Sign and Encrypt Data
JSON parse with prototype poisoning protection
A tiny (130B to 205B) and fast utility to randomize unique IDs of fixed length
Chest Gate CLI. One command to monetise any API with x402 on Solana.
A tiny (230B) and fast UUID (v4) generator for Node and the browser
simple persistent cookiejar system
Provides functions for detecting if the host environment supports the WebCrypto API
Secure, zero-dependency utilities for generating passwords, passphrases, pins, and more
One-command installer for Chest Gate apps. Resolves a slug against the chest.sh registry, fetches its source from GitHub, and drops it in the right runtime folder. Falls back to printing manifest info for non-skill kinds.
Securely compare two strings, copied from cryptiles
A security-focused rehype plugin that filters URLs based on allowed prefixes
HTTP Server framework
Sets secure response headers for Next.js.
CHEST of me best tools, matey!
SHA1 wrapper for browsers that prefers `window.crypto.subtle`.
[](https://github.com/paralleldrive/aidd)[](https://paralleldrive.com)
Drop-in fetch() that pays x402 gates from any agent. Use a managed wallet (agent token) or a local keypair; credit a referrer with a publishable referrer key.
JWT Library for Node.js
Encrypt/Decrypt the values of a given object
OAuth 2.0 Device Authorization Grant (RFC 8628) login flow for Chest Gate clients (CLI, install, SDK). Mints a per-device agent token via chest.sh.
A security-focused wrapper for react-markdown that filters URLs based on allowed prefixes
Cookies, optionally signed using Keygrip.
Create a secure stateless cookie session for Fastify
Securely store secrets such as usernames, passwords, tokens, certificates or other sensitive information (strings) on iOS & Android