Generate or verify a Proof Key for Code Exchange (PKCE) challenge pair

A Node.js module for verifying email addresses

A lightweight library to decode and verify RS JWT meant for the browser.

Easily validate Okta access tokens

CopilotKit license verification

Measure the difference between two strings using the Levenshtein distance algorithm

Verify JSON Web Tokens (JWT) from Amazon Cognito and other IDPs

Canonical ReDevPlugin release-signing and presentation-evidence APIs

TypeScript definitions for jest-axe

Secure Remote Password (SRP)

TON verifier SDK - sources fetcher + code viewer for FunC with code highlighting

Verifies that typescript examples in markdown files actually compile.

AMD SEV-SNP attestation verifier for Node.js and browsers

Captcha verifier for NodeJS

The reference `ust` CLI for UST (Universal State Transcript) 1.0 — verify a transcript, print canonical bytes for cross-language diffing, and run the HIGH genesis ceremony. One entrypoint; the Go binary reproduces this surface.

Super-fast alternative to Babel for when you can target modern JS runtimes

OAUTH PKCE code_verifier and code_challenge generator

Easily add OAuth 1.0a signing to your axios client

Verifies Solid OIDC access tokens via their webid claim, and thus asserts ownership of a WebID.

Opt-in Sigstore Rekor (transparency-log) substrateVerify for UST anchors — a fast, independent witness substrate next to Bitcoin. Zero-dep (REST + RFC6962 inclusion + pinned-key checkpoint signature). #68 witness / #69 A1 / #71 schema-exact hashedrekord.