Tool | Free Tier | Setup | Main Limit |
|---|---|---|---|
| Make | 1,000 credits/mo | No-code | 15-min interval |
| Zapier Agents | 400 activities/mo | No-code | 10 per run |
| n8n Community | Unlimited | Self-hosted | You maintain it |
| CrewAI / AutoGen | Unlimited | Python code | LLM API costs |
| Lindy | None (7-day trial) | No-code | $49.99/mo |
| Letaido | None | No-code | $99/mo |
Which Should You Actually Use?
- Testing whether agents help you at all: Make. Best free allowance, no card, no clock.
- Connecting an unusual app: Zapier Agents, for the 7,000-app ecosystem — and keep each run under 10 activities.
- Customer or financial data involved: n8n self-hosted. It is the only option where nothing leaves your infrastructure.
- You have a developer: CrewAI or AutoGen, and pay only for tokens.
- Marketing agency already deep in Ahrefs: Letaido may earn its $99, but evaluate it against what a free tier already does for you.
One caveat on research for this category: pricing pages change faster than the articles describing them. Relevance AI, for instance, appears in many 2026 roundups as having a free tier, yet its public pricing page currently shows only an Enterprise plan behind "talk to sales". Always confirm the limit on the vendor's own page at signup rather than trusting a listicle — including this one.
And start smaller than feels worthwhile. The most common way a small business wastes its free tier is building one ambitious agent that fails opaquely, instead of three narrow ones that each replace a real fifteen-minute chore. If your task is genuinely repetitive and rule-based, a plain automation from our guide to automating repetitive tasks for free will serve you better than any agent.