World Monitor
Real-time global intelligence on conflict, markets, energy, trade, shipping and cyber. 102 tools.
Runs in the cloud✓ service owner · worldmonitor.app
Postbag MCP
What it does
Form backend that routes: one tool per Postbag API operation, plus quickstart and explain.
- Connects Runs on your computer
- Account or key Needs POSTBAG_API_KEY
- Category Other
Install
Pick the AI app you use, then copy the settings.
Passed 3/3 checks · Runs on your computer · ✓ Commands checked Nov 13, 2026
First: which AI do you use?
Pick your app and the steps appear below.
Install Node.js
One time only; it works for every server that needs Node.js
Sign up and create a Postbag MCP key
Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.
Open the Claude desktop app’s settings file
SettingsDeveloperEdit Config
Paste these settings and save the file
{ "mcpServers": { "postbag": { "command": "npx", "args": [ "-y", "@postbag/mcp" ], "env": { "POSTBAG_API_KEY": "your-value", "POSTBAG_API_URL": "your-value" } } } }Paste the key only into the app’s field, never into a chat or to anyone
Quit Claude and open it again
Try it
Use Postbag MCP and tell me what you can do for me, then show me one thing✓ If Claude says it is using Postbag MCP or shows a Postbag MCP tool in the answer, you are connected
Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version
ChatGPT cannot connect Postbag MCP yet
Postbag MCP runs on your computer, but ChatGPT can only connect servers that run on the web
What you can do instead
A · Use an app that can connect Postbag MCP
- You need a Postbag MCP key (create it on the maker’s site) · Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone
- You need a Postbag MCP key (create it on the maker’s site) · Install Node.js on your computer first (one time)
- You need a Postbag MCP key (create it on the maker’s site) · Install Node.js on your computer first (one time)
- You need a Postbag MCP key (create it on the maker’s site) · Install Node.js on your computer first (one time)
B · Others in Other that work with ChatGPT
Picked from the most used in the same category, only ones that connect by address with no key
- Hostinger✓ ChatGPT
- World Monitor✓ ChatGPT
- Svelte MCP✓ ChatGPT
Works with Claude Code, with some setup first
You need a Postbag MCP key (create it on the maker’s site) · Install Node.js on your computer first (one time)
Install Node.js
One time only; it works for every server that needs Node.js
Sign up and create a Postbag MCP key
Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.
Open Terminal
Mac: press Command+Space and type Terminal · Windows: open PowerShell
Paste this command and press Enter
claude mcp add --scope user postbag --env POSTBAG_API_KEY=your-value --env POSTBAG_API_URL=your-value -- npx -y @postbag/mcpReplace “your-value” with your key before pressing Enter
Paste the key only into the app’s field, never into a chat or to anyone
Type /mcp in Claude Code
You should see Postbag MCP listed as connected
Try it
Use Postbag MCP and tell me what you can do for me, then show me one thing✓ If Claude Code says it is using Postbag MCP or shows a Postbag MCP tool in the answer, you are connected
Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version
Works with Cursor, with some setup first
You need a Postbag MCP key (create it on the maker’s site) · Install Node.js on your computer first (one time)
Install Node.js
One time only; it works for every server that needs Node.js
Sign up and create a Postbag MCP key
Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.
Fill in your key
In the Postbag MCP settings, POSTBAG_API_KEY, POSTBAG_API_URL is empty; add your key and save
Paste the key only into the app’s field, never into a chat or to anyone
Open the AI chat in Cursor in Agent mode
Try it
Use Postbag MCP and tell me what you can do for me, then show me one thing✓ If Cursor says it is using Postbag MCP or shows a Postbag MCP tool in the answer, you are connected
Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version
Works with VS Code, with some setup first
You need a Postbag MCP key (create it on the maker’s site) · Install Node.js on your computer first (one time)
Install Node.js
One time only; it works for every server that needs Node.js
Sign up and create a Postbag MCP key
Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.
Fill in your key
In the Postbag MCP settings, POSTBAG_API_KEY, POSTBAG_API_URL is empty; add your key and save
Paste the key only into the app’s field, never into a chat or to anyone
Open the AI chat in VS Code in Agent mode
Try it
Use Postbag MCP and tell me what you can do for me, then show me one thing✓ If VS Code says it is using Postbag MCP or shows a Postbag MCP tool in the answer, you are connected
Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version
Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.
JSON settings are under “For developers” below
For developers: Terminal commands and JSON settings
Installed on your computer
Claude Code
claude mcp add --scope user postbag --env POSTBAG_API_KEY=your-value --env POSTBAG_API_URL=your-value -- npx -y @postbag/mcpClaude Desktop (claude_desktop_config.json)
{
"mcpServers": {
"postbag": {
"command": "npx",
"args": [
"-y",
"@postbag/mcp"
],
"env": {
"POSTBAG_API_KEY": "your-value",
"POSTBAG_API_URL": "your-value"
}
}
}
}Cursor (~/.cursor/mcp.json)
{
"mcpServers": {
"postbag": {
"command": "npx",
"args": [
"-y",
"@postbag/mcp"
],
"env": {
"POSTBAG_API_KEY": "your-value",
"POSTBAG_API_URL": "your-value"
}
}
}
}VS Code (mcp.json)
{
"servers": {
"postbag": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@postbag/mcp"
],
"env": {
"POSTBAG_API_KEY": "your-value",
"POSTBAG_API_URL": "your-value"
}
}
}
}Values you fill in
POSTBAG_API_KEYsecret required envA Postbag API key (pb_live_… or pb_test_…). Mint one at https://postbag.dev/app or with `postbag login`.POSTBAG_API_URLenvBase URL of the Postbag API. Defaults to https://postbag.dev — set this only for a self-hosted instance.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
At a glance
- Downloads per weeki
- 33/wk
- Verified domain
- ✓ postbag.dev
- Connection
- Runs on your computer
- Latest versioni
- 0.1.1
- Published to registryi
- Aug 21, 2026
- Code last changedi
- Sep 21, 2026
- Maker
- faahim
- Packages
npm: @postbag/mcp- Website
- postbag.dev
- Registry status
- Active
Which apps can use it
Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.
Run on your computer in
ClaudeGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatRaycast
Related guides
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 13, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified against the domain postbag.dev (the registry checks domain ownership)
- ✓ Pass
Still maintained
Code last changed 2 months ago
- ✓ Pass
Has a licence
Uses AGPL-3.0
- – 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
Discussion
Ask, share a tip or report that it does not work. Sorted by what people marked helpful.
No posts yet. Be the first to ask or share.
Posts here are written by users, not the PopNx team.
User reviews
No reviews yet
Compared with others in Otheri
- More stars than 0% of the other 19643 servers in this category
- Published to the registry more recently than 26% of the other 19643 servers in this category
- Basic checks equal to or better than 100% of the other 19643 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 Postbag MCP 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?
You need to fill in: POSTBAG_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 2 months ago, 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: World Monitor, Claude Flow, Windmill
Others in the same category
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
Claude Flow
AI orchestration with hive-mind swarms, neural networks, and 87 MCP tools for enterprise dev.
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.
Postbag
A form backend that routes. Point any HTML form at a Postbag endpoint and it lands in your inbox — then goes wherever it should: email, Telegram, a webhook, a partner, your CRM. Built for people who run many sites, and for the AI agents that build them.
<form action="https://api.postbag.dev/s/fm_8f3kq2" method="POST">Send
That's the whole integration for one form. Everything else — grouping forty forms into one stream, mapping their different fields onto one shape, sending that shape to a partner between two dates, a daily digest, never losing a submission — is there when you need it and invisible when you don't.
New here (human or AI agent)? Read [`CLAUDE.md`](./CLAUDE.md) first.
Why it exists
Every website has forms. Every form needs somewhere to go. Formspree and friends solve "somewhere" for one site; they fall over when you have fifteen sites feeding one partner with fifteen slightly different forms. Postbag is the source of truth for what each form collects, what each downstream system receives, and the versioned contract between them.
The one idea
The database makes it correct; events make it fast.
A submission is accepted the instant it is a row. Delivery is a durable outbox that a worker drains with retries. Realtime nudges are an accelerator, never a transport. If every event stream in the system died, every submission would still arrive — late, never lost. (Inherited from the lead pipeline this generalises; see docs/ARCHITECTURE.md.)
Status
Phase 1 — MVP live at postbag.dev (site, docs, dashboard at /app, API at /v1). See PROGRESS.md for the live blueprint and docs/ROADMAP.md for phases.
Documentation
Start at docs/README.md.
License
The server, dashboard, site and domain packages (apps/*, packages/core, packages/db, packages/auth) are licensed under AGPL-3.0. The client packages that run inside your own code — @postbag/sdk, the postbag CLI and @postbag/mcp — are MIT. Rationale in ADR-006.