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Harness

Dify

Open-source platform for agentic workflows and RAG apps.

Build chatbots, agents and workflows with a visual editor; self-host it free or use Dify Cloud. Supports MCP tools.

Where it runsLocal or cloud
CostFree tier

Self-host free; Dify Cloud has a free sandbox and paid plans.

Good for: Website chat, Support triage, Content

Visit Dify · Source: github.com

What plugs into Dify

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

Harnesss

HarnessBuilt by the founder

s3a-harness

Open-source MCP research-agent harness with human approval gates.

Runs locallyFree