JSPM

Run the supplied function exactly one time (once)

Two- / Multi- Factor Authenication (2FA / MFA) for node.js

A commandline Authenticator App (for Authy, Google Authenticator, Microsoft Authenticator, TOTP / 2FA / MFA / OTP, etc)

define a method that will be executed only once

Helpers for single-use (temporary) EVM flows: ephemeral EOAs, Safe builders, Permit2 signature skeleton, sweep & gas estimates. No infra included.

A Basic TOTP (Time-based One-time Password Algorithm) implementation in TypeScript for use with cloudflare-workers

Disallows one-time variables

A more complete One-time pad implementation supporting Strings, Buffers and Files

Very simple wrapper to run a function only once

OTP (One Time Password) facilities for node.

A modern `setTimeout` substitute tailored for asynchronous tasks, designed to schedule a single delayed execution. Features status getters to communicate the execution status, the ability to abort a pending execution, and the option to gracefully await th

Disposable HTTP server.

A scheduler for one-time (non-periodic) asynchronous tasks, designed to manage delayed executions. It features status getters to communicate the execution state, a robust error handling mechanism for capturing uncaught errors, and the ability to abort pen

Ultralight, non-dependent and minimalist open-source package for generating Time-based One-Time Passwords (TOTPs), creating OTP URLs, and generating secure backup codes for account recovery.

Email verification, One-time/Disposable/Temporary address detection

Lamport one-time signatures

Generates a time-based one time password based on customized data, such as the type of hashing algorithm and the number of digits to have in the OTP

Time Services based simple one-time token/password genaretor.

zero dependency time-based one-time password provider based on rfc6238