Welcome to Jarvis402

AI Powered
Next.js 16
x402 Protocol
Blockchain Agnostic

Overview

Jarvis402 is an autonomous AI agent that handles payments on your behalf using the x402 protocol. It enables you to access paid APIs, services, and digital resources without manual intervention—just tell Jarvis what you need, and it handles the payment automatically.

Key Features

  • 🤖 Autonomous Payments - AI agent automatically processes HTTP 402 payment flows

  • ⚡ Instant Settlement - Payments settle in ~2 seconds at blockchain speed

  • 💰 Zero Platform Fees - No middlemen, only blockchain gas and service costs

  • 🌐 Blockchain Agnostic - Works with Ethereum, Solana, and any x402-compatible chain

  • 🔒 No Registration - Access services without accounts, emails, or OAuth

  • 🛡️ Spending Limits - Set daily, weekly, and monthly spending caps for safety

  • 📊 Open Protocol - Built on the open x402 standard for internet-native payments

  • 🧠 AI-Powered - Natural language interface powered by Google Gemini

What is x402?

x402 is an open protocol for internet-native payments built around the HTTP 402 Payment Required status code. It enables:

  • Programmatic payments without accounts or sessions

  • Direct blockchain transactions for instant service access

  • Zero-fee transactions with no intermediaries

  • Machine-to-machine commerce at internet scale

Learn more at x402.org and x402.gitbook.io

Getting Started

Ready to use autonomous AI payments? Choose your path:

  1. Quick Start - Get up and running in 5 minutes

  2. Installation Guide - Detailed setup instructions

  3. Configuration - Configure spending limits and wallets

Documentation Structure

This documentation is organized into the following sections:

Getting Started

Appendix

How Jarvis402 Works

The Payment Flow

  1. You Make a Request

    • Tell Jarvis402 in natural language what service you need

    • Example: "Get me the latest weather data from WeatherAPI"

  2. Jarvis Detects Payment Required

    • Service returns HTTP 402 (Payment Required)

    • Jarvis reads the x402 payment details from the response

  3. Autonomous Payment Processing

    • Jarvis checks your spending limits

    • Submits blockchain transaction automatically

    • Waits for payment confirmation (~2 seconds)

  4. Instant Access

    • Retries the original request with payment proof

    • Receives and presents the data to you

    • All within seconds, zero manual intervention

Technology Stack

Jarvis402 is built with modern web technologies and blockchain infrastructure:

  • Frontend: Next.js 16 (App Router), Tailwind CSS 4, Framer Motion

  • AI: Vercel AI SDK with Google Gemini

  • Blockchain: Ethereum, Solana, and multi-chain support

  • Smart Contracts: Solidity with OpenZeppelin libraries

  • Protocol: x402 for autonomous payments

  • Testing: Hardhat, Chai, Ethers.js

Use Cases

For Users

  • AI Developers: Build agents that can pay for API access autonomously

  • Researchers: Access premium datasets and academic APIs on-demand

  • Creators: Use paid APIs without managing subscriptions

  • Web3 Enthusiasts: Experience the future of internet-native payments

For Service Providers

  • API Monetization: Instantly monetize your API without auth infrastructure

  • Micropayments: Enable pay-per-use pricing models

  • Reduced Friction: Remove account creation and subscription barriers

  • Global Access: Accept payments from anyone, anywhere

Smart Contracts

Jarvis402 includes a complete suite of Solidity smart contracts:

  • PaymentGateway.sol - Core payment processing

  • SpendingLimits.sol - User-defined spending controls

  • X402Registry.sol - Service discovery and registration

  • Jarvis402Token.sol - Native ecosystem token (J402)

See the contracts folder for full source code and tests.

Community & Support

Join our growing community:

Security & Safety

Jarvis402 takes your security seriously:

  • ✅ Set spending limits to prevent overspending

  • ✅ All transactions are transparent and on-chain

  • ✅ No custody - you control your wallet

  • ✅ Open-source smart contracts auditable by anyone

  • ✅ Non-custodial architecture

Important Disclaimers

⚠️ Please Read:

  • User Responsibility: You are responsible for setting appropriate spending limits

  • Irreversible Transactions: All blockchain transactions are permanent

  • Service Trust: Always verify the services you're accessing

  • Beta Software: This is experimental software; use at your own risk

  • Not Financial Advice: This is a payment tool, not investment advice

Contributing

We welcome contributions! Whether it's:

  • 🐛 Bug reports and fixes

  • ✨ Feature requests and implementations

  • 📚 Documentation improvements

  • 🧪 Adding test coverage

See our Contributing Guide for details.

License

Jarvis402 is open source and available under the MIT License.

External Resources

Ready to dive in? Start with the Quick Start Guide →

NextQuick Start

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