One sign-on. Verified identity. Payments built in.
A KYC vendor, a separate contract, weeks of integration — just to know who your users really are.
A gateway, card storage, PCI scope, payout rails — a second vendor, a second bill, a second breach surface.
Bots, spam sign-ups, CAPTCHA that blocks real users more than fake ones. CAPTCHAs don't verify anyone.
Every app asks for the same name, address, date of birth again. Users churn at the form.
Password resets, session hijacks, "log out all devices" — support tickets your team pays for.
PII scattered across vendors and regions. Every addition multiplies your audit surface.
Fake accounts and stolen identities become chargebacks — and you eat the loss.
Lost phone, locked-out user: support tickets and churn, every time.
User data scattered across vendors — no single view of your customer.
Stitching this together = 3–4 contracts before your product is even trustworthy.
Standard OpenID Connect. Your existing auth library already knows how to talk to us — discovery document, JWTs, the works.
Their phone opens their 0account app. They see exactly what's being requested and approve with one tap. No passwords, no typing.
You get a signed identity: profile data they consented to share, KYC verification status, and a saved payment method if they allow it.
Their identity. Your app. Zero passwords.
Five minutes, live product, real flows.
The phone in their pocket is the second factor — by design, not as an add-on.
Enforceable per app, invisible when not needed.
Government-ID-grade verification as a built-in flag on the identity — "this human is verified."
Users' data is end-to-end encrypted — our servers hold ciphertext only.
Users kill sessions remotely; your servers get back-channel logout.
Sign-ups are real people on real devices — spam stops at the door.
Users see exactly what each app receives, listed in their own app.
Stored once in 0account, shared only with the apps the user approves.
Profile, consents, cards and sessions — managed from phone, desktop or web.
Everything is a documented REST API with a full OpenAPI spec — inspectable and CI-friendly.
Device-based account recovery — no password-reset tickets.
OIDC + OAuth2 — integrate with the library you already use. No lock-in, leave anytime.
| 0account | Sign-in w/ Google | Auth0 | Clerk | Cognito | |
|---|---|---|---|---|---|
| Standard OIDC / OAuth2 | ✓ | ✓ | ✓ | ✓ | ✓ |
| Passwordless by default | ✓ | ~ | ~ | ~ | ~ |
| KYC identity verification | ✓ built in | – | – | – | – |
| Shared payment cards | ✓ | – | – | – | – |
| User-owned encrypted data | ✓ | – | – | – | – |
| Remote session kill | ✓ | – | ~ | ~ | ~ |
| Bot-proof sign-ups | ✓ | – | ~ | – | – |
| Self-service recovery | ✓ | ~ | ~ | ~ | ~ |
| EU-hosted infrastructure | ✓ | – | ~ paid tier | – | ~ region |
| Founding flat license | ✓ | – | usage | usage | usage |
✓ included · ~ partial, configurable, or higher tier · – not offered (Sep 2026).
With social login, one ban on the network locks your users out of every app at once.
Modern elliptic-curve JWTs. Short-lived sessions, revocable server-side.
TOTP two-factor, Argon2id hashing, encrypted cookies, rate limiting on every edge.
Profile data is end-to-end encrypted. A breach of our DB yields ciphertext, not your users' PII.
Hetzner eu-central, Cloudflare edge with strict TLS. Your users' data stays in EU jurisdiction.
OpenTelemetry traces, Grafana metrics, Sentry errors — incidents surface in minutes.
Encrypted secret management and encrypted etcd — no plaintext credentials anywhere in the stack.
Full details and architecture walkthrough available on the integration call.
Adoption isn't a checkbox your users tolerate — it's an upgrade they feel.
"I needed a way to stop spam sign-ups for the trial. Using 'Google Sign-In' didn't help, so we had to add CAPTCHA — which helped, but the sign-up was no longer simple. So we decided to give 0account a try, and wow! Simple sign-ups, no spam, verified accounts, and our users love it!"— ProxyGrid · proxygrid.io
"Signup forms are boring to both developers and users. 0account comes to the rescue with an easy-to-integrate solution that makes signing in a breeze for our users."— Chartbrew · chartbrew.com
"It feels so nice to provide a truly secure and privacy-first authentication for my users. I actually use 0account myself for its simplicity and peace of mind."— Use of English PRO · useofenglishpro.com
Full Basic-tier platform, white-glove onboarding, direct line to the founding team. In return: a published case study. Integration starts within 30 days — or the slot passes on.
Permanent Basic-tier license. Pay once, own it — no monthly identity bill, ever. Not live in 30 days? Full refund.
Same permanent license, same terms. The price simply steps up as the slots fill.
The integration itself? 10–20 minutes of code. The 30-day refund is just peace of mind.
13 founding slots. When they're gone, the deal is gone.
Thirty minutes with our CTO. Bring your auth backlog —
leave with an integration plan and a slot.
We're a standard OIDC provider. Your code talks to a discovery document. Leave anytime — swap the issuer URL.
EU infrastructure, EU jurisdiction, and PII that exists on our servers only as ciphertext.
Flattering that you'd worry — we're just getting started. And even in the worst case: open standards + full data export make it a library swap, not a rewrite.
First-time users install once at sign-up — one tap, no account creation form. Every later app is zero friction.
Founding cohort — we're buying reference customers and feedback, not maximizing revenue yet.
docs.0account.com — quick-start plus integration guides for Go, Node.js and Next.js. Your team reads code, not promises.