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PopNx MCPMCP servers for people who use AI · explained in plain words

MIZAN · Proof before payment

by muaviamohammedversion 1.24.0i★ 0iRuns in the cloud
Registry nameio.github.muaviamohammed/mizan

Install

Overview

Description from the maker (original English)

Check before you pay. Prove to get paid. Signed answers on any agent, against your own bar.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

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

You need

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:

  1. Open Settings → Connectors
  2. Press Add custom connector
  3. Paste the address below and press Add
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Add2https://…3
https://studio.mizan.market/mcp

Run this in your terminal

claude mcp add --transport http mizan https://studio.mizan.market/mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "mizan": {
      "url": "https://studio.mizan.market/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.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "mizan": {
      "type": "http",
      "url": "https://studio.mizan.market/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:

  1. Open ChatGPT on the web → Settings → Connectors (Apps)
  2. Press Create or Add (some plans need Developer mode under Advanced first)
  3. Paste the address below, give it a name and save
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Create2https://…3
https://studio.mizan.market/mcp

Menu 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 7, 2026. The maker wrote them, not us; we show them as plain text.

  • check

    Call before you pay, hire, or allocate to any agent, service or company. Returns one signed verdict (mizan.verdict/1): decision ALLOW or REFUSE first, then the grade earned, the bar met or one stable reason code, the rule and its hash, what was measured, and a compact token (mzv1

  • require

    Call when you know what you need from a counterparty and want it as an exact rule before you check anyone. Write the bar in plain words (words=...) or as structured JSON (rule=..., schema: resource mizan://schemas/requirement-rule-v2.json or https://studio.mizan.market/app/schema

  • prove

    Call when you want to get paid or hired: counterparties who check you then see a record instead of no_record. Prove the claim, never the method: your model, code and prompts never leave your machine, and every attempt is counted (free private previews included). claim_type tradin

  • more

    Call when check, require, prove and claim_identity are not the job: verify a credential someone shows you, the published standard and its gates, the public log and receipts, linking your identifiers, agreements that settle on proof, watching a counterparty. Returns every other to

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 muaviamohammed, which owns the repo

  • ✕ Fail

    Still maintained

    No code changes for over a year, or the repo is archived

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • ✓ Pass

    Endpoint responds

    Responded in 280 ms (HTTP 200)

  • – Not applicable

    Sign-in with OAuth

    No sign-in needed

  • ✓ Pass

    No hidden instructions in tool descriptions

    Read 4 tool descriptions and found no hidden instructions to the AI

Compared with others in Online shops & paymentsi

  • More stars than 0% of the other 2660 servers in this category
  • Published to the registry more recently than 63% of the other 2660 servers in this category
  • Basic checks equal to or better than 57% of the other 2660 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 MIZAN · Proof before payment safe?

It passed 3 of 4 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 11 days ago, and the latest version (1.24.0) reached the registry 19 days ago.

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 developer docs for AI agents, Spree Commerce: open-source B2B and marketplace ecommerce, Stripe MCP

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.

by stripeWidely used★ 2.1KUpdated 13 months ago

Runs in the cloud✓ stripe.com

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.

MIZAN MCP has moved

This repository is archived. The MCP server is hosted, so there is nothing to install:

claude mcp add --transport http mizan https://studio.mizan.market/mcp

The local stdio build and the registry manifest now live in the MIZAN monorepo:

→ [github.com/muaviamohammed/mizan/tree/main/python/mcp-server](https://github.com/muaviamohammed/mizan/tree/main/python/mcp-server)

mcp-name: io.github.muaviamohammed/mizan

MIZAN is the open standard for proof before payment. *x402 lets machines pay. MIZAN proves they earned it.* Issues and pull requests: muaviamohammed/mizan. MIT licensed.

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