Top 5 C Totp Projects

flipper-zero_authenticator

4 487 8.8 C

Software-based TOTP/HOTP authenticator for Flipper Zero device.

Project mention: Hardware TOTP generator for offline useage | /r/yubikey | 2023-05-26

Not that cheap but you may try Flipper Zero + Flipper Authenticator and as a bonus you will get U2F and few other perks

OTPClient

10 441 8.3 C

Highly secure and easy to use OTP client written in C/GTK3 that supports both TOTP and HOTP

Project mention: Ask HN: How do you deal with TOTP 2-factor auth? | news.ycombinator.com | 2023-09-11

InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
glewlwyd

2 425 8.9 C

Experimental Single Sign On server, OAuth2, Openid Connect, multiple factor authentication with, HOTP/TOTP, FIDO2, TLS Certificates, etc. extensible via plugins
esp32-mfa-totp-generator

2 39 8.8 C

ESP32 MFA TOTP Generator

Project mention: ESP32 MFA TOTP Generator | news.ycombinator.com | 2024-03-06

rvault

2 33 0.0 C

rvault: secure and authenticated store for secrets and small documents
WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).