P2Flux MCP

Name: P2Flux MCP
Author: P2Flux

by P2Fluxversion 0.3.4i★ –iComputer or cloud

Registry nameio.github.P2Flux/mcp

Install

Overview

Description from the maker (original English)

Let your AI assistant pay for web content in USDC (x402) within a budget you set.

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: Computer or cloud
Transport: stdio, Streamable HTTP
Category: Other

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
You fill in yourself: P2FLUX_NETWORK

You need

Runs in the cloudNothing to install; it connects over the internet
npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

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://agent.p2flux.com/mcp

Or run it on your computer

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "p2flux": {
      "command": "npx",
      "args": [
        "-y",
        "@p2flux/mcp"
      ],
      "env": {
        "P2FLUX_NETWORK": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add --transport http p2flux https://agent.p2flux.com/mcp

Or run it on your computer

claude mcp add p2flux --env P2FLUX_NETWORK=your-value -- npx -y @p2flux/mcp

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "p2flux": {
      "url": "https://agent.p2flux.com/mcp"
    }
  }
}

Or run it on your computer

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "p2flux": {
      "command": "npx",
      "args": [
        "-y",
        "@p2flux/mcp"
      ],
      "env": {
        "P2FLUX_NETWORK": "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.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "p2flux": {
      "type": "http",
      "url": "https://agent.p2flux.com/mcp"
    }
  }
}

Or run it on your computer

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "p2flux": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@p2flux/mcp"
      ],
      "env": {
        "P2FLUX_NETWORK": "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.

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://agent.p2flux.com/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

P2FLUX_NETWORK env
test = Base Sepolia (free test money), live = Base with real USDC

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

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 P2Flux, 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 checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Otheri

More stars than 0% of the other 32572 servers in this category
Published to the registry more recently than 58% of the other 32572 servers in this category
Basic checks equal to or better than 100% of the other 32572 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 P2Flux MCP 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?

Either way works: install it on your computer or connect to the cloud version.

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.3.4) reached the registry 29 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: Spec Driven Development, Remote Desktop Commander, AvaHR

Alternatives

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Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

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Runs on your computer★ 440MITUpdated 14 months ago

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Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

Runs in the cloud★ 211Updated yesterday

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Runs in the cloudUpdated today

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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.

P2Flux MCP — let your AI assistant pay for web content

Some websites ask AI assistants to pay a few cents to read an article or use their data. This gives your assistant a small wallet on your own computer and lets it pay those sites for you — never more than the limits you set. P2Flux never holds your money or your key.

Claude Desktop (no technical knowledge needed)

Download p2flux.mcpb and double-click it. Claude Desktop asks you to install it.
In the form, leave Money on test the first time, and set your limits (default: 0.50 USDC per page, 5 USDC per day).
Ask Claude: "Set up my P2Flux wallet." Claude shows the wallet's address and how to add money.

Test: free test money from https://faucet.circle.com (choose *Base Sepolia*).
Real money: in the Coinbase app choose *Send → USDC → Base network* and paste the address. Send a small amount. Treat it like cash in a pocket.

Use it: *"Find articles about soup recipes I can buy"*, *"Read this page: https://…"*, *"How much have I spent?"*

If the computer is lost, the wallet on it is lost. Keep small amounts.

Claude Code, Cursor and other MCP clients

claude mcp add p2flux -e P2FLUX_NETWORK=test -- npx -y @p2flux/mcp

real USDC on Base:

claude mcp add p2flux -e P2FLUX_NETWORK=live -- npx -y @p2flux/mcp

Variable	Default	Meaning
`P2FLUX_NETWORK`	`test`	`test` = Base Sepolia, `live` = Base with real USDC
`P2FLUX_MAX_PER_PAYMENT`	`0.50`	most for one page
`P2FLUX_MAX_PER_DAY`	`5`	most in 24 hours
`P2FLUX_MAX_PREPAID`	`1`	most to put aside at one site; `0` = pay every page on its own
`P2FLUX_MAX_CONFIRMED`	`1000`	most for one payment you confirm in a dialog (see below)
`P2FLUX_MCP_DIR`	`~/.p2flux-mcp`	where the wallet, the spending log and access tokens are kept
`P2FLUX_API_URL`	P2Flux API of the network	another P2Flux API (https, or http://localhost)
`P2FLUX_RPC_URL`	public Base RPC	your own Base RPC (https, or http://localhost)

P2FLUX_MAX_CONFIRMED, P2FLUX_API_URL and P2FLUX_RPC_URL are set in the environment only. The Claude Desktop form does not show them.

Access tokens a site gives for a subscription are kept in access.json in P2FLUX_MCP_DIR, per site, until they expire. Delete that file to forget them all.

Listed in the MCP Registry as io.github.P2Flux/mcp, on Smithery and on Glama.

What it does, and does not

Pays pages that ask with HTTP 402 (the x402 standard) in USDC on Base. Nothing else.
Checks the price against your limits before signing, and signs exactly that price. A site that changes the price between the check and the payment gets nothing.
Keeps a spending log on your computer; the daily limit survives restarts.
Money put aside at a site and not used comes back when you ask (*"take my unused balance at that site back"*) once 0.10 USDC of it was used or after a day without use, and on its own after a week without use when it is 0.50 USDC or more.
Your limits are a budget: inside it (default 0.50 USDC per payment, 5 USDC a day) payments go through on their own. Above it, your app asks YOU in a dialog - the assistant cannot answer it - with the amount, the site and what the site says it sells; nothing is paid unless you confirm, and never more than P2FLUX_MAX_CONFIRMED (default 1000 USDC). Apps that cannot show such a dialog refuse the payment instead.
Some sites sell a period instead of one page - for example a tipster's subscription for 30 days, at the price people pay for it. The site answers with an access token, which is kept on your computer for that site only and sent back to it, so later pages there are read without paying until it expires. check_price shows what the site says a payment buys.
The key is in one file only you can read. It is never sent anywhere, and no tool can reveal it - so nothing an assistant reads on the web can talk it into giving the key away. To move the wallet elsewhere, run npx -p @p2flux/mcp p2flux-mcp export-key in a terminal yourself.
ChatGPT and the claude.ai website cannot run a program on your computer. For them there is the remote server below: no wallet is kept anywhere; you approve each payment in your own browser wallet.

Development

npm install && npm test          # unit tests

npm run build node test/live.mjs # live on Base Sepolia (see the file) npx @anthropic-ai/mcpb pack . p2flux.mcpb

ChatGPT and claude.ai (remote server)

p2flux-mcp-remote is the same idea for assistants that only connect to servers on the internet. It holds no wallet, no balance and no history, and needs no login. Tools: find_paid_content, check_price, request_paid_page, get_paid_page.

Hosted server

P2Flux runs this server. Add it as a custom connector in claude.ai or ChatGPT (developer mode), authentication: none.

Real USDC on Base: https://agent.p2flux.com/mcp
Test money on Base Sepolia: https://agent-test.p2flux.com/mcp

Each payment is approved by you in your own browser wallet. The server never holds your money or a key.

How it works

The assistant asks for a paid page. It gets a link, and shows it to you.
You open the link. The page shows the amount, the page and the seller's address. You approve in your own wallet (Coinbase Wallet, MetaMask…): one signature for exactly that amount, no network fee.
The page is paid and fetched at once; the assistant reads it.

Only sites paid through P2Flux can be paid, only in USDC on Base, and never more than P2FLUX_REMOTE_MAX_PRICE (default 1000 USDC). Above P2FLUX_REMOTE_CONFIRM_ABOVE (default 5 USDC) - a subscription, say - the person is asked twice: the assistant must first ask them and pass their budget as max_price, and the approval page shows the amount and what the site says it sells, with a box to tick before the wallet opens. P2FLUX_REMOTE_SECRET (32+ characters) seals access tokens to their site across restarts. The server reads only public https websites.

Run your own

P2FLUX_PUBLIC_URL=https://agent.example.com P2FLUX_NETWORK=test PORT=8787 npx -p @p2flux/mcp p2flux-mcp-remote

Put it behind https (nginx) with P2FLUX_TRUST_PROXY=1, then add https://agent.example.com/mcp as a custom connector in claude.ai or ChatGPT (developer mode), authentication: none.

Variable	Default	Meaning
`P2FLUX_PUBLIC_URL`	(required)	the https address this server is reachable at
`P2FLUX_NETWORK`	`test`	`test` = Base Sepolia, `live` = Base with real USDC
`P2FLUX_REMOTE_MAX_PRICE`	`1000`	most for one payment
`P2FLUX_REMOTE_CONFIRM_ABOVE`	`5`	above this the person is asked twice
`P2FLUX_REMOTE_SECRET`	(random per start)	32+ characters; keeps access tokens valid across restarts
`P2FLUX_TRUST_PROXY`	off	`1` behind nginx: the client address comes from `X-Forwarded-For`
`P2FLUX_REMOTE_ALLOW_LOCAL`	off	`1` lets the server read http://localhost pages; test money only
`P2FLUX_API_URL`	P2Flux API of the network	another P2Flux API
`P2FLUX_RPC_URL`	public Base RPC	your own Base RPC
`HOST`, `PORT`	`127.0.0.1`, `8787`	where it listens

Limits today: a browser wallet extension is needed (no WalletConnect / phone wallets yet); one approval per page (no prepaid balance).

P2Flux MCP

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Or run it on your computer

Or run it on your computer

Or run it on your computer

Or run it on your computer

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

AvaHR

README from the maker

P2Flux MCP — let your AI assistant pay for web content

Claude Desktop (no technical knowledge needed)

Claude Code, Cursor and other MCP clients

real USDC on Base:

What it does, and does not

Development

ChatGPT and claude.ai (remote server)

Hosted server

How it works

Run your own