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MCP MCP server · io.github.putervision

io.github.putervision/webcrypt

Zero-dependency Web Crypto & AI Agent MCP Server (AES-256-GCM, RSA-4096, PQC, Signatures).

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npmlocalstdio

WebCrypt is an MCP server exposing Web Crypto operations—AES-256-GCM, RSA-4096, post-quantum cryptography, and signatures—as tools for AI agents, with zero dependencies. It runs over stdio and advertises six core tools plus auto-setup for common AI coding environments.

Use it when you want an agent or JavaScript application to perform authenticated encryption and signing without pulling in third-party crypto libraries.

Use it to

  • Encrypt and decrypt data with AES-256-GCM from an agent
  • Generate and use RSA-4096 key pairs
  • Sign and verify payloads
  • Explore post-quantum cryptography operations
  • Set up crypto tooling in supported IDEs and agent clients

For Developers building AI agents or JavaScript apps needing crypto

Runs
installed — on your machine
Transport
stdio
Packaged as
npm:webcrypt
Install
npx -y webcrypt
Version
1.0.1
Last release
2026-08-21
topicsmcpcryptographyweb-cryptoencryptionsignaturesai-agents