Best embedded SSO and directory sync APIs for B2B SaaS
4 models · updated 2026-09-04
The verdict
WorkOS leads — All 4 models rank WorkOS the top pick.
As of 2026-09-04, ChatGPT, Claude, Gemini and Grok collectively rank WorkOS #1 for embedded sso and directory sync apis for b2b saas on ModelsAgree — a unanimous pick. The models' case: Best overall for the typical B2B SaaS team that already has authentication and wants to bolt on enterprise readiness without replacing it: exceptionally clean SAML/OIDC. The models' main caveat: Connection-based pricing gets expensive as the number of enterprise customers grows, especially when the same customer needs both SSO and Directory. The strongest alternative is Stytch — Best value if you want B2B authentication plus SSO and SCIM from one API-first platform: native organizations/multi-tenancy, SAML/OIDC, SCIM. Source: https://modelsagree.com/best/best-embedded-sso-and-directory-sync-apis-for-b2b-saas (modelsagree.com, CC BY 4.0).
Combined ranking
- 1GPT #1Claude #1Gemini #1Grok #1
Best overall for the typical B2B SaaS team that already has authentication and wants to bolt on enterprise readiness without replacing it: exceptionally clean SAML/OIDC SSO APIs, mature Directory Sync across many providers, normalized users/groups, webhooks/Events API, self-service Admin Portal, strong SDKs, and unusually good handling of the ugly provider-specific edge cases. Near-tie with Stytch if you also need a complete auth stack.
+ model takes & fixes− hide details
GPT Best overall for the typical B2B SaaS team that already has authentication and wants to bolt on enterprise readiness without replacing it: exceptionally clean SAML/OIDC SSO APIs, mature Directory Sync across many providers, normalized users/groups, webhooks/Events API, self-service Admin Portal, strong SDKs, and unusually good handling of the ugly provider-specific edge cases. Near-tie with Stytch if you also need a complete auth stack.
Claude The category-defining choice for embedded enterprise readiness — first-class SAML/OIDC SSO plus SCIM Directory Sync unified under one normalized API and a white-label Admin Portal that offloads the IdP-config back-and-forth to the customer's own admin. Broadest directory connector coverage (Okta, Entra ID, Google, Rippling, etc.), generous "free up to 1M MAU for AuthKit" and usage-based SSO/Directory pricing that fits both seed-stage and scale-up B2B; excellent docs and event/webhook model for real-time provisioning. Assumes your need is genuinely enterprise deal-unblocking (SSO/SCIM/audit) rather than a full consumer auth stack.
Gemini The gold standard for modular enterprise federation; offers best-in-class SDKs, extensive IdP and HRIS directory connectors (SCIM, Okta, Entra ID, Google Workspace, Workday), and a turnkey Admin Portal that drops into existing auth architectures without forcing a replatform. Assumes the application already has established core user authentication and only needs enterprise readiness features.
Grok Purpose-built SSO + Directory Sync APIs that sit on existing auth; widest real directory surface (SCIM plus Google Workspace pull, Workday/BambooHR/Rippling-class HRIS, SFTP, custom SCIM); ordered Events API plus webhooks; white-label Admin Portal lets customer IT self-serve both SSO and directory setup. Rank assumes the buyer is closing enterprise deals where IdP long-tail and deprovision reliability matter more than owning login UI.
Where it falls shortper GPT Connection-based pricing gets expensive as the number of enterprise customers grows, especially when the same customer needs both SSO and Directory Sync.
per Claude Not a complete identity platform — it's an enterprise-features layer, so if you want it to own your entire login/session/user store you'll lean on AuthKit, which is less mature than dedicated CIAM; per-connection SSO pricing can get expensive at high enterprise-customer counts.
per Gemini Aggressive per-connection pricing models that scale steeply, making it cost-prohibitive for startups offering enterprise SSO on mid-tier or lower-ACV plans.
per Grok Per-connection list price (~$125 SSO + ~$125 directory, volume down to ~$50) becomes the tax once you have dozens of enterprise tenants; not a full CIAM if you still need consumer login, orgs UI, and session UX from one vendor.
- 2GPT #2Claude #2Gemini #3Grok #3
Best value if you want B2B authentication plus SSO and SCIM from one API-first platform: native organizations/multi-tenancy, SAML/OIDC, SCIM provisioning, JIT provisioning, RBAC, group-to-role handling, embeddable admin tooling, excellent APIs, and a generous 5 SSO/SCIM connections free before predictable usage pricing. Very close to WorkOS; ranks second mainly because WorkOS is the cleaner drop-in choice when auth already exists.
+ model takes & fixes− hide details
GPT Best value if you want B2B authentication plus SSO and SCIM from one API-first platform: native organizations/multi-tenancy, SAML/OIDC, SCIM provisioning, JIT provisioning, RBAC, group-to-role handling, embeddable admin tooling, excellent APIs, and a generous 5 SSO/SCIM connections free before predictable usage pricing. Very close to WorkOS; ranks second mainly because WorkOS is the cleaner drop-in choice when auth already exists.
Claude Strongest all-in-one B2B alternative — native Connected Apps, organization/RBAC model, SSO (SAML+OIDC) and SCIM directory sync in one platform with a clean API, plus device fingerprinting/fraud tooling most rivals lack. Good fit when you want auth and enterprise SSO/SCIM from a single vendor rather than bolting a layer onto existing auth.
Gemini Highly flexible, API-first B2B identity engine with robust, fully programmatic SAML SSO and SCIM directory sync endpoints; natively handles complex multi-tenant organization models, JIT provisioning, and custom RBAC logic. Near-tie with PropelAuth for B2B engineering capabilities.
Grok Cohesive B2B Organizations API with SAML/OIDC, SCIM, JIT, group-to-RBAC, immediate session revoke on deprovision, and drop-in admin-portal components; 5 SSO/SCIM connections free then per-connection. Strongest when SSO/directory should live inside the same membership and session model rather than as a sidecar.
Where it falls shortper GPT Adopting Stytch for maximum benefit usually means letting it own more of your identity/auth architecture than a narrowly scoped SSO/directory-sync layer would.
per Claude Directory-sync connector breadth and admin self-serve portal maturity trail WorkOS; teams that only need embedded SSO/SCIM (and already have auth) pay for a broader platform they won't fully use.
per Gemini Pure headless architecture requires significant frontend engineering overhead because it lacks a zero-code, pre-built self-service configuration portal for end-customer IT admins.
per Grok Directory coverage is SCIM-centric versus WorkOS’s HRIS/SFTP/pull sources; per-connection fees after the free pool, and you take Stytch as the identity system of record rather than a thin federation layer.
- 3GPT #3Claude #3Gemini #5Grok —
Particularly strong for SaaS products where enterprise customers need to administer identity themselves: polished embedded Admin Portal, tenant-native SAML/OIDC SSO, SCIM user/group provisioning, role mapping, APIs for connection management, and broader B2B user-management functionality. Its customer-facing administration experience is arguably the strongest here.
+ model takes & fixes− hide details
GPT Particularly strong for SaaS products where enterprise customers need to administer identity themselves: polished embedded Admin Portal, tenant-native SAML/OIDC SSO, SCIM user/group provisioning, role mapping, APIs for connection management, and broader B2B user-management functionality. Its customer-facing administration experience is arguably the strongest here.
Claude Most complete "enterprise-grade B2B user management" out of the box — multi-tenant org hierarchy, self-serve admin portal, SSO and SCIM provisioning, entitlements and granular RBAC, plus prebuilt embeddable admin UIs that cut front-end build time sharply. Best for teams that want the whole tenant-management surface, not just protocol plumbing.
Gemini Comprehensive enterprise readiness suite featuring an embedded self-service Admin Portal that handles SAML/OIDC SSO, SCIM provisioning, granular role management, and audit logs out of the box for enterprise-grade B2B applications.
Where it falls shortper GPT It is a comparatively broad CIAM platform, so it can be heavier and more opinionated than necessary if all you want is two thin APIs for SSO and directory synchronization.
per Claude Heavier and more opinionated — you adopt its tenancy/UI model, making it awkward to retrofit onto an app with an established user/org schema; pricing and complexity are overkill if you literally just need SSO+SCIM.
per Gemini Heavy client-side component footprint and monolithic integration model that can feel rigid, complex to customize deeply, and unsuited for teams seeking lightweight, headless API control.
- 4GPT #5Claude #5Gemini #2Grok —
The leading open-source and self-hostable solution (via SAML/SCIM Jackson) for B2B enterprise federation; eliminates per-connection fees and vendor lock-in while providing complete data sovereignty inside your own VPC, alongside clean integrations into NextAuth, SuperTokens, and standard OAuth stacks.
+ model takes & fixes− hide details
Gemini The leading open-source and self-hostable solution (via SAML/SCIM Jackson) for B2B enterprise federation; eliminates per-connection fees and vendor lock-in while providing complete data sovereignty inside your own VPC, alongside clean integrations into NextAuth, SuperTokens, and standard OAuth stacks.
GPT Best open-source/self-hosted option: provides multi-tenant enterprise SSO over SAML/OIDC plus SCIM 2.0 directory sync and can run as a standalone service or be embedded into an application, eliminating the per-connection SaaS tax and giving you infrastructure/data control.
Claude The strongest open-source, self-hostable option — Apache-2.0 SAML/OIDC SSO plus a Directory Sync (SCIM) service you can run in your own infra with no per-connection vendor fees, ideal for data-residency/compliance-sensitive or cost-sensitive teams that want to avoid lock-in.
Where it falls shortper GPT You inherit deployment, upgrades, security hardening, IdP interoperability issues, monitoring, and support yourself; it is not comparable to the managed vendors operationally.
per Claude You own the operational burden (hosting, upgrades, connector debugging, IdP support) and there's no white-glove SLA or polished customer-facing admin portal — a poor trade for small teams without platform engineering capacity.
per Gemini Requires self-hosting, operational maintenance, and infrastructure monitoring, with fewer out-of-the-box non-SCIM HRIS connectors compared to managed commercial aggregators; not for lean teams wanting zero DevOps overhead.
- 5GPT #4Claude #4Gemini —Grok —
Strong B2B-native implementation with per-tenant SAML/OIDC connections, SCIM 2.0 provisioning, multiple IdPs per tenant, attribute/group-to-role mapping, self-service SSO Setup Suite, Admin Portal, and flexible workflow-based authentication. Particularly good when complicated tenant-specific authentication policies accompany the SSO requirement.
+ model takes & fixes− hide details
GPT Strong B2B-native implementation with per-tenant SAML/OIDC connections, SCIM 2.0 provisioning, multiple IdPs per tenant, attribute/group-to-role mapping, self-service SSO Setup Suite, Admin Portal, and flexible workflow-based authentication. Particularly good when complicated tenant-specific authentication policies accompany the SSO requirement.
Claude Strong SSO + SCIM provisioning with a distinctive no-code flow builder for auth journeys, non-human/agent identity support, and fine-grained authorization — competitive, often lower-cost pricing and fast integration. Good value pick for teams wanting visual control over auth and enterprise connectors together.
Where it falls shortper GPT Its flow-oriented authentication platform is more machinery than teams with an established auth system generally need, and its directory-sync ecosystem is less compelling than WorkOS's as a standalone integration layer.
per Claude Youngest of the major commercial players here, so ecosystem, third-party references, and directory-connector edge-case coverage are less battle-tested; the flow-builder abstraction can fight you on highly custom logic.
- 6GPT —Claude —Gemini —Grok #2
Closest modular overlay to the category: SAML/OIDC + SCIM on Auth0, Cognito, Firebase, or custom auth without replacing sessions/users; embeddable or link-based admin portal for SSO and SCIM; first connection free then ~$60. Rank assumes you already have auth and want enterprise federation as an add-on. Near-tie with Stytch if you would rather buy orgs+sessions from the same vendor.
+ model takes & fixes− hide details
Grok Closest modular overlay to the category: SAML/OIDC + SCIM on Auth0, Cognito, Firebase, or custom auth without replacing sessions/users; embeddable or link-based admin portal for SSO and SCIM; first connection free then ~$60. Rank assumes you already have auth and want enterprise federation as an add-on. Near-tie with Stytch if you would rather buy orgs+sessions from the same vendor.
Where it falls shortper Grok Younger catalog and less production-hardened HRIS/non-SCIM connectors than WorkOS; not the pick if you need Workday-class directories or a long track record on messy IdP edge cases.
- 7GPT —Claude —Gemini #4Grok —
Purpose-built for multi-tenant B2B SaaS with polished, ready-to-embed self-serve portals where enterprise IT admins can autonomously configure SAML SSO and SCIM syncing; dramatically shortens time-to-market for early- to mid-stage SaaS teams. Near-tie with Stytch for modern B2B development.
+ model takes & fixes− hide details
Gemini Purpose-built for multi-tenant B2B SaaS with polished, ready-to-embed self-serve portals where enterprise IT admins can autonomously configure SAML SSO and SCIM syncing; dramatically shortens time-to-market for early- to mid-stage SaaS teams. Near-tie with Stytch for modern B2B development.
Where it falls shortper Gemini Functions primarily as a complete, opinionated auth and tenant management platform, making it a poor fit for teams that only need an isolated SSO/SCIM API layer bolted onto a legacy auth backend.
- 8GPT —Claude —Gemini —Grok #4
Same job as WorkOS (SAML/OIDC + SCIM + orgs, layerable on existing auth) at flat/low per-connection economics that stay predictable at 50–200 enterprise customers; SOC 2 and a usable self-serve setup path. Rank assumes unit economics at connection scale are the binding constraint and Okta/Entra/Google cover most of the book.
+ model takes & fixes− hide details
Grok Same job as WorkOS (SAML/OIDC + SCIM + orgs, layerable on existing auth) at flat/low per-connection economics that stay predictable at 50–200 enterprise customers; SOC 2 and a usable self-serve setup path. Rank assumes unit economics at connection scale are the binding constraint and Okta/Entra/Google cover most of the book.
Where it falls shortper Grok Smaller ecosystem and thinner long-tail IdP/HRIS/event-reconciliation depth than WorkOS; not for teams that need the most battle-tested Admin Portal and directory normalization.
- 9GPT —Claude —Gemini —Grok #5
Only serious open-source embedded option with both SAML/OIDC (Jackson-style SAML-as-OAuth) and SCIM directory sync, runnable self-hosted or as Ory’s managed service, so you keep data path and cost under your control. Rank assumes ops capacity and a need to avoid per-connection SaaS tax.
+ model takes & fixes− hide details
Grok Only serious open-source embedded option with both SAML/OIDC (Jackson-style SAML-as-OAuth) and SCIM directory sync, runnable self-hosted or as Ory’s managed service, so you keep data path and cost under your control. Rank assumes ops capacity and a need to avoid per-connection SaaS tax.
Where it falls shortper Grok You operate protocol, cert rotation, and customer onboarding yourself; connector polish, hosted IT-admin UX, and non-SCIM directories lag the commercial APIs.
By use case
How this board's leaders rank when the same four models are asked a more specific question.
| Product | This board | multi-tenant authentication platform | SCIM provisioning applications | Authentication provider | customer identity platforms multi-tenant | enterprise |
|---|---|---|---|---|---|---|
| WorkOS | #1 | #1 | #1 | #1 | #1 | #1 |
| Stytch | #2 | #7 | #3 | #5 | #2 | #3 |
| Frontegg | #3 | #6 | #9 | — | #3 | #5 |
| BoxyHQ | #4 | — | #6 | — | — | — |
| Descope | #5 | #3 | — | #4 | #6 | #4 |
| Scalekit | #6 | — | #2 | — | — | — |
| PropelAuth | #7 | #2 | — | #7 | — | — |
Just missed the top 5
GPT Auth0 — excellent enterprise authentication and mature SAML/OIDC support, but its B2B provisioning/SCIM story and pricing make it less attractive specifically as an embedded SSO + directory-sync API · Clerk — excellent developer experience and increasingly capable B2B organizations/enterprise SSO, but directory provisioning remains a weaker reason to choose it over the specialists above
Claude Auth0 by Okta — excellent enterprise SSO via Organizations/enterprise connections and huge ecosystem, but SCIM directory-sync provisioning is comparatively weaker/less turnkey and pricing/complexity skew heavy for the embedded-B2B use case
Gemini Auth0 by Okta — Pervasive brand with broad SAML coverage, but embedded multi-tenant SCIM directory sync remains fragmented, expensive, and clunky to embed natively
Grok Frontegg — excellent embedded tenant Admin Portal and SSO/SCIM, but it wants to own users, sessions, and tenancy rather than act as a thin SSO/directory API · Clerk — unified React/Next orgs+SSO with SCIM GA in 2026, but narrower IdP catalog and self-serve directory setup still behind WorkOS-class portals
By model
ChatGPT
- 1.WorkOS
- 2.Stytch
- 3.Frontegg
- 4.Descope
- 5.BoxyHQ
Claude
- 1.WorkOS
- 2.Stytch
- 3.Frontegg
- 4.Descope
- 5.BoxyHQ
Gemini
- 1.WorkOS
- 2.BoxyHQ
- 3.Stytch
- 4.PropelAuth
- 5.Frontegg
Grok
- 1.WorkOS
- 2.Scalekit
- 3.Stytch
- 4.SSOJet
- 5.Ory Polis
Common questions
What is the best embedded sso and directory sync apis for b2b saas according to AI models?
WorkOS leads. All 4 models rank WorkOS the top pick. The current top 3: WorkOS, Stytch, Frontegg. Ranked by asking ChatGPT, Claude, Gemini, Grok the same buying question and merging their top-5 picks, updated 2026-09-04. Source: modelsagree.com.
Which embedded sso and directory sync apis for b2b saas did each AI model pick first?
ChatGPT: WorkOS. Claude: WorkOS. Gemini: WorkOS. Grok: WorkOS.
How is this embedded sso and directory sync apis for b2b saas ranking made?
ChatGPT, Claude, Gemini, Grok are each asked the same buying question in a fresh session with no system steering. Their top-5 answers are merged (rank 1 = 5 pts … rank 5 = 1 pt) into the consensus ranking, re-polled on demand and tracked over time.
More on how polling works: full methodology →
Cite this ranking
ModelsAgree, “Best embedded SSO and directory sync APIs for B2B SaaS” — merged ranking from ChatGPT, Claude, Gemini & Grok, polled 2026-09-04. https://modelsagree.com/best/best-embedded-sso-and-directory-sync-apis-for-b2b-saas (CC BY 4.0)
Tracked by ModelsAgree · rank 1 = 5 pts … rank 5 = 1 pt · re-polled on demand