Vercel

Sign in with Vercel. OAuth2 with required PKCE (S256); no default scopes.

Configure

from better_auth import BetterAuth
from better_auth.oauth.providers_ext import Vercel

auth = BetterAuth(
    secret=...,
    social_providers={
        "vercel": Vercel(client_id="…", client_secret="…"),
    },
)

Or name-keyed (no import):

auth = BetterAuth(
    secret=...,
    social_providers={
        "vercel": {"client_id": "…", "client_secret": "…"},
    },
)

Options

Field	Type	Default	Notes
client_id	str | list[str]	required
client_secret	str	required

All shared ProviderConfig options apply.

Notes

• Default scopes: none — a scope param is only sent when you configure scopes explicitly.
• Register {base_url}{base_path}/callback/vercel as the redirect URI on the Vercel integration.
• PKCE is mandatory — building the authorize URL without a code verifier raises (matching TS, where every other PKCE provider just omits the challenge silently).
• Display name prefers name, falling back to preferred_username.