Open-source B2B and marketplace ecommerce; new stores include an MCP server for AI agents.
Universe MCP by usefulapi
Overview
Description from the maker (original English)
Read events, ticket types, orders, attendees and daily ticket sales in Universe.
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 checksi3 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
Install
Pick the AI app you use, then copy the settings.
Before you install
- Basic checks: 3 of 3 passed
- Runs on the maker’s server: what you ask it goes through their server.
- Can do 9 things (tools) universe_get_viewer, universe_list_events, universe_get_event, universe_list_ticket_types …
- 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://universe.usefulapi.io/mcpRun this in your terminal
claude mcp add --transport http universe https://universe.usefulapi.io/mcpOr copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"universe": {
"url": "https://universe.usefulapi.io/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": {
"universe": {
"type": "http",
"url": "https://universe.usefulapi.io/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://universe.usefulapi.io/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
Tool names and descriptions exactly as the server reported them on Nov 6, 2026. The maker wrote them, not us; we show them as plain text.
universe_get_viewerReturn the signed-in Universe user and the host accounts they can manage (team memberships). Use a host id with universe_list_events. Read-only.
universe_list_eventsList events (id, title, url, state, first date, venue, tickets sold). Without hostId it lists the signed-in user's own events; with hostId it lists that host account's events (ids come from universe_get_viewer). Read-only.
universe_get_eventFetch one event by id: description, address, dates, capacity, tickets sold, sales amount, category and host. For ticket types use universe_list_ticket_types. Read-only.
universe_list_ticket_typesList the ticket types (rates) of an event: name, price, capacity, sold count, state and sales window. Read-only.
universe_list_time_slotsList the dates and time slots of an event (start, end, capacity, tickets sold, state). Optionally filter by start date range (YYYY-MM-DD). Read-only.
universe_list_ordersList the orders of an event: buyer name and email, state, price breakdown, created and updated time. Filter by order state, text match or updated-since time. Contains buyer personal data. Read-only.
universe_get_orderFetch one order by id: buyer, state, cost breakdown, time slot, checkout answers and the ticket items with their check-in state. Read-only.
universe_list_attendeesList the attendees (ticket holders) of an event: name, email, ticket type, time slot, ticket state and checkout answers. Filter by ticket state, text match or time slot. Contains personal data. Read-only.
universe_event_sales_by_dayReturn ticket sales per day for an event between two dates (YYYY-MM-DD, inclusive). Read-only.
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 usefulapi.io (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
- ✓ Pass
Endpoint responds
Responded in 159 ms (HTTP 200)
- – Not applicable
Sign-in with OAuth
No sign-in needed
- ✓ Pass
No hidden instructions in tool descriptions
Read 9 tool descriptions and found no hidden instructions to the AI
Compared with others in Online shops & paymentsi
- More stars than 0% of the other 1744 servers in this category
- Published to the registry more recently than 96% of the other 1744 servers in this category
- Basic checks equal to or better than 100% of the other 1744 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 Universe MCP by usefulapi safe?
It passed 3 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?
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 (1.5.3) reached the registry yesterday.
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.
Universe MCP by usefulapi
Use your Universe account from Claude, Cursor, or any MCP client. Read events, ticket types, time slots, orders, attendees and daily ticket sales. Hosted, no local install: connect with your own credentials.
Live endpoint: https://universe.usefulapi.io/mcp · Homepage: https://usefulapi.io
Connect
- Claude (claude.ai, Desktop): open Customize → Connectors, click + Add → Add custom connector, and paste
https://universe.usefulapi.io/mcp. - Claude Code:
claude mcp add --transport http universe https://universe.usefulapi.io/mcp, then run/mcpto log in. - VS Code: Add to VS Code.
- Cursor and other clients: add the URL as a remote MCP server:
{
"mcpServers": { "universe": { "url": "https://universe.usefulapi.io/mcp" } } }
Add only the URL. Do not add an Authorization header or an API key to the client config: the server signs you in with OAuth, and you sign in with your Universe account.
Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/universe/
On first connect you sign in to Universe and approve access. The server stores the access per user. It only reads data. No keys go in config files.
Tools
| Tool | Type | What it does |
|---|---|---|
universe_get_viewer | read | Who am I |
universe_list_events | read | List events |
universe_get_event | read | Get one event |
universe_list_ticket_types | read | List ticket types |
universe_list_time_slots | read | List time slots |
universe_list_orders | read | List orders |
universe_get_order | read | Get one order |
universe_list_attendees | read | List attendees |
universe_event_sales_by_day | read | Event sales by day |
universe_usage_status | meta | Usage status (free-tier meter) |
universe_request_feature | meta | Request a missing feature |
universe_upgrade | meta | Upgrade to Pro or Pro+ |
universe_cancel_subscription | meta | Cancel the Pro subscription |
read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.
Pricing
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 50 tool calls / month |
| Pro (per user) | $9/mo or $90/yr (2 months free) | Unlimited* |
\*Pro has a fair use limit of 10,000 tool calls a month on this server. For more, write to support@usefulapi.io.
Pro covers this server only. Subscribe with universe_upgrade (it returns a Stripe Checkout link). Cancel any time with universe_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running universe_upgrade before then undoes the cancel. Or write to support@usefulapi.io.
License
MIT — see LICENSE. Documentation only; the server is hosted.