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    Introduction
    Overview
    Postman
    Organizations
      Organization object
      Create an organization
      Get an organization
      Update an organization
      Search for organizations
      Delete an organization
    Members
      Member object
      Create a Member
      Get a Member
      Get a Member (Dangerous)
      Update a Member
      Reactivate a Member
      Search for Members
      Unlink Retired Email
      Start Member Email Update

    • Delete

        • Delete a Member
        Delete Member password
        Delete Member MFA phone number
        Delete Member MFA TOTP
    RBAC
      Resource object
      Role object
      Scope object
      Get RBAC Policy
    Email magic links

    • Organization

        • Send login or signup email
        Send invite email
        Authenticate Magic Link

    • Discovery

        • Send discovery email
        Authenticate discovery Magic Link
    Email one-time passcodes (OTP)

    • Organization

        • Send login or signup OTP
        Authenticate OTP

    • Discovery

        • Send discovery OTP
        Authenticate discovery OTP
    OAuth

    • Discovery

        • Use Google for discovery
        Use Microsoft for discovery
        Use HubSpot for discovery
        Use Slack for discovery
        Use GitHub for discovery
        Authenticate discovery OAuth

    • Organization

        • Login with Google
        Login with Microsoft
        Login with HubSpot
        Login with Slack
        Login with GitHub
        Authenticate OAuth

    • Token

        • Get Google Access Token
        Get Microsoft Access Token
        Get HubSpot Access Token
        Get Slack Access Token
        Get GitHub Access Token
    Session management
      Session object
      Get JWKS
      Get Session
      Authenticate Session
      Exchange Session
      Revoke Session
      Migrate Session
      Attest Session
      Exchange Access Token
    Single sign-on (SS0)
      SAML Connection object
      OIDC Connection object
      External Connection object

    • SAML

        • Create SAML Connection
        Update SAML Connection
        Update SAML Connection by Metadata URL
        Delete SAML Verification Certificate

    • OIDC

        • Create OIDC Connection
        Update OIDC Connection
        Get OIDC Access Token

    • External

        • Create External Connection
        Update External Connection

    • Shared

        • Get SSO Connections
        Delete SSO Connection
        Start SSO Authenticate
        Complete SSO Authenticate
    SCIM
      SCIM Connection Object

    • Connection management

        • Create SCIM Connection
        Update SCIM Connection
        Delete SCIM Connection
        Get SCIM Connection

    • Token management

        • Start SCIM Token Rotation
        Complete SCIM Token Rotation
        Cancel SCIM Token Rotation

    • SCIM groups

        • Get SCIM Connection Groups
    Discovery
      Discovered Organization object
      Create Organization via Discovery
      List Organizations
      Exchange Intermediate Session
    Passwords
      Authenticate
      Discovery Authenticate
      Strength check
      Migrate

    • Create or Reset Options

        • Password reset by email start
        Password reset by email
        Password reset by existing password
        Password reset by session
        Discovery Password reset by email start
        Discovery Password reset by email
        Require Password reset by email
    Multi-Factor Authentication (MFA)

    • One-time passcodes

        • Send SMS OTP
        Authenticate SMS OTP

    • Time-based one-time passcodes

        • Create TOTP
        Authenticate TOTP
        Migrate TOTP

    • Recovery codes

        • Get recovery codes
        Recover
        Rotate recovery codes
    M2M Authentication
      M2M Client Object

    • TOKEN

        • Get Access Token
        Authenticate Access Token

    • M2M Client

        • Create M2M client
        Get M2M client
        Search M2M clients
        Update M2M client
        Delete M2M client

    • Rotate secret

        • Start secret rotation
        Rotate secret
        Cancel secret rotation
    Connected Apps
      Exchange Authorization Code
      Exchange Refresh Token

    • Tokens

        • Connected App ID Token Object
        Connected App Access Token Object

    • Configuration

        • Get JWKS
        Get OpenID Configuration

    • Methods

        • Introspect Token
        Authenticate Access Token (Local)
        Revoke Token
        Get UserInfo

    • Consent Management

        • Start OAuth Authorization
        Submit OAuth Authorization
        Get Authorized Connected Apps for an Organization
        Get Connected App Details
        Get Authorized Connected Apps for a Member
        Revoke Connected App Access to a Member

    • Application Management

        • Dynamic Client Registration
        Create Connected App
        Get Connected App
        Search Connected Apps
        Update Connected App
        Delete Connected App

    • Rotate secret

        • Start secret rotation
        Rotate secret
        Cancel secret rotation
    Impersonation
      Authenticate Token
    Resources
      Organization authentication settings
      Common email domains
      Member states
      Email templates
      URL validation
      Metadata
      SAML overview
      SAML Certificates
    Errors
      Overview
      Error object
      400
      401
      403
      404
      405
      429
      499
      500
      503
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B2B SaaS Authentication

/

API reference

/

Single sign-on (SS0)

/

Shared

/

Start SSO Authenticate

Start SSO Login Flow

GET
https://test.stytch.com/v1/public/sso/start?connection_id={connection_id}&public_token={public_token}

A client-side endpoint (can only be queried from the user's browser) that starts the SSO Authentication flow. This endpoint redirects the User to the IdP with all of the information required to complete the SSO Authentication flow. From there, the user signs into their IdP before getting redirected back to Stytch. After verifying the request, Stytch immediately redirects the user back to the redirect_url configured in the Redirect URLs page of the Stytch Dashboard.

When making a request to this endpoint, you must include one of connection_id or organization_id. If you use organization_id, that organization's default SSO connection will be used for the login flow.

Query parameters

connection_id string

The ID of the SSO connection to use for the login flow.

organization_id string

If an organization ID (or external ID) is specified, the organization's default SSO connection will be used.

public_token* string

The public token from the Stytch Dashboard is safe to embed client side. The public token authenticates the request instead of the project ID and secret since this endpoint is called client side instead of from the backend server.

pkce_code_challenge string

A base64url encoded SHA256 hash of a one time secret used to validate that the request starts and ends on the same device.

login_redirect_url string

The URL Stytch redirects to after the SSO flow is completed for a Member that already exists. This URL should be a route in your application which will run sso.authenticate (see below) and finish the login.

The URL must be configured as a Login URL in the Redirect URL page. If the field is not specified, the default Login URL will be used.

signup_redirect_url string

The URL Stytch redirects to after the SSO flow is completed for a Member that does not yet exist. This URL should be a route in your application which will run sso.authenticate (see below) and finish the login.

The URL must be configured as a Sign Up URL in the Redirect URL page. If the field is not specified, the default Sign Up URL will be used.

custom_scopes string

A list of custom scopes that will be requested on each SSOStart call, separated by the plus sign (+). The total set of scopes will be the union of: the OIDC scopes openid email profile, the scopes requested in the custom_scopes query parameter on each SSOStart call, and the scopes listed in the OIDC Connection object.

Response fields

status_code int

The HTTP status code of the response. Stytch follows standard HTTP response status code patterns, e.g. 2XX values equate to success, 3XX values are redirects, 4XX are client errors, and 5XX are server errors.

request_id string

Globally unique UUID that is returned with every API call. This value is important to log for debugging purposes; we may ask for this value to help identify a specific API call when helping you debug an issue.

redirect_url string

The url to redirect to. This should be done automatically by the browser.

// Not applicable since this endpoint is only meant to be queried on the client's browser
RESPONSE 302
302
​
{
  "status_code": 302,
  "request_id": "request-id-test-b05c992f-ebdc-489d-a754-c7e70ba13141",
  "redirect_url": "https://idp.example.com/51861cbc-d3b9-428b-9761-227f5fb12be9/sso/saml"
}
RESPONSE 400
302
​
{
    "status_code": 400,
    "request_id": "request-id-test-b05c992f-ebdc-489d-a754-c7e70ba13141",
    "error_type": "duplicate_email",
    "error_message": "A user with the specified email already exists for this project.",
    "error_url": "https://stytch.com/docs/api/errors/400"
}
RESPONSE 401
302
​
{
  "status_code": 401,
  "request_id": "request-id-test-b05c992f-ebdc-489d-a754-c7e70ba13141",
  "error_type": "unauthorized_credentials",
  "error_message": "Unauthorized credentials.",
  "error_url": "https://stytch.com/docs/api/errors/401"
}
RESPONSE 429
302
​
{
  "status_code": 429,
  "request_id": "request-id-test-b05c992f-ebdc-489d-a754-c7e70ba13141",
  "error_type": "too_many_requests",
  "error_message": "Too many requests have been made.",
  "error_url": "https://stytch.com/docs/api/errors/429"
}
RESPONSE 500
302
​
{
  "status_code": 500,
  "request_id": "request-id-test-b05c992f-ebdc-489d-a754-c7e70ba13141",
  "error_type": "internal_server_error",
  "error_message": "Oops, something seems to have gone wrong, please reach out to support@stytch.com to let us know what went wrong.",
  "error_url": "https://stytch.com/docs/api/errors/500"
}