Solidus Auth
Solidus Auth vs Auth0
Auth0 rents you your own users, per month, forever, and the directory lives in their tenant. Solidus is DID-native — the credential belongs to the user. We are nowhere near Auth0 on breadth, and that is the trade.
Solidus is a public testnet: no mainnet, no token, no external audit, and no paying customer. Every claim below is checkable; none of them are a substitute for the certifications an incumbent already holds.
What Auth0 does better
- OAuth/OIDC/SAML breadth, Universal Login, and documentation that is genuinely the category benchmark. We do not come close.
- 7,000+ enterprise customers, Okta’s enterprise reach, SLAs, and a support organisation.
- Enterprise SSO, SCIM provisioning, and the compliance certifications procurement asks for. Solidus has none of these.
- It is a finished product. Solidus Auth runs on a testnet and is unaudited.
Where Solidus is different
- No per-MAU rent. Auth0 Professional at 1M MAU is roughly $23K/month (~$280K/year); the Solidus protocol cost is ~$0.001 per verification.
- No tenant lock-in: the user’s credential is a W3C VC they hold, not a row in our database.
- BBS+ selective disclosure — prove a claim without revealing the underlying data. Unaudited today.
Side by side
| Feature | Solidus | Auth0 |
|---|---|---|
| Pricing model | Per verification (~$0.001 protocol cost) | Per monthly active user, forever |
| At 1M MAU | No per-user fee | ~$23K/mo (~$280K/yr) on Professional |
| Free tier | Testnet | 7,000 MAUAuth0 wins |
| Where the user directory lives | With the user — a W3C VC they hold | In your Auth0 tenant |
| OAuth / OIDC / SAML breadth | OIDC subset | The category benchmarkAuth0 wins |
| Enterprise SSO + SCIM | Not offered | Full supportAuth0 wins |
| Selective disclosure | BBS+ (unaudited) | Not offered |
| Maturity | Public testnet, unaudited, no paying customer | 7,000+ enterprise customersAuth0 wins |
Check it yourself
npm i @solidus-network/auth — the BBS+ unlinkability demo ships in the tarball. UNAUDITED; audit targeted H2 2026 via NLnet NGI Zero.