Add Google, Microsoft and OpenID Connect Login to Your App
I add “Sign in with Google” and “Sign in with Microsoft” to your app, connect any OpenID Connect provider, or make your app the login provider for your other apps. Accounts link safely and sessions behave. From $520 ($400 founding) for one provider, 1–2 weeks. Email me your stack.
See a sample report, proposal and weekly update- Price
- from $520
- Founding
- from $400
- Timeline
- 1–2 weeks
- Format
- Fixed scope, fixed price
- Hours
- US Eastern Time, async
Who this is for.
A good fit if
- SaaS products whose business customers ask for Google or Microsoft login
- Companies with several internal apps that want one login
- Apps whose social login creates duplicate accounts
Common triggers
- A customer’s IT team requires Microsoft login
- Users sign up twice with the same email
- You’re launching a second app and don’t want a second password
Not a fit if
- You need SAML or SCIM user provisioning (not offered)
- You need a certified identity product or compliance sign-off
- You want to build your own password-reset-and-MFA system from scratch when a provider would do
What I do, and what you get.
What I do
- Register the app with each provider and configure redirect URLs and scopes
- Implement the OpenID Connect flow with PKCE and state checks
- Link accounts by the provider’s stable user ID, not just email
- Handle Microsoft’s multi-tenant sign-in correctly, with an allow-list of organizations if you want one
- Add optional two-factor codes (TOTP) for password users
- On the Plus plan: make your app an OpenID Connect provider for your other apps
What you get
- Login code in your app, with tests
- Provider registration notes: what’s configured where, and who owns it
- An account-linking rules document
- Handover notes and a 14-day fix window
Your part
- Admin access to your Google Cloud and Microsoft Entra accounts (or someone who can click the buttons)
- Your privacy policy and terms URLs for consent screens
- Decisions on who may sign in
Included
- Google, Microsoft and generic OIDC login
- Account linking and session handling
- Optional TOTP two-factor
- Your app as an OIDC provider (Plus)
Not included
- SAML and SCIM provisioning
- Identity-provider licensing
- Passkeys (quoted separately)
- Security certification
Fixed prices, agreed before work starts.
Google or Microsoft login.
Google + Microsoft + one OIDC provider, with account linking.
Your app as the OIDC provider for your other apps.
Build your scope
- Timeline
- 1–2 weeks
- Payment
- Paid in full before work starts
- Earliest start
- Oct 5
Founding price: 3 of 7 spots left, until Mar 31, 2027 — one-off work, in return for a testimonial. How it works
Prices are in USD, paid by bank transfer against an invoice. Work under $1,000 is paid upfront; larger work is 50% to start and 50% before handover, or monthly milestones. How working together works
Variations
- Laravel
- Socialite or a direct OIDC client.
- Go or Python APIs
- OIDC libraries with token verification against the provider’s keys.
- Single sign-on across your apps
- Your main app issues logins to the others.
How it runs.
- 01
Stack and providers
You tell me your stack and which providers you need.
- 02
Scope and linking rules
I send a fixed scope and the account-linking rules.
- 03
Provider setup together
We register the app with each provider together.
- 04
Build and test
I build it and test with real accounts.
- 05
Handover
You get the handover pack and a 14-day fix window.
Where I have done this before.
Licensing & Entitlement Platform
Ships its own OpenID Connect provider, argon2id passwords and TOTP two-factor for operators.
Read the case study →Secure streaming · E-learningAnti-Piracy Video LMS
Single-device sessions and a two-step sign-in via short-lived signed links.
Read the case study →Questions buyers ask.
Can users keep their password login too?
Yes. They can link Google or Microsoft to an existing account.
What if two accounts share an email?
We set a rule up front; by default I link only on a verified email and the provider’s stable ID.
Can we limit Microsoft login to certain companies?
Yes, with an allow-list of tenants.
Do you do SAML?
No. Most small-business customers are covered by Google and Microsoft OIDC.
Ask about Login & SSO.
Tell me what you have and where it hurts. I reply within one US business day with either a fixed quote or the entry step that makes a fixed quote possible.
Helpful to include
- Stack and versions
- Providers needed
- Existing auth (passwords? MFA?)
- Number of apps
- Who administers the Google and Microsoft accounts
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