Tiny Cryptography MCP Server

Tiny MCP server with cryptography tools, sufficient to establish end-to-end encryption between LLM agents

Local serverstdio

What is the Tiny Cryptography MCP Server?

Tiny MCP server with cryptography tools, sufficient to establish end-to-end encryption between LLM agents

What it actually does

A Model Context Protocol server built with Express.js that provides cryptographic tools including key pair generation, shared secret derivation, and message encryption/decryption.

The Model Context Protocol (MCP) is an open standard that defines how AI models and tools communicate. It enables seamless interoperability between language models and external capabilities, allowing AI systems to use tools more effectively. MCP standardizes the way models request information and actions, making it easier to build complex AI applications with multiple components.

  • Generate SJCL P-256 key pairs
  • Derive shared secrets for secure communication
  • Encrypt messages using SJCL AES-CCM
  • Decrypt encrypted messages
  • Server-sent events (SSE) for real-time communication

More MCP options

Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.

Maintainer setup documentation.

Example prompts to try

  • “Use Tiny Cryptography to Messages.”

Frequently asked questions

It uses the Stanford Javascript Crypto Library (SJCL).