Spree Commerce: open-source B2B and marketplace ecommerce
Open-source B2B and marketplace ecommerce; new stores include an MCP server for AI agents.
Description from the maker (original English)
Manage MailBluster leads, custom fields, products and orders: look up, add and update records.
These three are never merged into one score: opinions, measurements and popularity are different things.
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
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Works in Claude on the web, desktop and mobile:
https://mailbluster.usefulapi.io/mcpRun this in your terminal
claude mcp add --transport http mailbluster https://mailbluster.usefulapi.io/mcpPaste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"mailbluster": {
"url": "https://mailbluster.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.
Paste into .vscode/mcp.json in your project
{
"servers": {
"mailbluster": {
"type": "http",
"url": "https://mailbluster.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:
https://mailbluster.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.
Tool names and descriptions exactly as the server reported them on Nov 8, 2026. The maker wrote them, not us; we show them as plain text.
mailbluster_list_fieldsList the brand's custom lead fields: id, label and merge tag. Use the merge tags as keys of `fields` when creating or updating leads. GET /fields.
mailbluster_create_fieldWRITE: create a custom lead field. The merge tag is the key used in lead `fields` and in email templates. Creating a field changes the brand's data model but sends nothing. POST /fields.
mailbluster_get_leadGet one lead by email address (the server computes the MD5 id MailBluster uses): name, custom fields, timezone, subscribed and opt-in status, tags, created/updated dates. MailBluster has no list-leads endpoint. GET /leads/{md5(email)}.
mailbluster_create_leadWRITE: add a lead (contact) to the brand. `subscribed` defaults to FALSE: the lead is stored but is not subscribed to email. Only set subscribed=true when the person has given consent to receive email from this brand (the user is responsible for lawful consent); this server never
mailbluster_update_leadWRITE: change an existing lead's name, custom fields, email, timezone, IP address, subscription flag or tags (send only what should change). `subscribed` is left alone unless you pass it; false unsubscribes the lead, true re-subscribes. Only set subscribed=true when the person ha
mailbluster_list_productsList product records (id, name, dates) the brand has registered for e-commerce tracking. Paged: the reply's meta has total and nextPageNo (null on the last page). GET /products.
mailbluster_get_productGet one product record by the id you registered it under. GET /products/{product_id}.
mailbluster_create_productWRITE: register a product record (your own id plus a name) so orders can reference it. Sends nothing to anyone and charges nothing. POST /products.
mailbluster_update_productWRITE: rename a product record. PUT /products/{product_id}.
mailbluster_list_ordersList order records (id, currency, total price, customer lead, campaign, line items). These are records kept in MailBluster for tracking; no payment is involved. Paged: see meta.nextPageNo. GET /orders.
mailbluster_get_orderGet one order record by the id it was created with. GET /orders/{order_id}.
mailbluster_create_orderWRITE: record an order (a tracking record: it does not take payment, charge a card or send email). The customer's email becomes a lead if none exists, and the lead's tags are merged. `customer.subscribed` is REQUIRED because MailBluster would otherwise default it to true: pass fa
mailbluster_update_orderWRITE: change an order record's campaign, currency, total or items (send only what should change; `items`, when given, REPLACES all previous items). The customer cannot be changed here. No payment or email is involved. PUT /orders/{order_id}.
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 9, 2026
The registry name was verified against the domain usefulapi.io (the registry checks domain ownership)
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
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Read 13 tool descriptions and found no hidden instructions to the AI
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
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.
The registry does not list a required key, though some servers ask you to sign in on first use.
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.
The GitHub repo last changed –, and the latest version (1.23.5) reached the registry yesterday.
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.
In the same category: Spree Commerce: open-source B2B and marketplace ecommerce, Stripe MCP, MCP Cn Commerce
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
Open-source B2B and marketplace ecommerce; new stores include an MCP server for AI agents.
Stripe’s official server lets AI view and manage customers, products, payments and invoices. Connect to Stripe’s cloud and sign in with OAuth.
8 read-only MCP platform entries; support is operation-specific; merchant live acceptance pending
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.
Use MailBluster from Claude, Cursor, or any MCP client — look up and add leads, custom fields, products and orders for your e-commerce email marketing. Hosted, no local install: connect with your own MailBluster credentials.
Live endpoint: https://mailbluster.usefulapi.io/mcp · Homepage: https://usefulapi.io/mailbluster
https://mailbluster.usefulapi.io/mcp.claude mcp add --transport http mailbluster https://mailbluster.usefulapi.io/mcp, then run /mcp to log in.{
"mcpServers": { "mailbluster": { "url": "https://mailbluster.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 the login page asks for your MailBluster credentials.
Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/mailbluster/
| Tool | Type | What it does |
|---|---|---|
mailbluster_list_fields | read | List custom lead fields |
mailbluster_create_field | write | Create custom lead field |
mailbluster_get_lead | read | Get lead |
mailbluster_create_lead | write | Create lead |
mailbluster_update_lead | write | Update lead |
mailbluster_list_products | read | List products |
mailbluster_get_product | read | Get product |
mailbluster_create_product | write | Create product |
mailbluster_update_product | write | Update product |
mailbluster_list_orders | read | List orders |
mailbluster_get_order | read | Get order |
mailbluster_create_order | write | Create order record |
mailbluster_update_order | write | Update order record |
mailbluster_usage_status | meta | Usage status (free-tier meter) |
mailbluster_request_feature | meta | Request a missing feature |
mailbluster_upgrade | meta | Upgrade to Pro or Pro+ |
mailbluster_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.
| 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 mailbluster_upgrade (it returns a Stripe Checkout link). Cancel any time with mailbluster_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running mailbluster_upgrade before then undoes the cancel. Or write to support@usefulapi.io.
MIT © usefulapi. Not affiliated with or endorsed by MailBluster.