Spec Driven Development
by formulahendry
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Runs on your computer★ 440MITUpdated 14 months ago
Install
Plain Freight
Overview
Description from the maker (original English)
All-in DDP quotes for China to USA shipments, 100 g to 2,000 kg, from a live rate card
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
- UsageiNot measured yet★ –
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: Other
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://plainfreight.com/api/mcpRun this in your terminal
claude mcp add --transport http quotes https://plainfreight.com/api/mcpOr copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"quotes": {
"url": "https://plainfreight.com/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": {
"quotes": {
"type": "http",
"url": "https://plainfreight.com/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://plainfreight.com/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 6, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified against the domain plainfreight.com (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 Otheri
- More stars than 0% of the other 32433 servers in this category
- Published to the registry more recently than 43% of the other 32433 servers in this category
- Basic checks equal to or better than 100% of the other 32433 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 Plain Freight 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 (1.0.0) 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: Spec Driven Development, Remote Desktop Commander, Symantec Cloud DLP AIops
Alternatives
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
Remote Desktop Commander
by desktop-commander
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
Runs in the cloud★ 211Updated yesterday
Install
Symantec Cloud DLP AIops
by AIops-tools
Governed Symantec Cloud DLP — 14 MCP tools, read-only with audit.
Runs on your computerUpdated today
Install
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.
Plain Freight MCP server
A hosted Model Context Protocol server that quotes real freight. Ask it what it costs to ship something from China to the United States and it returns an all-in delivered-duty-paid price from the same pricing engine a human customer is quoted from: freight, US customs clearance, import duty and delivery to a US door, in one number.
No API key. No signup. Nothing to install.
https://plainfreight.com/api/mcpTransport is Streamable HTTP, stateless, protocol version 2025-06-18 (also accepts 2025-03-26 and 2024-11-05).
Add it to a client
Claude Code:
claude mcp add --transport http plain-freight https://plainfreight.com/api/mcpClaude Desktop, Cursor, or anything reading a JSON config:
{"mcpServers": { "plain-freight": { "type": "http", "url": "https://plainfreight.com/api/mcp" } } }
Check it by hand:
curl -s -X POST https://plainfreight.com/api/mcp \-H "Content-Type: application/json" \ -H "Accept: application/json, text/event-stream" \ -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'
Tools
Five tools. Only generate_offer records anything; the other four only read. No tool books or charges anything.
| Tool | What it does |
|---|---|
estimate_price | A rough door to door cost in USD for air (and sea from 100 kg chargeable weight), from the same pricing engine. Needs weight_kg; product, carton sizes (carton_length_cm, carton_width_cm, carton_height_cm, carton_count) or total_cbm sharpen it. Returns the chargeable weight used (the greater of actual weight and carton volume in cm3 / 6,000), transit estimates and whether US import duty is included. Records nothing, contacts no one, needs no email. Goods that need a person to review them get no figure. |
check_goods | Says whether a product (product, in the user's words) is priced at once or reviewed by a person first (for example batteries, chemicals, food, cosmetics, seeds, vapes or weapons), with a plain explanation and what documents to have ready. Same screen as generate_offer, so it predicts what an offer will do. Records nothing. Not legal or customs advice. |
generate_offer | The firm offer. Needs product and weight_kg (0.1 to 2000); dimensions, origin, destination_zip, urgency, email, name and notes all improve the answer. Pass carton sizes when you have them: for light bulky cargo the volumetric weight sets the price, not the scale weight. Each call records a quote request, and if an email is given the written offer is mailed there once the second check settles (at most one offer email per address per day). Returns the options, a quote_id and a link to a booking form on plainfreight.com prefilled with the shipment. |
check_offer_status | Polls an offer by quote_id until settled is true. Every quote gets a second check, which can add follow-up questions, change the options, or set needs_review. Read-only. |
track_shipment | Reads the live record for a booked shipment from its tracking_link (https://plainfreight.com/track/ , or the bare token): current stage on the 10-stage lifecycle, route and dated events. Read-only. |
Booking happens outside the chat: the user opens the prefilled booking form, replies to the offer email, or writes to hello@plainfreight.com quoting the quote_id. Nothing is paid before the goods are weighed at the warehouse.
Two behaviours worth knowing before you build on it:
- `needs_review` means the prices are withheld on purpose. The goods look restricted (batteries, food, chemicals) and a person has to clear them first. Do not present a number to the user in that case; Plain Freight follows up by email.
- The tracking token is the credential. Anyone holding the link can read that shipment, and the record deliberately excludes cost and margin fields.
Rate limits: 20 offers per hour per IP, 4 per email address, 30 across all agents per hour. For bulk or programmatic access, email hello@plainfreight.com.
There is also a plain REST version of the same pricing call at POST https://plainfreight.com/api/v1/offer, described in openapi.json, and human documentation at plainfreight.com/for-agents.
Published reference data
The same engine feeds three pages that are free to cite, with CSV and JSON where it makes sense:
- China to USA shipping price index: dated door-to-door prices at twelve weights from 0.5 kg to 1,000 kg, with duty status and transit time on every row.
- Chargeable weight reference: what fifteen real cartons bill, and the same cartons at three divisors.
- US import rules timeline: every de minimis and entry change since May 2025 with its Federal Register citation.
The price-index data is also published as a dataset at plainfreight-com/china-usa-freight-price-index.
What Plain Freight is
A China to USA freight agency for small importers: one all-in DDP price on shipments from 100 g to 2,000 kg, quoted before pickup. Plain Freight is a trading name of Fisto LLC, a Wyoming limited liability company. The price does not include cargo insurance, which the customer arranges separately.
Questions, or a shipment that needs a human: hello@plainfreight.com
Licence
MIT for the contents of this repository. The MCP server itself is a live commercial service; using it means quoting real freight, so treat the prices as real.