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Twenty implements OAuth 2.0 with authorization code + PKCE for user-facing apps and client credentials for server-to-server access. Clients are registered dynamically via RFC 7591 — no manual setup in a dashboard.

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When to Use OAuth

СценарийAuth Method
Internal scripts, automationAPI Key
External app acting on behalf of a userOAuth — Authorization Code
Server-to-server, no user contextOAuth — Client Credentials
Twenty App with UI extensionsApps (OAuth is handled automatically)

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Register a Client

Twenty supports dynamic client registration per RFC 7591. No manual setup needed — register programmatically: 
POST /oauth/register
Content-Type: application/json

{
  "client_name": "My Integration",
  "redirect_uris": ["https://myapp.com/callback"],
  "grant_types": ["authorization_code"],
  "token_endpoint_auth_method": "client_secret_post"
}
Response: 
{
  "client_id": "abc123",
  "client_secret": "secret456",
  "client_name": "My Integration",
  "redirect_uris": ["https://myapp.com/callback"]
}
Store the client_secret securely — it cannot be retrieved later.

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Области действия

ScopeДоступ
apiFull read/write access to the Core and Metadata APIs
profileRead the authenticated user’s profile information
Request scopes as a space-separated string: scope=api profile

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Authorization Code Flow

Use this flow when your app acts on behalf of a Twenty user.

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1. Redirect the user to authorize

GET /oauth/authorize?
  client_id=YOUR_CLIENT_ID&
  response_type=code&
  redirect_uri=https://myapp.com/callback&
  scope=api&
  state=random_state_value&
  code_challenge=CHALLENGE&
  code_challenge_method=S256
ПараметрОбязательноОписание
client_idДаYour registered client ID
response_typeДаMust be code
redirect_uriДаMust match a registered redirect URI
scopeНетSpace-separated scopes (defaults to api)
stateРекомендуетсяRandom string to prevent CSRF attacks
code_challengeРекомендуетсяPKCE challenge (SHA-256 hash of verifier, base64url-encoded)
code_challenge_methodРекомендуетсяMust be S256 when using PKCE
The user sees a consent screen and approves or denies access.

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2. Handle the callback

After authorization, Twenty redirects back to your redirect_uri: 
https://myapp.com/callback?code=AUTH_CODE&state=random_state_value
Verify that state matches what you sent.

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3. Exchange the code for tokens

POST /oauth/token
Content-Type: application/x-www-form-urlencoded

grant_type=authorization_code&
code=AUTH_CODE&
redirect_uri=https://myapp.com/callback&
client_id=YOUR_CLIENT_ID&
client_secret=YOUR_CLIENT_SECRET&
code_verifier=YOUR_PKCE_VERIFIER
Response: 
{
  "access_token": "eyJhbG...",
  "token_type": "Bearer",
  "expires_in": 3600,
  "refresh_token": "dGhpcyBpcyBh..."
}

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4. Use the access token

GET /rest/companies
Authorization: Bearer ACCESS_TOKEN

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5. Refresh when expired

POST /oauth/token
Content-Type: application/x-www-form-urlencoded

grant_type=refresh_token&
refresh_token=YOUR_REFRESH_TOKEN&
client_id=YOUR_CLIENT_ID&
client_secret=YOUR_CLIENT_SECRET

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Client Credentials Flow

For server-to-server integrations with no user interaction: 
POST /oauth/token
Content-Type: application/x-www-form-urlencoded

grant_type=client_credentials&
client_id=YOUR_CLIENT_ID&
client_secret=YOUR_CLIENT_SECRET&
scope=api
The returned token has workspace-level access, not tied to any specific user.

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Server Discovery

Twenty publishes its OAuth configuration at a standard discovery endpoint: 
GET /.well-known/oauth-authorization-server
This returns all endpoints, supported grant types, scopes, and capabilities — useful for building generic OAuth clients.

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API Endpoints Summary

Конечная точкаНазначение
/.well-known/oauth-authorization-serverServer metadata discovery
/oauth/registerDynamic client registration
/oauth/authorizeUser authorization
/oauth/tokenToken exchange and refresh
СредаБазовый URL
Облакоhttps://api.twenty.com
Самостоятельный хостингhttps://{your-domain}

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OAuth vs API Keys

API ключиOAuth
НастройкаGenerate in SettingsRegister a client, implement flow
User contextNone (workspace-level)Specific user’s permissions
Лучше всего подходит дляScripts, internal toolsExternal apps, multi-user integrations
Token rotationВручнуюAutomatic via refresh tokens
Scoped accessFull API accessGranular via scopes