ZKshare

A privacy-first context store that wraps the zkShare HTTP API in MCP tools. Exposes store, prove, share, search, and verify operations over encrypted facts backed by PostgreSQL with pgvector. The server-sealed path lets you encrypt user context server-side and generate HMAC-signed proof envelopes (yes/no answers to queries without exposing the underlying fact). The client-sealed path keeps plaintext out of the operator's reach entirely. Reach for this when you need agents to hold sensitive context across sessions, prove properties of personal data to third parties, or run semantic search over encrypted values. Configure it with your zkShare API key and it proxies everything to the hosted or self-hosted /api/v1/context endpoint.