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It's a split decision.
WorkOS is the clearer fit for app teams adding enterprise authentication: AuthKit includes up to 1 million monthly active users free, while SSO and Directory Sync are priced per connection. Prove is aimed at businesses verifying people, businesses, and AI agents across onboarding and authentication. Its pricing is custom and not published, so costs are harder to compare. These products overlap in authentication, but they solve different primary problems; choose based on whether you need enterprise app identity or identity verification.
01Side by side
| Prove | WorkOS | |
|---|---|---|
| Starting price | Custom quote; pricing not published | Free AuthKit; SSO starts at $125/connection/month |
| Free plan | No free plan listed | AuthKit: up to 1 million monthly active users free |
| Best for | Verifying people, businesses, and AI agents | Adding enterprise identity features to applications |
| Core strength | Identity verification and authentication | SSO, user management, and directory sync |
| Learning curve | Review ease score: 5/10 | Review ease score: 6/10 |
| Integrations/data | Verified identity data; integrations not published | SAML, OIDC, SCIM, and HRIS integrations |
| Team/seat costs | Custom quote; seat pricing not published | Per-connection fees; seat pricing not published |
| Support | Support terms not published | Annual Credits lists guaranteed support SLA |
Prove Choose Prove if
- Choose Prove if you need identity verification for people, businesses, or agents.
- Choose Prove if onboarding and returning-user authentication are central requirements.
- Choose Prove if you can request a custom quote before comparing costs.
WorkOS Choose WorkOS if
- Choose WorkOS if you need enterprise SSO and directory sync in your app.
- Choose WorkOS if AuthKit's free allowance fits your user volume.
- Choose WorkOS if per-connection pricing works for your enterprise customers.
02Pricing compared
WorkOS gives buyers more to compare up front; Prove’s pricing is custom and not published. According to the WorkOS pricing details, AuthKit is free for up to 1 million monthly active users, and Pay as you go includes the first 1 million active users free. Single Sign-On and Directory Sync each cost $125 per connection per month for 1–15 connections, with listed rates falling to $65 per connection for 51–100. Audit log streaming costs $125 per month per SIEM connection; event retention is $99 per million events stored. Prove lists a custom quote, with no published monthly or annual rates. Annual Credits rates for WorkOS are also unpublished. If you need a comparable total, ask both vendors for a quote based on your connections, usage, and required features.
03Features and depth
These products overlap in authentication, but they address different main jobs. WorkOS is built for app teams adding enterprise identity features: its listed tools cover SAML or OIDC single sign-on, user and organization management, SCIM and HRIS directory sync, an admin portal, multi-factor authentication, and role-based access control. Radar adds bot and fraud checks, with the first 1,000 checks free according to the pricing details. Prove focuses on verifying identities and authenticating people, businesses, and AI agents. Its listed capabilities include identity pre-fill, optional KYC checks, human verification, account opening, verified users, unified authentication, and agent verification. That includes linking agents to users and securing transactions. Choose WorkOS when corporate identity integrations and app access controls are the requirement. Choose Prove when verifying who or what is interacting with a business is the core problem. Neither feature list makes the two a direct substitute for every use case.
04Ease of use and learning curve
Both products are described as API-based, so teams should expect implementation work rather than a no-code switch. WorkOS lists building blocks for enterprise app identity, plus an Admin Portal for corporate IT admins to configure the service. Its Annual Credits option includes guided migration and onboarding, though that plan’s rates are not published. Prove lists verification and authentication APIs, but the published information does not spell out setup steps, implementation time, or onboarding support. We would compare the integration requirements for your exact use case before judging which is easier. If you need enterprise SSO or directory sync, start with WorkOS’s connection model; if you need identity checks or agent verification, ask Prove what integration and support its quote includes.
Questions people ask
Is WorkOS a direct alternative to Prove?
Only for some authentication needs. WorkOS focuses on enterprise identity features for apps, including SSO and directory sync. Prove focuses on identity verification and authentication for people, businesses, and AI agents. Choose based on the problem you need to solve, not the shared use of authentication.
Which product is cheaper?
WorkOS is easier to estimate from published rates: AuthKit is free up to 1 million monthly active users, while SSO and Directory Sync have per-connection pricing. Prove’s pricing is custom and unpublished, so we can’t make a reliable like-for-like cost comparison without quotes.
Can WorkOS verify people or businesses?
The published WorkOS feature details describe enterprise app identity, user management, directory sync, access control, audit logs, and bot and fraud checks. They do not list Prove-style identity verification for people, businesses, or AI agents. Confirm requirements with WorkOS before treating its fraud features as identity verification.
Does Prove offer enterprise SSO and directory sync?
The published Prove feature list covers identity verification, authentication, account opening, and AI agent verification. It does not list SAML or OIDC SSO or SCIM and HRIS directory sync. WorkOS lists those enterprise identity capabilities, so check with Prove directly if they are required.