Airtable Web API

Go to Personal access tokens, click Create new token, choose the needed scopes and base/workspace access, then copy the token when Airtable shows it. Airtable only shows the secret token value once; send it as Authorization: Bearer <token>.

Go to OAuth integrations, click Register new OAuth integration, add your redirect URI, and select the scopes your app needs. Use the resulting client_id with Airtable's OAuth endpoints at https://airtable.com/oauth2/v1/authorize and https://airtable.com/oauth2/v1/token; for server-side token exchange you can optionally generate a client secret from the integration management page. Airtable supports PKCE and allows token endpoint auth methods none and client_secret_basic.