CaudexCatena MCP connects supported AI assistants to structured blockchain intelligence through a remote, OAuth-protected MCP endpoint. Instead of switching between raw explorers and disconnected dashboards, a user can ask about an address, transaction, entity, exposure, or cross-chain path from the AI client they already use. The service returns contextual data for wallet triage, counterparty review, fund-flow analysis, risk interpretation, and evidence-aware summaries. Available context can include balances, activity, labels, counterparties, exposures, and cross-chain movements, with confidence and review boundaries kept visible. It is intended for investigators, compliance and risk teams, researchers, journalists, and technical users building repeatable on-chain investigation workflows. Human review remains essential; responses support analysis and case preparation rather than replacing investigative judgment.