The Acorn Harness MCP server,
connected in one click.
Configure, price and order custom XT30, XT30(2+2) and XT30 + JST GH wire harnesses. Connect the official Acorn Harness MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Add Acorn Harness to your AI in one minute
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http acorn-harness https://acornharness.com/mcpRun in your terminal, then restart Claude Code.
Acorn Harness · https://acornharness.com/mcp
What your AI can do with Acorn Harness
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “list_options”: List every option for an Acorn Harness custom wire harness: connector types (XT30, XT30(2+2), XT30 + JST GH), wire length range, power gauge.”
“Use “quote_harness”: Price one or more custom wire harness designs exactly as acornharness.com checkout will. Returns, for each design, a picture (side view plus.”
“Use “create_order”: Create an unpaid order for one or more wire harness designs and get a checkout_url on acornharness.com for the buyer. The buyer opens it to.”
“Use “get_order_status”: Check an order by the id create_order returned (starts with cs_). Returns status: awaiting_payment (checkout_url still valid), payment_proce.”
How secure is the Acorn Harness MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how Acorn Harness holds up.
Security grade A
gate scanned 4 tools on Nov 6, 2026 for prompt injection and risky tool definitions — nothing to flag.
- lowquote_harness: Unusually long tool description
- lowcreate_order: Unusually long tool description
Official endpoint
Operated by Acorn Harness (acornharness.com) at its documented MCP endpoint — not a third-party mirror or community re-host.
No sign-in needed
This server only exposes public data — no account and no credentials are involved when you connect.
Scanned before it goes live
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
Watched for drift
If Acorn Harness adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Connected in three steps
Connect your gate
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Pick Acorn Harness
Choose Acorn Harness in the gate directory. No sign-in needed.
Use it anywhere
Acorn Harness's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
The actual tools Acorn Harness exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
list_options — List every option for an Acorn Harness custom wire harness: connector types (XT30, XT30(2+2), XT30 + JST GH), wire length range, power gauge
quote_harness — Price one or more custom wire harness designs exactly as acornharness.com checkout will. Returns, for each design, a picture (side view plus
create_order — Create an unpaid order for one or more wire harness designs and get a checkout_url on acornharness.com for the buyer. The buyer opens it to
get_order_status — Check an order by the id create_order returned (starts with cs_). Returns status: awaiting_payment (checkout_url still valid), payment_proce
Who runs the Acorn Harness MCP server?
The Acorn Harness MCP server at a glance
https://acornharness.com/mcpQuestions, answered
Is there an official Acorn Harness MCP server?
Yes — Acorn Harness operates its own remote MCP server at acornharness.com. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
How do I connect Acorn Harness to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick Acorn Harness in the directory. No account or sign-in is needed. From then on, Acorn Harness's tools are available in every client you've connected to gate.
Do I need to host anything?
No. Acorn Harness runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the Acorn Harness MCP server safe to connect?
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Is it free?
Yes — you can get started with gate for free and connect Acorn Harness in minutes. No credit card required.
Connect more than just Acorn Harness
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up Acorn Harness in: Claude · Claude Code · ChatGPT · Cursor · VS Code