Astracipher

Astracipher is a Model Context Protocol (MCP) server that provides cryptographic identity and trust solutions for AI agents across decentralized and interoperable AI ecosystems. It exposes tools for agent identity creation, authorization, permission checks, and credential inspection, built on W3C Decentralized Identifiers (DIDs) and Verifiable Credentials (VCs), with hybrid post-quantum cryptographic security. Astracipher integrates natively with MCP clients (such as Claude, GPT, Cursor, etc.), offers compliance modules for global regulatory frameworks, and supports agent-to-agent authentication, making it suitable for enterprises, developers, and organizations needing secure, standardized, and auditable agent authentication and permission control in multi-agent AI systems.