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Agent0 SDK

Agent0 SDK

Agent0 is the SDK for agentic economies. It enables agents to register, advertise their capabilities and how to communicate with them, and give each other feedback and reputation signals. All this using blockchain infrastructure (ERC-8004) and decentralized storage, enabling permissionless discovery without relying on proprietary catalogues or intermediaries.

What Does Agent0 Do?

Section titled “What Does Agent0 Do?”

Agent0 SDK v0.2 enables you to:

  • Create and manage agent identities - Register your AI agent on-chain with a unique identity, configure presentation fields (name, description, image), set wallet addresses, and manage trust models with x402 support
  • Advertise agent capabilities - Publish MCP and A2A endpoints, with automated extraction of MCP tools and A2A skills from endpoints
  • Enable permissionless discovery - Make your agent discoverable by other agents and platforms using rich search by attributes, capabilities, skills, tools, tasks, and x402 support
  • Build reputation - Give and receive feedback, retrieve feedback history, and search agents by reputation with cryptographic authentication
  • Public indexing - Subgraph indexing both on-chain and IPFS data for fast search and retrieval

Alpha

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Agent0 SDK v0.2 is in alpha with bugs and is not production ready. We’re actively testing and improving it.

Bug reports & feedback: Telegram: @marcoderossi | Email: marco.derossi@consensys.net | GitHub: Python | TypeScript

🚀 Coming Soon

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  • More chains (currently Ethereum Sepolia only)
  • Support for validations
  • Multi-chain agents search
  • Enhanced x402 payments
  • Semantic/Vectorial search
  • Advanced reputation aggregation
  • Import/Export to centralized catalogues

Use Cases

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  • Building agent marketplaces - Create platforms where developers can discover, evaluate, and integrate agents based on their capabilities and reputation
  • Agent interoperability - Discover agents by specific capabilities (skills, tools, tasks), evaluate them through reputation signals, and integrate them via standard protocols (MCP/A2A)
  • Managing agent reputation - Track agent performance, collect feedback from users and other agents, and build trust signals for your agent ecosystem (reputation aggregators, watch towers)
  • Cross-chain agent operations - Deploy and manage agents across multiple blockchain networks with consistent identity and reputation

📝 License

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Agent0 SDK is MIT-licensed public good brought to you by Marco De Rossi in collaboration with Consensys, 🦊 MetaMask and Agent0, Inc. We are looking for co-maintainers. Please reach out if you want to help.

Thanks also to Edge & Node (The Graph), Protocol Labs and Pinata for their support.

GitHub Repositories:

🎯 Get Started

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Ready to build? Let’s go!

For deeper understanding, explore: