# jasny/sso

Simple Single Sign-On for PHP

Repository: https://github.com/jasny/sso
Canonical: https://ross.abutalabs.com/products/jasny-sso
Language: PHP
License: MIT
License Family: permissive
Last push: 2024-02-13T12:22:22+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 6125, "days_push": 932, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1485, forks 382 (observed 2026-08-28T04:04:51.901628+00:00)

## What it is
A PHP library implementing simple Single Sign-On (SSO), allowing users to log in once at a central server and be automatically authenticated across multiple affiliate websites that need not share a top-level domain. It differs from OAuth by sharing a full session between brokers rather than just exchanging profile info.

## Use cases
- implement single sign-on across multiple php websites
- share login sessions between sites on different domains
- avoid requiring users to log in again on each affiliate site
- centralize user credentials on one authentication server
- log out users across all connected sites at once
- replace oauth-based login with true session sharing

## When to choose
- you control a central auth server and multiple php broker sites
- you want simple, lightweight SSO without OAuth complexity
- affiliate sites are on different top-level domains but should share sessions

## When to avoid
- you need a standards-based protocol like SAML, OIDC, or OAuth2
- your stack is not PHP
- you need federated identity with external identity providers

## Facets
- artifact type: library
- maturity: maintenance
- function: auth, http-server, middleware
- domain: security, web-development, backend
- platform: php, self-hosted
- tags: single-sign-on, sso, session-sharing, authentication-broker, web-server

## Member repositories
- jasny/sso (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:51.901628+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:33:56.279547+00:00, confidence not recorded.
  - readme: https://github.com/jasny/sso (fetched 2026-08-28T04:04:51.901628+00:00, sha dbd2acf20a58)
- Data as of 2026-08-30T08:39:29.467469+00:00.