Plastron

Plastron is a free, privacy-first wallet screening tool built for individual crypto holders rather than compliance departments. Exchanges screen every deposit. When an address carries sanctions exposure, mixer contact or proximity to stolen funds, the deposit is held and the owner finds out after their money is already on the exchange's side of the wall. Plastron runs the same class of check beforehand, explains which category triggered the result and how direct the exposure is, and does it without an account. Full screening runs on seven EVM chains today — Ethereum, Arbitrum, Base, Optimism, Polygon, BNB Chain and Avalanche. Solana addresses are screened directly against the OFAC SDN list and a labelled threat corpus, without counterparty analysis. More networks are on the roadmap. A developer API and an MCP server for AI agents are planned and not yet built. Plastron is read-only and non-custodial: it never requests a transaction signature and never touches keys or funds. It is an informational risk signal, not licensed compliance advice.