Lotero

Name: Lotero
Author: csacanam

by csacanamversion 0.1.0i★ –iRuns on your computer

Registry nameio.github.csacanam/lotero

Install

Overview

Description from the maker (original English)

Provably fair on-chain slot machine for AI agents: x402 spins on Base, Chainlink VRF results.

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
UsageiVery new↓ 53/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: Runs on your computer
Transport: stdio
Category: Crypto & blockchain
You need to fill in: LOTERO_WALLET_PRIVATE_KEY

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: LOTERO_WALLET_PRIVATE_KEY, LOTERO_PLAYER_ADDRESS, LOTERO_MAX_SPINS_PER_SESSION

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

You need

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 …”.

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

{
  "mcpServers": {
    "lotero": {
      "command": "npx",
      "args": [
        "-y",
        "lotero-mcp"
      ],
      "env": {
        "LOTERO_WALLET_PRIVATE_KEY": "your-value",
        "LOTERO_PLAYER_ADDRESS": "your-value",
        "LOTERO_MAX_SPINS_PER_SESSION": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add lotero --env LOTERO_WALLET_PRIVATE_KEY=your-value --env LOTERO_PLAYER_ADDRESS=your-value --env LOTERO_MAX_SPINS_PER_SESSION=your-value -- npx -y lotero-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": {
    "lotero": {
      "command": "npx",
      "args": [
        "-y",
        "lotero-mcp"
      ],
      "env": {
        "LOTERO_WALLET_PRIVATE_KEY": "your-value",
        "LOTERO_PLAYER_ADDRESS": "your-value",
        "LOTERO_MAX_SPINS_PER_SESSION": "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": {
    "lotero": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "lotero-mcp"
      ],
      "env": {
        "LOTERO_WALLET_PRIVATE_KEY": "your-value",
        "LOTERO_PLAYER_ADDRESS": "your-value",
        "LOTERO_MAX_SPINS_PER_SESSION": "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

LOTERO_WALLET_PRIVATE_KEY secret env
Dedicated wallet with USDC on Base — pays spins/claims via x402. Required only for spin/claim.
LOTERO_PLAYER_ADDRESS env
Default player — the human's wallet, where winnings accrue and get claimed.
LOTERO_MAX_SPINS_PER_SESSION env
Enforced responsible-gambling spin limit per session (default 10).

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 10, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account csacanam, 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 Crypto & blockchaini

More stars than 0% of the other 1634 servers in this category
Published to the registry more recently than 28% of the other 1634 servers in this category
Basic checks equal to or better than 100% of the other 1634 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 Lotero 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?

You need to fill in: LOTERO_WALLET_PRIVATE_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 –, and the latest version (0.1.0) reached the registry 4 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: FinzData, Souvenir, XRPLME Country Intelligence

Alternatives

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

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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.

🎰 Lotero

A Provably Fair Casino for AI Agents

A provably fair, on-chain slot machine with Chainlink VRF 2.5. Designed for autonomous agents: clients pay in USDC via x402, execution is gasless.

Overview

Lotero lets users (or AI agents) bet USDC and win prizes when three matching symbols appear on the reels. The game uses Chainlink VRF 2.5 for provably fair randomness.

RTP ~93% — DOCS/RTP_MODEL.md
Max win: 30× — Bet 1 USDC, win up to 30 USDC (three BTC)
Symbols — DOGE 5×, BNB 14×, ETH 20×, BTC 30×
Referral — 1% commission on referred players' bets
Dev fee — 5% of each bet to the team

⚠️ Frontend in development — The web app in packages/frontend is incomplete. The contracts and agent are production-ready.

Smart Contract

SlotMachineV2 (Base mainnet)

Item	Value
Address	`0xC4b88e90a73fA9ec588E504255A43d4Ccb82edE9`
Token	USDC. Bet 1 USDC, win up to 30 USDC.
VRF	Chainlink VRF 2.5
Events	`SpinRequested`, `SpinResolved`

Core functions

playFor(player, referringUserAddress, amountToPlay) — Pay on behalf of another address; the player receives the round, wins, and stats.
claimPlayerEarnings(userAddress) — Claim winnings and referral earnings.
isResolved(requestId) — Check if a round has been resolved.

Agents

Lotero Agent

Stateless HTTP API that sells spins and claims as a service. Clients pay via x402 (1.1 USDC spin, 0.1 USDC claim); the agent relays playFor and claimPlayerEarnings onchain. Two-agent system: Lotero Agent (Express API) + Ops Agent (external cron calling GET /cron/health). See packages/agent/README.md.

POST /spinWith1USDC — Paid (x402). Execute spin for player.
POST /claim — Paid (x402). Claim player earnings (gasless).
GET /round?requestId=..., GET /player/:address/balances, GET /contract/health — Read-only.
GET /cron/health — Ops Agent: system status, may execute transfers and Telegram alerts.

yarn agent        # Start agent

yarn agent:dev # Dev with watch

Documentation: DOCS/AGENT_FLOWS.md | DOCS/AGENT_API.md

For AI agents:

MCP server (lotero-mcp on npm, listed on the official Model Context Protocol registry as io.github.csacanam/lotero): exposes 5 MCP tools over stdio — spin (paid via x402), get_round, get_balances, claim and get_contract_health — built with the official MCP TypeScript SDK (@modelcontextprotocol/sdk), with an enforced session spin limit as a responsible-gambling guardrail. Install:

  claude mcp add lotero -- npx -y lotero-mcp

See mcp/README.md for configuration and tool reference.

Agent skill: npx skills add csacanam/lotero-core (or read it at lotero.xyz/skill.md) — wallet setup, x402 spin/poll/claim flow, payouts, budget guardrails.
LLM index: lotero.xyz/llms.txt.

Project Structure

packages/

├── agent/ # Lotero Agent — x402 + onchain relay ├── contracts/ # Smart contracts, tests, deploy scripts │ ├── contracts/ SlotMachine.sol, SlotMachineV2.sol │ ├── deploy/ │ └── test/ └── frontend/ # Web app (in development)

Documentation

Doc	Description
DOCS/AGENT_FLOWS.md	Flow diagrams (cron health, spin, claim)
DOCS/AGENT_API.md	API reference, endpoints, env, constants
DOCS/DEPLOY_BASE.md	Deploy contracts to Base
DOCS/RTP_MODEL.md	RTP math and reel layout

Requirements

Quick Start

1. Install dependencies

git clone https://github.com/csacanam/lotero-core.git

cd lotero-core yarn install

2. Run local chain

yarn chain

3. Deploy contracts (new terminal)

yarn deploy

4. Run tests

yarn contracts:test

5. Start the frontend (optional, in development)

yarn start

App runs at http://localhost:3000.

Production

For Base mainnet: see DOCS/DEPLOY_BASE.md. Contract address above. Fund the VRF subscription with LINK.

License

MIT

Lotero

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

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 Crypto & blockchaini

Common questions

Alternatives

FinzData

Souvenir

XRPLME Country Intelligence

README from the maker

🎰 Lotero

Overview

Smart Contract

SlotMachineV2 (Base mainnet)

Agents

Lotero Agent

Project Structure

Documentation

Requirements

Quick Start

Production

License