Gmail
OAuth 2.0 communicationGmail
What you can do
Section titled “What you can do”Connect this agent connector to let your agent:
- Read emails — fetch messages, threads, and attachments from any label or inbox
- Send and reply — compose new emails and reply to existing threads on behalf of your users
- Search messages — query Gmail with full search syntax to find emails by sender, subject, or content
- Manage labels — apply, remove, and list labels to organize messages
- Access contacts — look up contacts and people from the user’s address book
Authentication
Section titled “Authentication”This connector uses OAuth 2.0. Scalekit acts as the OAuth client: it redirects your user to Gmail, obtains an access token, and automatically refreshes it before it expires. Your agent code never handles tokens directly — you only pass a connectionName and a user identifier.
You supply your Gmail Connected App credentials (Client ID + Secret) once per environment in the Scalekit dashboard.
Set up the connector
Register your Scalekit environment with the Gmail connector so Scalekit handles the authentication flow and token lifecycle for you. The connection name you create will be used to identify and invoke the connection programmatically. Then complete the configuration in your application as follows:
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Set up auth redirects
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In Scalekit dashboard, go to Agent Auth → Create Connection. Find Gmail and click Create.
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Click Use your own credentials and copy the redirect URI. It looks like
https://<SCALEKIT_ENVIRONMENT_URL>/sso/v1/oauth/<CONNECTION_ID>/callback.
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Navigate to Google Cloud Console → APIs & Services → Credentials. Click + Create Credentials, then OAuth client ID. Choose Web application as the application type.

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Under Authorized redirect URIs, click + Add URI, paste the redirect URI, and click Create.

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Enable Gmail API
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In Google Cloud Console, go to APIs & Services → Library. Search for “Gmail API” and click Enable.

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Get client credentials
Google provides your Client ID and Client Secret after you create the OAuth client ID in step 1.
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Add credentials in Scalekit
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In Scalekit dashboard, go to Agent Auth → Connections and open the connection you created.
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Enter your credentials:
- Client ID (from above)
- Client Secret (from above)
- Permissions (scopes beginning with
gmail— see Google API Scopes reference)

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Click Save.
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Code examples
Connect a user’s Gmail account and make API calls on their behalf — Scalekit handles OAuth and token management automatically.
Proxy API Calls
import { ScalekitClient } from '@scalekit-sdk/node';import 'dotenv/config';
const connectionName = 'gmail'; // get your connection name from connection configurationsconst identifier = 'user_123'; // your unique user identifier
// Get your credentials from app.scalekit.com → Developers → Settings → API Credentialsconst scalekit = new ScalekitClient( process.env.SCALEKIT_ENV_URL, process.env.SCALEKIT_CLIENT_ID, process.env.SCALEKIT_CLIENT_SECRET);const actions = scalekit.actions;
// Authenticate the userconst { link } = await actions.getAuthorizationLink({ connectionName, identifier,});console.log('🔗 Authorize Gmail:', link); // present this link to your user for authorization, or click it yourself for testingprocess.stdout.write('Press Enter after authorizing...');await new Promise(r => process.stdin.once('data', r));
// Make a request via Scalekit proxyconst result = await actions.request({ connectionName, identifier, path: '/gmail/v1/users/me/profile', method: 'GET',});console.log(result);import scalekit.client, osfrom dotenv import load_dotenvload_dotenv()
connection_name = "gmail" # get your connection name from connection configurationsidentifier = "user_123" # your unique user identifier
# Get your credentials from app.scalekit.com → Developers → Settings → API Credentialsscalekit_client = scalekit.client.ScalekitClient( client_id=os.getenv("SCALEKIT_CLIENT_ID"), client_secret=os.getenv("SCALEKIT_CLIENT_SECRET"), env_url=os.getenv("SCALEKIT_ENV_URL"),)actions = scalekit_client.actions
# Authenticate the userlink_response = actions.get_authorization_link( connection_name=connection_name, identifier=identifier)# present this link to your user for authorization, or click it yourself for testingprint("🔗 Authorize Gmail:", link_response.link)input("Press Enter after authorizing...")
# Make a request via Scalekit proxyresult = actions.request( connection_name=connection_name, identifier=identifier, path="/gmail/v1/users/me/profile", method="GET")print(result)Tool list
Section titled “Tool list” gmail_fetch_mails Fetch emails from a connected Gmail account using search filters. Requires a valid Gmail OAuth2 connection. 8 params
Fetch emails from a connected Gmail account using search filters. Requires a valid Gmail OAuth2 connection.
format string optional Format of the returned message. include_spam_trash boolean optional Whether to fetch emails from spam and trash folders label_ids array optional Gmail label IDs to filter messages max_results integer optional Maximum number of emails to fetch page_token string optional Page token for pagination query string optional Search query string using Gmail's search syntax (e.g., 'is:unread from:user@example.com') schema_version string optional Optional schema version to use for tool execution tool_version string optional Optional tool version to use for execution gmail_get_attachment_by_id Retrieve a specific attachment from a Gmail message using the message ID and attachment ID. 5 params
Retrieve a specific attachment from a Gmail message using the message ID and attachment ID.
attachment_id string required Unique Gmail attachment ID message_id string required Unique Gmail message ID that contains the attachment file_name string optional Preferred filename to use when saving/returning the attachment schema_version string optional Optional schema version to use for tool execution tool_version string optional Optional tool version to use for execution gmail_get_contacts Fetch a list of contacts from the connected Gmail account. Supports pagination and field filtering. 5 params
Fetch a list of contacts from the connected Gmail account. Supports pagination and field filtering.
max_results integer optional Maximum number of contacts to fetch page_token string optional Token to retrieve the next page of results person_fields array optional Fields to include for each person schema_version string optional Optional schema version to use for tool execution tool_version string optional Optional tool version to use for execution gmail_get_message_by_id Retrieve a specific Gmail message using its message ID. Optionally control the format of the returned data. 4 params
Retrieve a specific Gmail message using its message ID. Optionally control the format of the returned data.
message_id string required Unique Gmail message ID format string optional Format of the returned message. schema_version string optional Optional schema version to use for tool execution tool_version string optional Optional tool version to use for execution gmail_get_thread_by_id Retrieve a specific Gmail thread by thread ID. Optionally control message format and metadata headers. Requires a valid Gmail OAuth2 connection with read access. 5 params
Retrieve a specific Gmail thread by thread ID. Optionally control message format and metadata headers. Requires a valid Gmail OAuth2 connection with read access.
thread_id string required Unique Gmail thread ID format string optional Format of messages in the returned thread. metadata_headers array optional Specific email headers to include when format is metadata schema_version string optional Optional schema version to use for tool execution tool_version string optional Optional tool version to use for execution gmail_list_drafts List draft emails from a connected Gmail account. Requires a valid Gmail OAuth2 connection. 4 params
List draft emails from a connected Gmail account. Requires a valid Gmail OAuth2 connection.
max_results integer optional Maximum number of drafts to fetch page_token string optional Page token for pagination schema_version string optional Optional schema version to use for tool execution tool_version string optional Optional tool version to use for execution gmail_list_threads List threads in a connected Gmail account using optional search and label filters. Requires a valid Gmail OAuth2 connection with read access. 7 params
List threads in a connected Gmail account using optional search and label filters. Requires a valid Gmail OAuth2 connection with read access.
include_spam_trash boolean optional Whether to include threads from Spam and Trash label_ids array optional Gmail label IDs to filter threads (threads must match all labels) max_results integer optional Maximum number of threads to return page_token string optional Page token for pagination query string optional Search query string using Gmail search syntax (for example, 'is:unread from:user@example.com') schema_version string optional Optional schema version to use for tool execution tool_version string optional Optional tool version to use for execution gmail_search_people Search people or contacts in the connected Google account using a query. Requires a valid Google OAuth2 connection with People API scopes. 6 params
Search people or contacts in the connected Google account using a query. Requires a valid Google OAuth2 connection with People API scopes.
query string required Text query to search people (e.g., name, email address). other_contacts boolean optional Whether to include people not in the user's contacts (from 'Other Contacts'). page_size integer optional Maximum number of people to return. person_fields array optional Fields to retrieve for each person. schema_version string optional Optional schema version to use for tool execution tool_version string optional Optional tool version to use for execution