Open-source B2B and marketplace ecommerce; new stores include an MCP server for AI agents.
Flowcheck
Overview
Description from the maker (original English)
Stripe payouts, Shopify orders, and bank transactions unified for reconciliation and cash flow
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 on your computer
- Transport: stdio
- Category: Online shops & payments
- You need to fill in: FLOWCHECK_API_KEY
Install
Pick the AI app you use, then copy the settings.
Before you install
- Basic checks: 1 of 1 passed
- Runs on your computer with your user’s permissions (files, network, apps).
- You fill in yourself:
FLOWCHECK_API_KEY
Values marked secret are keys to your account. Never share them or paste them into a chat.
You need
- npmNode.js installed (for the npx command)
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json
{
"mcpServers": {
"flowcheck": {
"command": "npx",
"args": [
"-y",
"@flowcheck/mcp-server"
],
"env": {
"FLOWCHECK_API_KEY": "your-value"
}
}
}
}Run this in your terminal
claude mcp add flowcheck --env FLOWCHECK_API_KEY=your-value -- npx -y @flowcheck/mcp-serverFill 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": {
"flowcheck": {
"command": "npx",
"args": [
"-y",
"@flowcheck/mcp-server"
],
"env": {
"FLOWCHECK_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": {
"flowcheck": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@flowcheck/mcp-server"
],
"env": {
"FLOWCHECK_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 one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.
Your choice stays on this device in a cookie; no account needed.
Values you fill in
- Your FlowCheck API key (fc_live_... or fc_test_...)
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
What it can do
Runs on your computer; the tool list appears in your AI app after you install it.
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 with the GitHub account eliaskress, which owns the repo
- … 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 applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
- – Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
- … Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints
Compared with others in Online shops & paymentsi
- More stars than 0% of the other 1743 servers in this category
- Published to the registry more recently than 2% of the other 1743 servers in this category
- Basic checks equal to or better than 100% of the other 1743 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 Flowcheck 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?
You need to fill in: FLOWCHECK_API_KEY
Does it run on my computer or in the cloud?
It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).
Is it still maintained?
The GitHub repo last changed –, and the latest version (0.2.3) reached the registry 8 months ago.
Which apps can use it?
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.
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.
@flowcheck/mcp-server
MCP server for the FlowCheck API — give Claude, Cursor, or any MCP client access to your Stripe payouts and bank transactions.
Setup
Claude Code
claude mcp add flowcheck \
--transport stdio \ --env FLOWCHECK_API_KEY=fc_live_... \ -- npx -y @flowcheck/mcp-server
Claude Desktop
Add to your claude_desktop_config.json:
{
"mcpServers": { "flowcheck": { "command": "npx", "args": ["-y", "@flowcheck/mcp-server"], "env": { "FLOWCHECK_API_KEY": "fc_live_..." } } } }
Cursor
Add to your .cursor/mcp.json:
{
"mcpServers": { "flowcheck": { "command": "npx", "args": ["-y", "@flowcheck/mcp-server"], "env": { "FLOWCHECK_API_KEY": "fc_live_..." } } } }
Environment variables
| Variable | Required | Description |
|---|---|---|
FLOWCHECK_API_KEY | Yes | Your FlowCheck API key (fc_live_... or fc_test_...) |
FLOWCHECK_BASE_URL | No | Override the API base URL (default: https://developer.usepopup.com/api/v0) |
Available tools
| Tool | Parameters | Description |
|---|---|---|
flowcheck_register | email | Create account (no key needed) |
flowcheck_get_registration_status | token | Check registration / retrieve API key |
flowcheck_get_balance | — | Stripe + bank balances |
flowcheck_get_cashflow | window? (7d, 30d, 90d) | Revenue, expenses, net by day |
flowcheck_list_payouts | status?, from?, to?, limit?, cursor? | Stripe payouts with match status |
flowcheck_get_payout | id | Single payout with bank match |
flowcheck_list_transactions | from?, to?, limit?, cursor? | Bank transactions from Plaid |
flowcheck_list_discrepancies | status?, type?, limit?, cursor? | Missing or mismatched amounts |
flowcheck_get_reconciliation_summary | — | 30-day financial health score |
flowcheck_get_reconciliation | payout_id | Per-payout reconciliation detail |
flowcheck_get_position | — | Full financial snapshot for AI agents |
flowcheck_get_alerts | — | Active issues and discrepancies |
flowcheck_connect_stripe | restricted_key | Connect Stripe account |
flowcheck_create_plaid_link_token | — | Start Plaid bank connection |
flowcheck_exchange_plaid_token | public_token | Complete Plaid connection |
flowcheck_list_webhooks | — | List webhook endpoints |
flowcheck_create_webhook | url, events | Register webhook endpoint |
flowcheck_delete_webhook | id | Remove webhook endpoint |
Example prompts
After connecting the MCP server, try asking:
- "What's my current balance across Stripe and my bank?"
- "Show me last week's payouts and whether they all landed in my bank"
- "Are there any missing deposits or discrepancies?"
- "What did we make this month?"
- "Give me a financial health summary"
Get an API key
Sign up at developer.usepopup.com to get your API key. 7-day free trial with 100 credits included.
License
MIT