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
walletcap for Coinbase payments MCP
Overview
Description from the maker (original English)
Spend limits for Coinbase's payments MCP: a per-payment cap and rolling 24h USDC budget per wallet
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
- UsageiEarly↓ 1.1K/wk · ★ –
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
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).
- The registry lists no key to fill in.
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": {
"walletcap": {
"command": "npx",
"args": [
"-y",
"walletcap",
"awal-mcp",
"--wallet",
"your-value"
]
}
}
}Run this in your terminal
claude mcp add walletcap -- npx -y walletcap awal-mcp --wallet your-valueThis one needs values on its command line, so copy the settings and fill them in.
Or copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"walletcap": {
"command": "npx",
"args": [
"-y",
"walletcap",
"awal-mcp",
"--wallet",
"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 needs values on its command line, so copy the settings and fill them in.
Or copy the settings yourself
Paste into .vscode/mcp.json in your project
{
"servers": {
"walletcap": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"walletcap",
"awal-mcp",
"--wallet",
"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.
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 10, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account coriolislabs, 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 2631 servers in this category
- Published to the registry more recently than 87% of the other 2631 servers in this category
- Basic checks equal to or better than 100% of the other 2631 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 walletcap for Coinbase payments MCP 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 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 (0.3.0) reached the registry 3 days 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:↓ 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.
walletcap
Spend limits for AI agent wallets that pay in USDC: a per-payment cap and a rolling 24-hour budget that holds across restarts, replicas on one host and payment rails.
One spend budget per wallet for AI agents: counted across every process, replica, key, permission and payment rail on one host that pays from it. A restart, a second replica, one more key or the next calendar period cannot hand the agent a fresh budget.
npx walletcap-crash-test puts Coinbase's agent spend controls through a restart, 10 replicas, a shared store and a payee who asks for EURC, then puts walletcap through the same events, offline. In eight runs, CDP's controls let $1,600–$1,700 and 1,000 EURC past a $150 cap; walletcap let $0.
The owner creates the budget once; opening it never creates one:
$ npx walletcap set --wallet 0xYourAgentWallet --per-payment 50 --per-day 150import { openBudget } from 'walletcap';const budget = openBudget({ wallet: account.address, perPayment: '$50', perDay: '$150' });
await budget.pay('$12.50', () => sendUsdc(payee, '12.50')); // refused past $150 in any 24h, restarts included
- Per wallet, not per process. Every payment from the wallet reserves against one number.
- Rolling window. "$150 a day" means any 24 hours; there is no boundary to straddle.
- Edits never reset the count. Raising $150 to $200 after spending $150 leaves $50.
- Fail closed. If the count can't be read, nothing pays; a missing file is not a new budget. Unknown outcomes keep counting.
- One SQLite file on one host, shared by every process there and by Python. Each payment reserves inside one write transaction, so replicas racing for the last dollar cannot both win. Not over NFS, SMB or Docker Desktop bind mounts, where SQLite's locks aren't reliable.
- x402 guard, Coinbase CDP spend store, Agentic Wallet wrapper, AgentKit recipe, and an on-chain cap for Spend Permissions.
- Node 22.13+, zero runtime dependencies, Apache-2.0.
$ npx walletcap status$ npx walletcap set --wallet 0xYourAgentWallet --per-payment 0.05 --per-day 0.15 $ npx walletcap freeze
Security: policy · threat model. AccountCapSpender is unaudited; testnet only until an independent audit.
Source, Python package and full documentation · docs for x402, Coinbase CDP spend controls, AgentKit, the Agentic Wallet and payments MCP and Spend Permissions
Apache-2.0. Copyright 2026 Coriolis Labs Inc.