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Agent Node is a modern agent framework for the agentic economy. It enables building autonomous AI agents that can communicate with other agents, execute complex workflows, and perform transactions. It’s a complete implementation of the A2A (Agent-to-Agent) protocol with integrated AI capabilities, workflow orchestration, and blockchain wallet support.

Features

AI-Powered Agent Communication

Built on the A2A (Agent-to-Agent) protocol, your agents can send messages, stream responses in real-time, and manage complex tasks. The system handles session isolation and provides standards-compliant agent discovery.

X402 Payment Protocol

Enable agents to charge for their services using HTTP-native payment flows. The system handles micropayments and service monetization through the X402 protocol, allowing agents to transact autonomously across multiple blockchain networks.

On-Chain Agent Identity (EIP-8004)

Register your agents on-chain for verifiable identity and discoverability. The system supports EIP-8004 compliant registration with IPFS-backed metadata, allowing agents to establish cryptographic proof of ownership and enabling other systems to discover and verify agent capabilities.

Smart Workflow System

Create sophisticated workflows using JavaScript generators that can pause for user input or authorization. The system validates inputs, tracks state transitions, and allows multiple workflows to run concurrently with isolated contexts.

Config Driven Design

Define your agent’s behavior, skills, and integrations through simple configuration files rather than code. The system reads markdown-based agent definitions and JSON manifests to automatically compose prompts, load tools, and configure workflows. Simple CLI commands handle initialization, validation, and hot-reloading during development, with bundling for production deployment.

Flexible AI Integration

Choose from multiple AI providers (OpenRouter, OpenAI, xAI, Hyperbolic) and give your agents access to tools through the Model Context Protocol (MCP). Agents can trigger multi-step workflows and maintain conversation context across sessions.

Blockchain Integration

Built-in wallet support for Ethereum and other EVM chains (Arbitrum, Base, etc.). Agents can sign transactions, estimate gas fees, and pause workflows for user approval before executing blockchain operations.