Mest

Mest is built on the idea that a blockchain transaction is only half a story until someone explains what it means. The platform lets anyone take raw Ethereum transaction data and attach labels that describe the agent behind a transfer and the real-world event it represents, mapping technical fields like the recipient address and input data onto a standardized financial language.

The name comes from "Metadata" plus "Story," and the design reflects that blend: transaction records become shareable narratives enriched with context. Labelling data is published to Nostr relays using public/private key pairs that follow the NIP-1011 specification, so contributions live on a decentralized social protocol rather than inside a closed database. The project positions the resulting metadata as a public good, comparable to a freely available photo library, while the platform itself operates commercially.

There are two main pieces. The Mest app is the visual client where users share and label transactions through a normal interface, and the Mest protocol defines the semantic layer, including standards for transaction metadata, voting, and reputation. Access has historically been invitation-only while the team refined features with an early group of users.