Lotero

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

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Not yet automatically verified

We haven't yet run this listing's install command through our automated sandbox check. This isn't a red flag — we're steadily working through the catalog.

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "lotero": {
      "command": "npx",
      "args": [
        "-y",
        "lotero-mcp"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Documentation Overview

🎰 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.

bash

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:
Terminal
```
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

Code

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

bash

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

2. Run local chain

bash

yarn chain

3. Deploy contracts (new terminal)

bash

yarn deploy

4. Run tests

bash

yarn contracts:test

5. Start the frontend (optional, in development)

bash

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

Read the full README →View source on GitHub →

Related MCP Servers

View all in Finance & Fintech View all alternatives

Reviews

No reviews yet — be the first to share how this listing worked for you.

Frequently Asked Questions about Lotero

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "lotero": { "command": "npx", "args": ["-y", "lotero"] } }

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Technical Specs & Signals

CategoryFinance & Fintech

37Quality signal: Fair · 37/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20

Documentation & tools16/30

Adoption & activity2/15

Community engagement0/10

A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.

★ Featured

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The official MCP server for AllMCPs.com - submit and manage tools directly from your AI. The open directory for MCP servers. Connect Claude, Cursor, Windsurf, and AI agents to databases, tools, files, and APIs. Explore 10,000+ servers. AllMCPs is the premier, open directory for discovering, evaluating, and installing Model Context Protocol (MCP) servers to equip AI agents and LLMs with real-world superpowers.

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More in 💰 Finance & Fintech →Best MCP servers for Finance & Fintech →Alternatives to Lotero →Install in Claude Desktop Install in Cursor Install in VS Code

Lotero

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

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Not yet automatically verified

We haven't yet run this listing's install command through our automated sandbox check. This isn't a red flag — we're steadily working through the catalog.

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "lotero": {
      "command": "npx",
      "args": [
        "-y",
        "lotero-mcp"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Documentation Overview

🎰 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

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.

bash

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:
Terminal
```
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

Code

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

bash

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

2. Run local chain

bash

yarn chain

3. Deploy contracts (new terminal)

bash

yarn deploy

4. Run tests

bash

yarn contracts:test

5. Start the frontend (optional, in development)

bash

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

Read the full README →View source on GitHub →

Related MCP Servers

View all in Finance & Fintech View all alternatives

Reviews

No reviews yet — be the first to share how this listing worked for you.

Frequently Asked Questions about Lotero

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "lotero": { "command": "npx", "args": ["-y", "lotero"] } }

AllMCPs Directory Badge

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Badge Style:

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<a href="https://allmcps.com/mcp/lotero"><img src="https://allmcps.com/api/badge/lotero?style=directory" alt="Lotero on AllMCPs" /></a>

Technical Specs & Signals

CategoryFinance & Fintech

37Quality signal: Fair · 37/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20

Documentation & tools16/30

Adoption & activity2/15

Community engagement0/10

★ Featured

AllMCPs Server

Explore Server →

Own this project?

Free dofollow backlink: add your website and place the AllMCPs badge on it — no claim needed. We detect it automatically and keep it verified as long as the badge stays live.

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More in 💰 Finance & Fintech →Best MCP servers for Finance & Fintech →Alternatives to Lotero →Install in Claude Desktop Install in Cursor Install in VS Code