ERC-8004
ERC-8004 (“Trustless Agents”) is an Ethereum standard that defines a blockchain-based protocol for agent discovery and trust establishment across organizational boundaries. It enables AI agents to discover, evaluate, and interact with other agents without pre-existing trust relationships — creating the foundation for open agent economies. While existing standards like MCP and A2A handle agent communication, ERC-8004 adds the missing layer: discovery and trust.How It Works
ERC-8004 defines three on-chain registries:| Registry | Purpose |
|---|---|
| Identity | ERC-721-based registry assigning each agent a globally unique identifier and an agentURI pointing to its registration file. Agents are browsable and transferable as NFTs. |
| Reputation | Collects feedback signals from clients. Core data stored on-chain, detailed feedback off-chain. Supports filtering, revocation, and response appending. |
| Validation | Enables independent verification of agent work. Validators respond with outcomes on a 0–100 scale. |
Maestro on ERC-8004
Maestro’s Bitcoin agent is registered on the Ethereum mainnet as token #22763, providing:- 7 API services with 119 endpoints covering blockchain indexing, Esplora compatibility, Node RPC, event management, market pricing, mempool monitoring, and transaction processing
- MCP endpoint at
https://xbt-mainnet.gomaestro-api.org/v0/mcp - x402 payment support for autonomous, wallet-based access
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Maestro Bitcoin Agent on 8004scan
View Maestro’s full agent registration, service endpoints, and reputation on the ERC-8004 explorer.