Zero-Knowledge Proofs for Privacy-Preserving Context Validation

**Executive summary:** This article argues that integrating zero-knowledge proofs into Model Context Protocol (MCP) architectures can prevent over‑sharing of sensitive data by proving statements (e.g., eligibility, spending thresholds, system posture) without exposing raw records, and discusses practical implementation details (middleware, non‑interactive proofs like zk‑SNARKs, performance and scaling costs), compliance benefits (GDPR, SOC2, HIPAA), and the need for quantum‑resistant approaches (zk‑STARKs, lattice cryptography) to future‑proof systems.