Open-source B2B and marketplace ecommerce; new stores include an MCP server for AI agents.
Data Quality Gate
Overview
Description from the maker (original English)
Check entire lead, order and inventory CSV/JSONL against approved contracts before writes.
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 3 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: Online shops & payments
- You need to fill in: X-API-Key
Install
Pick the AI app you use, then copy the settings.
Before you install
- Basic checks: 1 of 3 passed
- Runs on the maker’s server: what you ask it goes through their server.
- You fill in yourself:
X-API-Key
Values marked secret are keys to your account. Never share them or paste them into a chat.
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 …”.
This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.
Run this in your terminal
claude mcp add --transport http data-quality-gate https://mcp.contentsweep.ai/v1/quality/mcp/ --header 'X-API-Key: your-value'Fill in the empty values before running it.
Or copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"data-quality-gate": {
"url": "https://mcp.contentsweep.ai/v1/quality/mcp/",
"headers": {
"X-API-Key": "your-value"
}
}
}
}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": {
"data-quality-gate": {
"type": "http",
"url": "https://mcp.contentsweep.ai/v1/quality/mcp/",
"headers": {
"X-API-Key": "your-value"
}
}
}
}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.
This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.
Your choice stays on this device in a cookie; no account needed.
Values you fill in
X-API-Keysecret required HTTP headerVerified organization API key
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
What it can do
The server asks you to sign in before it lists its tools.
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 7, 2026
- ! Caution
Maker matches the repo
The publisher (contentsweep.ai) is not the repo owner (founder-sweep); someone else may have listed it
- … 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
- ✓ Pass
Endpoint responds
Responded in 585 ms (HTTP 401)
- ! Caution
Sign-in with OAuth
Needs a key or token that you copy and paste yourself
- … 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 1751 servers in this category
- Published to the registry more recently than 82% of the other 1751 servers in this category
- Basic checks equal to or better than 38% of the other 1751 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 Data Quality Gate safe?
It passed 1 of 3 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?
You need to fill in: X-API-Key
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 (1.0.1) reached the registry 5 days 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:★ 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.
MCP Cn Commerce
8 read-only MCP platform entries; support is operation-specific; merchant live acceptance pending
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.
Check lead CSV files before your agent writes to a CRM
Current status — November 1, 2026
Hosted Quality engine quality-1.0.0; active MCP Registry descriptor 1.0.1. Five trials once per verified organization, then $20 plus applicable tax for 100 checks. Separate organization key required. Quality's existing n8n submission awaits owner Terms confirmation and creator eligibility; submission and acceptance are separate.
Agent setup · Product skill · Task-to-tool reference. Skills support Codex and Claude Code and grant no upload, business-meaning approval, spending or destination-write permission. Historical test notes below retain their original scope; synthetic/internal qualification is not paid adoption.
Data Quality Gate checks every row of an original lead, order or inventory CSV/JSONL against explicit contracts you review and approve. The workflow proceeds only on continue, then downloads and verifies the exact checked original before a destination write.
Try five checks free · Integration guide · Reproducible lead guides
Five trial checks once per verified organization, then 100 prepaid checks for $20 plus applicable tax. No quality subscription, automatic overages or replenishment. A supported completed block or warning uses one check. Unsupported or incomplete evaluations and platform failures do not; duplicate retries reuse the original job.
The fixtures here are synthetic, generated and checked by the maintained engine. No customer files, credentials or private execution logs belong in this repository. Internal qualification and synthetic examples do not establish independent customer adoption, customer ROI or comparative superiority. Qualification evidence is bound to the intended installed source before publication.
Reference client
From this examples repository, use Python 3.12 or later and the standard-library client:
export QUALITY_API_KEY=... # from your verified account; keep it private
python client.py --file leads.csv
Review the exact preset before approving and authorizing a check:
python client.py --approve-contract --authorize-check
Resume the original quote/key after an uncertain response:
python client.py --resume --authorize-check
The retry file contains no API key but is private; keep it and customer outputs out of version control. --contract-id reuses an existing approved contract; --baseline-id supplies its reviewed reference. Exit 0 returns the exact checked original; exit 2 stops for constraint/quote review; exit 5 stops for failed/unfinished evaluation. A timeout never authorizes writing. Delete local customer outputs according to your policy.
n8n setup
Import an inactive workflow, then:
- Verify your organization and create a key. In HTTP Header Auth configure header
X-API-Keywith that key, named Quality organization X-API-Key. Select it on quality HTTP nodes. - In
/quality/app, edit/save/review/approve a contract. Baseline recipe also needs an explicitly approved reference and threshold/action. - Set Config
baseUrl,contractId,baselineIdwhen needed, the actual originalfileContent, its format and a fresh stableidempotencyKey. For a binary upstream file, supply its original UTF-8 bytes to Upload; do not substitute the parsed report. Configure the incoming trigger yourself for your account/service. - Review the workflow and set
operatorConfigured: true. Configure a separate destination credential named Your CRM/database destination and an endpoint accepting the original CSV/JSONL. SetdestinationEnabled: trueonly after destination review. A real CRM adapter may parse the checked file after fingerprint verification; preserve identifiers and decimal strings. - Enable n8n's built-in
cryptomodule for the runner (NODE_FUNCTION_ALLOW_BUILTIN=crypto). The SHA256 verification node fails closed if it is unavailable. Never disable fingerprint verification to bypass this setup.
Recipes:
| File | Workflow |
|---|---|
lead-preflight.n8n.json | Original lead file → approved contract → quoted check → continue → exact original download → SHA256 verification → destination |
baseline-preflight.n8n.json | Order/inventory file → exact approved baseline → drift check → destination or review |
correction-replay.n8n.json | Original rejected receipt → genuinely changed corrected file → new quote/key → check → destination or review |
Polling stops after 25 status reads. HTTP errors/timeouts, warnings, blocks, unknown states, incomplete reports and changed original downloads reach Review required. That node stops the execution; it does not send external notifications. Configure reviewer notification separately with your own account/authorization. Only continue reaches a destination automatically.
The destination receives downloaded original file bytes. Validation report JSON is never sent as the dataset. Source retention is 24 hours even though reports last seven days; obtain the original promptly. Keep the same quote/key on retries; new corrected bytes require a new key and quote.
Discovery and publishing
server.json describes the active Registry listing ai.contentsweep/data-quality-gate version 1.0.0 at /v1/quality/mcp/, with a required secret organization key. capabilities.json, llms.txt and ard.json describe bounded implemented capabilities. Registry publication requires actual qualified HTTPS API/worker/MCP and n8n evidence matching the installed source fingerprint, exact descriptor review and owned DNS authentication. The existing active listing was read back on November 1, 2026; changed future descriptors still require reviewed qualification.
Use the creator submission packet after shared creator eligibility and the existing first-template queue are verified. Do not overwrite supplier-feed examples or publish private prospect packets, customer files, API keys or raw n8n execution logs.
scripts/publish-quality-examples.py prepares a separate allowlisted payload for founder-sweep/data-quality-gate-examples without network mutation. --publish requires exact owner-reviewed repository/payload/source hashes and matching deployed HTTPS runtime proof; customer/private/unmanaged material is rejected. It checks remote HEAD even after an uncertain push. scripts/publish-quality-registry.py has a separate exact descriptor/namespace/HTTPS qualification gate. Historical local qualification did not publish these assets; the repository and Registry listing were subsequently published. Changed material needs new exact review and matching release proof.
Tutorial series
Start with lead CSV preflight, a duplicate at record 12,002, and warning review. The owned website then covers missing identifiers, unexpected statuses, exact numeric ranges, approved row-count drift and correction replay. Each guide offers full synthetic inputs, explicit rules, observed output and local reproduction instructions. Publication follows a finite reviewed backlog; exhausted weeks maintain existing material.