Best AI automation tools with MCP support

Updated 17 Oct 2026 · Prices from vendor pages only · How we rank →

The short answer

Each of these AI automation tools supports the Model Context Protocol (MCP), so AI agents can connect to it. Zapier comes first: the largest app ecosystem with a free forever plan and simple task-based pricing. The cheapest verified paid plan here is Zapier Professional (from $19.99/month). 5 of the 7 have a free plan we could confirm. Every price below is from the vendor’s own page, checked 16–17 Oct 2026.

Ranked shortlist

Zapier: The largest app ecosystem with a free forever plan and simple task-based pricing. Plan: Professional: from $19.99/month
Multi-step Zaps
n8n: Developer-friendly automation with unlimited steps per execution and a self-host option. Plan: Not yet verified
Relevance AI: No-code platform for building AI agent teams. Plan: Not yet verified
OpenAI Agents SDK: OpenAI's lightweight framework for multi-agent workflows. Plan: Open source (MIT)
Google ADK: Google's open-source Agent Development Kit. Plan: Open source (Apache-2.0)
Pydantic AI: Type-safe Python agent framework from the Pydantic team. Plan: Open source (MIT)
Langflow: Open-source visual builder for agents and RAG. Plan: Free and open source, plus a free cloud account

Order follows ToolRank’s editorial ranking in Automation & Agents, filtered to tools that fit this page. Anything we couldn’t confirm on a vendor page says “Not yet verified”.

Side by side

Rank	Tool	Relevant plan	Starting price	Free plan	Best for	Main limitation	Last checked
#1	Zapier	Professional: from $19.99/month Multi-step Zaps	$19.99/month (Professional)	100 tasks/month; Zaps, Tables and Forms included	Non-technical teams automating across many SaaS apps	Free plan is 100 tasks/month; costs scale with task volume.	16 Oct 2026
#2	n8n	Not yet verified	€20/month (Starter, billed annually)	✕ None listed	Technical teams building complex workflows and AI agents	Cloud plans count workflow executions (2.5K/month on Starter); steeper learning curve.	16 Oct 2026
#3	Relevance AI	Not yet verified	Not yet verified	Not yet verified	Companies building a team of AI agents for sales and operations	Only the Enterprise plan was shown on the pricing page	17 Oct 2026
#4	OpenAI Agents SDK	Open source (MIT)	Not yet verified	Open source (MIT)	Developers building multi-agent workflows with tools and handoffs	You pay your model provider for usage	17 Oct 2026
#5	Google ADK	Open source (Apache-2.0)	Not yet verified	Open source (Apache-2.0)	Developers building agents on Gemini and Google Cloud	You pay your model provider for usage	17 Oct 2026
#6	Pydantic AI	Open source (MIT)	Not yet verified	Open source (MIT)	Python developers who want type-safe agents	A code library: you supply model API keys and hosting	17 Oct 2026
#7	Langflow	Free and open source, plus a free cloud account	Not yet verified	Free and open source, plus a free cloud account	Building and deploying agents and MCP servers visually	Cloud limits are not published on the homepage	16 Oct 2026

Prices as listed by each vendor on the last-checked date, USD, before tax. Plans and limits change, so follow the sources below.

Who should pick which

Pick Zapier for non-technical teams automating across many SaaS apps (Professional: from $19.99/month); think twice if you run very high volumes and want self-hosting. Pick n8n for technical teams building complex workflows and AI agents (€20/month (Starter, billed annually)); think twice if you want the simplest no-code setup. Pick Relevance AI for companies building a team of AI agents for sales and operations (price not yet verified). Watch out: only the Enterprise plan was shown on the pricing page. Pick OpenAI Agents SDK for developers building multi-agent workflows with tools and handoffs (free plan: Open source (MIT)). Watch out: you pay your model provider for usage. Pick Google ADK for developers building agents on Gemini and Google Cloud (free plan: Open source (Apache-2.0)). Watch out: you pay your model provider for usage. Pick Pydantic AI for python developers who want type-safe agents (free plan: Open source (MIT)). Watch out: a code library: you supply model API keys and hosting. Pick Langflow for building and deploying agents and MCP servers visually (free plan: Free and open source, plus a free cloud account). Watch out: cloud limits are not published on the homepage.

FAQ

Which of these is cheapest?

Zapier Professional (from $19.99/month) is the lowest paid price we verified on this list (https://zapier.com/pricing, checked 16 Oct 2026). Check the vendor page for tax, billing period and usage limits.

Which of these have a free plan?

Zapier: 100 tasks/month; Zaps, Tables and Forms included; OpenAI Agents SDK: Open source (MIT); Google ADK: Open source (Apache-2.0); Pydantic AI: Open source (MIT); Langflow: Free and open source, plus a free cloud account.

How were these tools chosen?

They are the tools in ToolRank's rankings with MCP support listed by the vendor, confirmed on the vendor's own website on 16–17 Oct 2026. Tools we could not verify are left out rather than guessed, and anything unconfirmed is marked Not yet verified.

Sources

Zapier: Zapier pricing checked 16 Oct 2026
Zapier: Zapier Agents checked 16 Oct 2026
n8n: n8n pricing checked 16 Oct 2026
Relevance AI: Relevance AI pricing checked 17 Oct 2026
OpenAI Agents SDK: OpenAI Agents SDK GitHub repository checked 17 Oct 2026
Google ADK: Google ADK GitHub repository checked 17 Oct 2026
Pydantic AI: Pydantic AI GitHub repository checked 17 Oct 2026
Langflow: Langflow pricing checked 16 Oct 2026

Related comparisons

All comparisons →

Profiles: Zapier · n8n · Relevance AI · OpenAI Agents SDK · Google ADK · Pydantic AI · Langflow

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