← All harnesses

Harness

goose

Open-source, extensible agent that runs on your machine.

A local agent (desktop app and CLI) that you extend with MCP servers. Works with local or hosted models.

Where it runsRuns locally
CostFree

Open source and free; model costs depend on what you connect.

Good for: Content, Bookkeeping

Visit goose · Source: github.com

What plugs into goose

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