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Harness

Activepieces

Open-source automation with AI agents and ~400 MCP servers.

A Zapier-style automation tool you can self-host, with AI agents and a large library of 'pieces' exposed as MCP servers.

Where it runsLocal or cloud
CostFree tier

Self-host free; cloud plans start at $0 (see activepieces.com/pricing).

Good for: Lead follow-up, Bookkeeping, Support triage, Content

Visit Activepieces · Source: github.com

What plugs into Activepieces

Local AI tools

Local AI tool

Ollama

Run open models locally with one command.

Local or cloudFree

MCP connectors

MCP connector

Zapier MCP

Connect any MCP-capable agent to 9,000 apps.

CloudFree tier
MCP connector

Stripe MCP

Let agents look up payments, invoices and customers in Stripe.

CloudFree
MCP connector

HubSpot MCP Server

Give agents access to your HubSpot CRM records.

CloudFree
MCP connector

QuickBooks Online MCP Server

Intuit's MCP server for QuickBooks bookkeeping data.

Runs locallyFree
MCP connector

MCP Reference Servers

Official reference MCP servers: filesystem, fetch, memory, git and more.

Runs locallyFree