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Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · Other

Acorn Harness

Configure, price and order custom XT30, XT30(2+2) and XT30 + JST GH wire harnesses.

Checks passed
15 / 22

0 failed · 7 not measured

Median response
508 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
4

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Responded

The server completed its last measured handshake. This is an observation, not a guarantee.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
103
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
400
Publisher identityCan the publisher be traced to its source?
402

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 519 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name acorn-harness.

  • Pass
    Lists tools

    tools/list returned 4 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 508 ms over 2 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 518 ms over 2 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    2 of 2 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Pass
    Stable tool list

    No tool was removed and no required parameter was added in the last 30 days.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Pass
    Parameters documented

    8 of 8 parameters have a description (100%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Pass
    Website matches publisher

    The website host matches the reverse-domain namespace.

  • Pass
    Source repo linked

    A repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Pass
    Recently updated

    Updated 2026-11-03T06:01:23.343686Z, within 180 days.

  • Not measured
    Open-source licence

    The GitHub licence lookup has not returned an OSI result yet.

Start using Acorn Harness

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http acorn-harness https://acornharness.com/mcp

Capabilities

Tools 4

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 pay (card, Link or wallet, via Stripe) and enter the shipping address (in the ship_to country) and, in the US, the shipping speed (other countries have one service, International Tracked); nothing is charged or built until they pay there, and the link expires after 24 hours. Quote first with quote_harness and confirm the design, quantity and price with the user before calling this. Never ask for or accept card numbers or other payment details in the conversation. Items take the same fields as quote_harness and must be just as complete: pass back each quoted item's config (or design) once the user has confirmed it, and the same ship_to.

Discovered
get_order_status

Check an order by the id create_order returned (starts with cs_). Returns status: awaiting_payment (checkout_url still valid), payment_processing (a bank payment settling), payment_failed or expired (create a new order), or paid (built and shipped within 5 business days; tracking is emailed to the buyer), plus the charged totals. Never returns addresses or contact details.

Discovered
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 gauges, end A and end B terminations (straight, right angle up/down, unterminated tinned leads on end B), wire colors, extras (twisted or crossed signal pair, JST GH end B), the rules for combining them, required_choices (with the question to ask the user for each), optional_choices and their defaults, pricing rules, lead time, shipping and returns. Call it when you need the allowed values; it takes no arguments and changes nothing.

Discovered
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 both ends' rear views, as the configurator draws it: show it to the user), a configurator_url that opens the design on the site, and defaults_applied. Every item needs connector, length_mm, power_gauge, end_a, end_b, quantity, or a complete design code / configurator URL in design. Items missing any of them are refused with the questions to ask: ask the user, don't guess, and ask about end A and end B separately. Colors, twisting, crossing and end_b_gh have defaults, listed in defaults_applied for you to tell the user. Volume discounts count every harness across all items. Also returns the shipping options and prices to ship_to (the US if omitted; ask the user where it ships). Prices exclude shipping (chosen at checkout from those options) and sales tax; outside the US the buyer pays import duties and taxes on delivery. Nothing is ordered or saved.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected519 ms4
Connected497 ms4