MainStreet · Authentication Profile

Mainstreet Authentication

Authentication

MainStreet secures its APIs with openIdConnect and oauth2 across 1 declared security scheme, as derived from its OpenAPI definitions. OAuth 2.0 is offered via the authorization_code, client_credentials, refresh_token, implicit, password, and device_code flow(s).

CompanyTaxTax CreditsAccountingFinancial ServicesSmall BusinessFintechBookkeepingCompliancePayroll
Methods: openIdConnect, oauth2 Schemes: 1 OAuth flows: authorization_code, client_credentials, refresh_token, implicit, password, device_code API key in:

Security Schemes

MainStreet OIDC (Auth0 tenant) openIdConnect

Source

Authentication Profile

mainstreet-authentication.yml Raw ↑ 
generated: '2026-08-04'
method: probed
source: https://login.mainstreet.com/.well-known/openid-configuration
docs: https://login.mainstreet.com/.well-known/openid-configuration
summary:
  types:
  - openIdConnect
  - oauth2
  oauth2_flows:
  - authorization_code
  - client_credentials
  - refresh_token
  - implicit
  - password
  - device_code
  pkce: true
  pkce_methods:
  - S256
  - plain
  dpop: true
  mfa: true
  note: >-
    MainStreet publishes no public product API and no OpenAPI document. The only
    machine-readable authentication contract it serves is the OIDC/OAuth 2.0
    discovery pair on its Auth0-hosted identity domain, which backs sign-in to the
    client portal (dashboard.mainstreet.com) and the bookkeeping app
    (books.mainstreet.com). This profile is transcribed from that discovery
    document — nothing here is inferred.
schemes:
- name: MainStreet OIDC (Auth0 tenant)
  type: openIdConnect
  openIdConnectUrl: https://login.mainstreet.com/.well-known/openid-configuration
  issuer: https://login.mainstreet.com/
  endpoints:
    authorization: https://login.mainstreet.com/authorize
    token: https://login.mainstreet.com/oauth/token
    userinfo: https://login.mainstreet.com/userinfo
    jwks: https://login.mainstreet.com/.well-known/jwks.json
    revocation: https://login.mainstreet.com/oauth/revoke
    registration: https://login.mainstreet.com/oidc/register
    device_authorization: https://login.mainstreet.com/oauth/device/code
    backchannel_authentication: https://login.mainstreet.com/bc-authorize
    mfa_challenge: https://login.mainstreet.com/mfa/challenge
    global_token_revocation: https://login.mainstreet.com/oauth/global-token-revocation/connection/{connectionName}
  grant_types:
  - client_credentials
  - authorization_code
  - refresh_token
  - password
  - implicit
  - urn:ietf:params:oauth:grant-type:device_code
  - urn:ietf:params:oauth:grant-type:token-exchange
  - urn:ietf:params:oauth:grant-type:jwt-bearer
  - http://auth0.com/oauth/grant-type/password-realm
  - http://auth0.com/oauth/grant-type/passwordless/otp
  - http://auth0.com/oauth/grant-type/mfa-oob
  - http://auth0.com/oauth/grant-type/mfa-otp
  - http://auth0.com/oauth/grant-type/mfa-recovery-code
  authorization_grant_profiles:
  - urn:ietf:params:oauth:grant-profile:id-jag
  backchannel_token_delivery_modes:
  - poll
  response_types:
  - code
  - token
  - id_token
  - code token
  - code id_token
  - token id_token
  - code token id_token
  response_modes:
  - query
  - fragment
  - form_post
  token_endpoint_auth_methods:
  - client_secret_basic
  - client_secret_post
  - private_key_jwt
  - none
  token_endpoint_auth_signing_algs:
  - RS256
  - RS384
  - PS256
  id_token_signing_algs:
  - HS256
  - RS256
  - PS256
  code_challenge_methods:
  - S256
  - plain
  dpop_signing_algs:
  - ES256
  subject_types:
  - public
  backchannel_logout_supported: true
  backchannel_logout_session_supported: true
  request_parameter_supported: false
  request_uri_parameter_supported: false
  sources:
  - well-known/mainstreet-openid-configuration.json
  - well-known/mainstreet-oauth-authorization-server.json
human_auth:
  login_url: https://login.mainstreet.com/u/login
  sign_up_url: https://dashboard.mainstreet.com/welcome
  note: >-
    End users authenticate through the hosted Auth0 universal login; there is no
    published developer API key, personal access token, or partner credential
    program on MainStreet's public surface.
x-evidence:
  fetched: '2026-08-04'
  url: https://login.mainstreet.com/.well-known/openid-configuration
  http_status: 200
  content_type: application/json