A-Pay Protocol

Name: A-Pay Protocol
Author: neuralaisofficial-lang

by neuralaisofficial-langversion 0.1.8i★ –iComputer or cloud

Registry nameio.github.neuralaisofficial-lang/apay

Install

Overview

Description from the maker (original English)

Universal HTTP 402 Micropayment Protocol & Autonomous Economic Settlement Engine for AI Agents

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 checksi3 of 3 passedChecked from public information; code not scanned yet
UsageiEarly↓ 326/wk · ★ –

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
You need to fill in: APAY_PRIVATE_KEY

Install

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

Before you install

Basic checks: 3 of 3 passed
Runs on the maker’s server: what you ask it goes through their server.
Can do 5 things (tools) apay_request, apay_get_wallet_status, apay_set_budget, apay_inspect_endpoint …
You fill in yourself: APAY_PRIVATE_KEY, APAY_NETWORK, APAY_CURRENCY, APAY_MAX_PER_CALL, APAY_DAILY_BUDGET

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

Runs in the cloudNothing to install; it connects over the internet
PyPIPython’s uv installed (for the uvx 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://apay-network.vercel.app/api/mcp

Or run it on your computer

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

{
  "mcpServers": {
    "apay": {
      "command": "uvx",
      "args": [
        "apay",
        "mcp"
      ],
      "env": {
        "APAY_PRIVATE_KEY": "your-value",
        "APAY_NETWORK": "your-value",
        "APAY_CURRENCY": "your-value",
        "APAY_MAX_PER_CALL": "your-value",
        "APAY_DAILY_BUDGET": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add --transport http apay https://apay-network.vercel.app/api/mcp

Or run it on your computer

claude mcp add apay --env APAY_PRIVATE_KEY=your-value --env APAY_NETWORK=your-value --env APAY_CURRENCY=your-value --env APAY_MAX_PER_CALL=your-value --env APAY_DAILY_BUDGET=your-value -- uvx apay 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": {
    "apay": {
      "url": "https://apay-network.vercel.app/api/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": {
    "apay": {
      "command": "uvx",
      "args": [
        "apay",
        "mcp"
      ],
      "env": {
        "APAY_PRIVATE_KEY": "your-value",
        "APAY_NETWORK": "your-value",
        "APAY_CURRENCY": "your-value",
        "APAY_MAX_PER_CALL": "your-value",
        "APAY_DAILY_BUDGET": "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": {
    "apay": {
      "type": "http",
      "url": "https://apay-network.vercel.app/api/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": {
    "apay": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "apay",
        "mcp"
      ],
      "env": {
        "APAY_PRIVATE_KEY": "your-value",
        "APAY_NETWORK": "your-value",
        "APAY_CURRENCY": "your-value",
        "APAY_MAX_PER_CALL": "your-value",
        "APAY_DAILY_BUDGET": "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://apay-network.vercel.app/api/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

APAY_PRIVATE_KEY secret env
Agent private key for signing EIP-712 payment authorizations (auto-generates non-custodial session wallet if omitted)
APAY_NETWORK env
Base network (base-mainnet or base-sepolia)
APAY_CURRENCY env
Preferred payment token (USDC, APAY, or DUAL)
APAY_MAX_PER_CALL env
Maximum allowed spend per single HTTP 402 request in USDC (default: 0.05)
APAY_DAILY_BUDGET env
Maximum 24-hour spending limit in USDC (default: 2.00)

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 8, 2026. The maker wrote them, not us; we show them as plain text.

apay_request
Probe and automatically pay HTTP 402 crypto micropayments on Base Layer 2 with USDC or $APAY within pre-configured budget limits.
apay_get_wallet_status
Inspect the agent's active non-custodial wallet address, network, current spending guardrails, and total spent in USDC and $APAY.
apay_set_budget
Configure agent safety invariants and spending guardrails. Prevents runaway loops or overcharging.
apay_inspect_endpoint
Inspect an endpoint to check if it requires an A-Pay micropayment, inspect the exact price quote, currency, and payout receiver without spending any funds.
apay_get_balance
Inspect the agent's live on-chain balances on Base Layer 2, including native ETH (for gas), USDC, and $APAY tokens.

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 neuralaisofficial-lang, 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
✓ Pass
Endpoint responds
Responded in 184 ms (HTTP 200)
– Not applicable
Sign-in with OAuth
No sign-in needed
✓ Pass
No hidden instructions in tool descriptions
Read 5 tool descriptions and found no hidden instructions to the AI

Compared with others in Otheri

More stars than 0% of the other 19060 servers in this category
Published to the registry more recently than 51% of the other 19060 servers in this category
Basic checks equal to or better than 100% of the other 19060 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 A-Pay Protocol 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: APAY_PRIVATE_KEY

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 (0.1.8) reached the registry 43 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, Lium GPU Cloud

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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.

⚡ A-Pay Protocol (AgentPay)

The Universal Micropayment & Economic Layer for Autonomous AI Agents

🌐 Live Production Network & On-Chain Addresses

Live Web App & Console: https://apay-network.vercel.app
Base Mainnet (Chain ID `8453`):
$APAY Token (ERC-20): 0x8dd4ff9035c7d4e0bef30aa64fc30d128a4066c3 (100M Cap, Base L2)
Aerodrome Live Pool: vAMM-WETH/APAY (0x6933...7777)
DexScreener Chart: Live APAY/WETH Chart
Base Sepolia L2 (Chain ID `84532`):
APayRouter (V1 Gateway): 0x71434344beEF9C44fF3BC95572bEB7bFB8847ec6 (1.0% Protocol Fee)
APayRouterV2 (Enterprise Router): 0xD08c8A337E5339d1c083E06d74A9265956ceEA16 (Cumulative Channels & Merkle Claims)
EscrowVault (Session Keys): 0x3E35a9E802627a3D9A86D6554e72b1C446E34aAF (Sub-Agent Delegated Spending)
StakingVault (Anti-Spam Collateral): 0xD2f3F4D97f4a3fdC9d4eEDfB9747BF9D80CF6225 (Anti-Spam Staking & Slashing Engine)

🎯 Vision & Identity

A-Pay is an ultra-lightweight, zero-latency, open economic rail designed for the machine-to-machine (M2M) economy. Just as UPI revolutionized human digital payments in India, A-Pay enables autonomous AI software agents to discover, consume, and pay for data, compute, APIs, and micro-services on the fly—without credit cards, human KYC, or seed phrase friction.

🚀 1-Command Experience

1. Website / API Owners (The Sellers)

Scaffold a fullstack monetized AI Agent app (Next.js, FastAPI, or Express) in 60 seconds:

npx create-apay-app my-paid-agent

Or protect ANY existing website or API with an instant HTTP 402 crypto paywall proxy—zero code modifications required:

apay protect --target http://localhost:8000 --price 0.001 --wallet 0xYourWalletAddress

Incoming requests from AI bots will automatically receive an HTTP 402 Payment Required challenge.
Once the AI agent's cryptographic micropayment is verified (<15ms), the request is forwarded to your server and data is unlocked!

2. AI Agent Developers (The Buyers)

Give your AI agent an in-memory wallet and strict spending guardrails with 2 lines of code:

from apay import APaySession, AgentWallet

Generate or load wallet with daily safety limit

wallet = AgentWallet(private_key="0x...", max_per_call_usdc=0.01, daily_budget_usdc=5.0) session = APaySession(wallet)

Automatically handles HTTP 402 challenges & settles on the fly

response = session.get("https://protected-api.com/market-data") print(response.json())

3. Claude Desktop & Cursor (Model Context Protocol / MCP)

Equip Claude Desktop, Cursor, Antigravity, or Cline with an autonomous A-Pay micro-wallet in 1 click via Smithery.ai:

npx -y @smithery/cli install apay --client claude

Or add directly to claude_desktop_config.json or .cursor/mcp.json (zero-setup via uvx):

"mcpServers": { "apay": { "command": "uvx", "args": ["apay", "mcp"], "env": { "APAY_NETWORK": "base-mainnet", "APAY_CURRENCY": "DUAL", "APAY_MAX_PER_CALL": "0.05", "APAY_DAILY_BUDGET": "2.0" } } } }

Now your assistant can autonomously inspect balances, probe paywalls, and settle HTTP 402 micropayments on Base L2!

📦 Directory Structure

apay/

├── src/ │ └── apay/ │ ├── init.py # Package exports │ ├── cli.py # ⚡ 1-Command CLI (apay protect, apay wallet new, apay pay) │ ├── client.py # 🤖 Auto-settling HTTP client (sync & async) │ ├── wallet.py # 🔐 In-memory wallet + local spending limits │ ├── proxy.py # 🛡️ Ultra-light reverse proxy paywall (Starlette + EIP-712) │ ├── relayer.py # 📊 Settlement journal & batch relayer │ └── integrations/ # 🔗 LangChain & CrewAI agent wrappers ├── contracts/ # Base Sepolia Smart Contracts (APAYToken & APayRouter) ├── tests/ # Automated integration & security test suite ├── spec/ # RFC wire format & security model specifications └── pyproject.toml # Hatchling packaging configuration

🛠️ Installation & Quickstart

# 1. Install A-Pay via pip

pip install apay

2. Generate a new Agent Wallet with spending limits

apay wallet new

3. Protect any website or API with an instant HTTP 402 Paywall

apay protect --target http://localhost:8000 --price 0.001 --wallet 0xYourPayoutWalletAddress

*A-Pay is an open-source decentralized economic protocol for autonomous machine agents. Built on Base L2.*

A-Pay Protocol

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

Lium GPU Cloud

README from the maker

⚡ A-Pay Protocol (AgentPay)

🌐 Live Production Network & On-Chain Addresses

🎯 Vision & Identity

🚀 1-Command Experience

1. Website / API Owners (The Sellers)

2. AI Agent Developers (The Buyers)

Generate or load wallet with daily safety limit

Automatically handles HTTP 402 challenges & settles on the fly

3. Claude Desktop & Cursor (Model Context Protocol / MCP)

📦 Directory Structure

🛠️ Installation & Quickstart

2. Generate a new Agent Wallet with spending limits

3. Protect any website or API with an instant HTTP 402 Paywall