Spree Commerce: open-source B2B and marketplace ecommerce
Open-source B2B and marketplace ecommerce; new stores include an MCP server for AI agents.
Runs in the cloud
Limonene
Overview
Description from the maker (original English)
Read-only Amazon seller analytics: sales, Buy Box, FBA inventory, alerts, revenue and fees.
PopNx MCP’s three pillars
These three are never merged into one score: opinions, measurements and popularity are different things.
- User voiceiNo reviews yetReviews open together with accounts in a later step
- Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
- UsageiVery new★ –
What you can do with it
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
- Connection: Runs in the cloud
- Transport: Streamable HTTP
- Category: Online shops & payments
Install
Pick the AI app you use, then copy the settings.
Before you install
- Basic checks: 1 of 1 passed
- Runs on the maker’s server: what you ask it goes through their server.
- The registry lists no key to fill in.
You need
- Runs in the cloudNothing to install; it connects over the internet
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Works in Claude on the web, desktop and mobile:
- Open Settings → Connectors
- Press Add custom connector
- Paste the address below and press Add
- If it asks you to sign in, sign in with the maker
https://limonene.app/api/mcpRun this in your terminal
claude mcp add --transport http limonene https://limonene.app/api/mcpOr copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"limonene": {
"url": "https://limonene.app/api/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Or copy the settings yourself
Paste into .vscode/mcp.json in your project
{
"servers": {
"limonene": {
"type": "http",
"url": "https://limonene.app/api/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
ChatGPT connects only to servers on the internet:
- Open ChatGPT on the web → Settings → Connectors (Apps)
- Press Create or Add (some plans need Developer mode under Advanced first)
- Paste the address below, give it a name and save
- If it asks you to sign in, sign in with the maker
https://limonene.app/api/mcpMenu names can differ slightly by plan and over time.
Your choice stays on this device in a cookie; no account needed.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
What it can do
We have not read this server’s tool list yet; we check endpoints in rotation.
Basic checksi
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 9, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified against the domain limonene.app (the registry checks domain ownership)
- … Not checked yet
Still maintained
We have not read this repo from GitHub yet
- … Not checked yet
Has a licence
We have not read this repo from GitHub yet
- … Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
- … Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
- … Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint
Compared with others in Online shops & paymentsi
- More stars than 0% of the other 2571 servers in this category
- Published to the registry more recently than 36% of the other 2571 servers in this category
- Basic checks equal to or better than 100% of the other 2571 servers in this category
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
Common questions
Is Limonene safe?
It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
What keys or codes does it need?
The registry does not list a required key, though some servers ask you to sign in on first use.
Does it run on my computer or in the cloud?
It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.
Is it still maintained?
The GitHub repo last changed –, and the latest version (0.1.0) reached the registry 2 months ago.
Which apps can use it?
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.
What can I use instead?
In the same category: Spree Commerce: open-source B2B and marketplace ecommerce, Stripe MCP, MCP Cn Commerce
Alternatives
Servers in the same category from other makers, sorted by stars.
Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
Stripe MCP
Stripe’s official server lets AI view and manage customers, products, payments and invoices. Connect to Stripe’s cloud and sign in with OAuth.
Runs in the cloud✓ stripe.com
MCP Cn Commerce
8 read-only MCP platform entries; support is operation-specific; merchant live acceptance pending
Runs on your computer
README from the maker
Open the README
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
Limonene AI connector
Amazon seller investigations through ChatGPT, Claude and compatible MCP clients. Basic connections expose six read-only tools. Separately consented management access supports additional analysis and approved actions; the initial read-only Claude directory listing is public and expanded management metadata is in review.
Endpoint: https://limonene.app/api/mcp Setup and permissions: https://limonene.app/connect-ai Revoke connections: https://limonene.app/api/mcp/connections Privacy: https://limonene.app/privacy
Claude listing: https://claude.ai/directory/limonene. Its approved description currently covers six read-only tools; the expanded listing update is in review. The separate Claude Code/Cowork plugin and OpenAI submissions remain in review.
Connection
- Sign in to Limonene and connect an Amazon store. Complete its initial sync.
- Add the endpoint as a custom remote connector in your AI client (account/workspace support varies).
- Authenticate in the browser. Read the client name and callback origin, select a store and choose Read only or Read and manage. Management requires a separate acknowledgment and approval before each change.
- Ask: “Review my last seven days. What deserves investigation? Cite sources, dates, and limitations.”
Claude Code: claude mcp add --transport http limonene https://limonene.app/api/mcp, then use /mcp to authenticate. The package includes separate OpenAI and Claude manifests referring to the same remote server; there is no local executable and no credential embedded in the package.
Basic tools
get_store_overview: bounded marketplace-local sales window.get_open_insights: dated existing alerts, capped at 25.get_pricing_and_buybox: cached observations for up to 20 SKUs; no price edits.get_inventory_health: FBA-only inventory, optional SKU.get_sales_trend: SKU history for 1–60 days.get_profit_breakdown: revenue/fees and available cost-coverage information; do not label fees-only figures net profit.
The six-tool basic connection excludes changes and buyer contacts. Choosing Read and manage in a compatible client enables up to 57 tools, depending on store feature availability, including approved prices, listings, repricing rules and schedules. Advertising changes and paid reimbursement filing are excluded. DeepSeek’s current package is a read-only pilot. Each grant is bound to one store and its active marketplace; reads fail closed while a different marketplace is active. To read that marketplace, reconnect. Results use the existing capability caches and may trigger their normal background refresh. The external AI generates the answer; this connector does not run a second Limonene model call or debit chat credits. First-party telemetry records connection, revocation, tool name, success and duration; it does not log prompts, arguments, tokens or tool results. Existing billing remains advisory under the current app policy. This release does not introduce a paid gate or promise unlimited access. Limits: 60 MCP requests/minute/store plus the existing IP ceiling.
Privacy and security
OAuth authorization code flow with mandatory S256 PKCE and resource binding. Public clients register with token_endpoint_auth_method: none. Access tokens expire after one hour; refresh tokens rotate and expire after 30 days. Tokens/codes/browser nonces are stored hashed. Consent requests expire after ten minutes and codes after one minute. Ownership, connection health, revocation and marketplace are rechecked on access. Product and alert text are untrusted data.
The AI service receives the requested store results under the seller's authorization. Its own data policies apply. Revocation blocks subsequent reads, not copies already retained by that service. Account deletion removes grants and their token/code records.
GitHub Copilot in VS Code
Copy vscode.mcp.json to your workspace as .vscode/mcp.json, then start the server from VS Code and complete the browser authorization. Your editor must support remote HTTP MCP and OAuth. This configuration is for GitHub Copilot in VS Code; it is not a Microsoft 365 Copilot marketplace listing.
Installation package
This repository contains public connector configuration and documentation only. The hosted Limonene service is separate. No API key is required in these files; each user signs in and grants access to their own store.
A Limonene account and a connected, synchronized Amazon store are required. Availability and pricing: https://limonene.app/pricing. Do not connect a customer store for platform review; use a dedicated review account.
Pilot status
The remote endpoint is live. Six read tools have passed MCP Inspector against the isolated live reviewer account; the original ChatGPT read workflows were also tested. OpenAI and the Claude Code/Cowork plugin are under review. The six-tool Claude connector is published. All 57 tools passed live MCP Inspector sample checks, and Claude completed a fictional inventory → price preview → explicit approval → simulated completion workflow. Four MCP prompts were listed and retrieved. This is not evidence that every real Amazon workflow has been exercised. Installing this package does not imply endorsement by any platform.
Support: hello@limonene.app Setup: https://limonene.app/connect-ai Terms: https://limonene.app/terms Privacy: https://limonene.app/privacy
The MIT license applies only to files in this public connector package, not to the hosted service or its backend.
DeepSeek Harness
A pinned OAuth bridge and DSH bundle are available. See DeepSeek setup and validation boundaries. This is a community developer integration, not a consumer DeepSeek chat-app listing.
Management workflows
With explicit Read and manage consent, up to 57 tools cover product and order analysis, inventory/inbound, listings, pricing and repricing, costs, reimbursement evidence, available ads analysis, schedules, structured queries and seller notifications. See management permissions and operations.
Four MCP prompts guide multi-step work: weekly_store_review, pricing_change_plan, inventory_action_plan and listing_improvement_plan. Every action uses a frozen preview, explicit approval and a tracked operation. Scheduled analyses use Limonene AI credits; approved schedules and repricing rules may continue after disconnecting.
The Claude plugin manifest is version 0.2.0 for direct installation. It does not mean the separate plugin marketplace review has approved that version. DeepSeek Harness remains a read-only pilot.