Spec Driven Development
by formulahendry
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Runs on your computer★ 440MITUpdated 14 months ago
Install
Mailpal
Overview
Description from the maker (original English)
List, inspect, and run saved HTTP requests from MailPal collections; write tools on Pro
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: Other
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:
MAILPAL_WORKSPACE,MAILPAL_HISTORY_DIR
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": {
"mailpal": {
"command": "npx",
"args": [
"-y",
"mailpal-mcp"
],
"env": {
"MAILPAL_WORKSPACE": "your-value",
"MAILPAL_HISTORY_DIR": "your-value"
}
}
}
}Run this in your terminal
claude mcp add mailpal --env MAILPAL_WORKSPACE=your-value --env MAILPAL_HISTORY_DIR=your-value -- npx -y mailpal-mcpFill 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": {
"mailpal": {
"command": "npx",
"args": [
"-y",
"mailpal-mcp"
],
"env": {
"MAILPAL_WORKSPACE": "your-value",
"MAILPAL_HISTORY_DIR": "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": {
"mailpal": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"mailpal-mcp"
],
"env": {
"MAILPAL_WORKSPACE": "your-value",
"MAILPAL_HISTORY_DIR": "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
MAILPAL_WORKSPACEenvFolder containing the .mailpal collections directoryMAILPAL_HISTORY_DIRenvWhere run history is written (default ~/.mailpal/history)
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 7, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account michaelyousrie, 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 Otheri
- More stars than 0% of the other 18349 servers in this category
- Published to the registry more recently than 21% of the other 18349 servers in this category
- Basic checks equal to or better than 100% of the other 18349 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 Mailpal 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 (0.1.1) reached the registry 3 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: Spec Driven Development, Remote Desktop Commander, arr-mcp
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
Remote Desktop Commander
by desktop-commander
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
Runs in the cloud★ 211Updated 2 days ago
Install
arr-mcp
by bardesss
One server, 40 tools, the whole media stack: *arrs, Jellyfin, Plex, Seerr, Cleanuparr, downloaders
Runs on your computerUpdated today
Install
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.
MailPal
The honest API client for VS Code.
Collections, variables, unlimited history, an MCP server for AI agents, and a free tier that stays free.
Install from the VS Code Marketplace
Why MailPal exists
The most popular REST client for VS Code has 7.4 million installs and a 2.5 star rating, because its free tier slowly moved everything, including your own request history, behind a paywall.
MailPal makes the opposite promise, and treats it like a contract:
- The free tier is fully usable for a single user, forever.
- Unlimited requests, unlimited collections, unlimited local history.
- Pro adds new value only. It never gates access to your own data.
- If a license lapses, Pro features stop. Everything else keeps working.
Highlights
- Full request builder with a Postman-style editor: auto-growing key/value rows, header autocomplete, color-coded JSON editing with format and validation
- Auto headers surfaced, so you see and control everything sent on the wire
- Syntax-highlighted responses (JSON and XML), HTML raw/preview toggle, resizable request/response split
- Per-collection variables with
{{VAR}}placeholders; secret values live in your OS keychain, never in files - Unlimited local history with one-click re-send
- Import Postman v2.1, Thunder Client, OpenAPI 3.x, and curl; export Postman and curl
- Assertions per request with pass/fail on every send
- A bundled MCP server, registered with VS Code agent mode automatically, so AI agents can list, run, and (with Pro) create requests
For AI agents (MCP)
The MCP server also ships standalone on npm as mailpal-mcp:
claude mcp add mailpal -- npx -y mailpal-mcpWorks with any MCP client (Cursor, Claude Desktop, and friends) via npx -y mailpal-mcp.
Support
Questions, bugs, and feature requests: open an issue.
This repository hosts the project's public home, issues, and media. The extension itself ships through the VS Code Marketplace.