create_send_as
Configure custom email aliases in Gmail to send messages from different addresses while maintaining a unified inbox.
Instructions
Creates a custom send-as alias
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| sendAsEmail | Yes | The email address that appears in the 'From:' header | |
| displayName | No | A name that appears in the 'From:' header | |
| replyToAddress | No | An optional email address that is included in a 'Reply-To:' header | |
| signature | No | An optional HTML signature | |
| isPrimary | No | Whether this address is the primary address | |
| treatAsAlias | No | Whether Gmail should treat this address as an alias |
Implementation Reference
- src/index.ts:1113-1128 (registration)Registers the MCP tool 'create_send_as' with input schema, description, and inline handler function that uses handleTool to call Gmail API users.settings.sendAs.createserver.tool("create_send_as", "Creates a custom send-as alias", { sendAsEmail: z.string().describe("The email address that appears in the 'From:' header"), displayName: z.string().optional().describe("A name that appears in the 'From:' header"), replyToAddress: z.string().optional().describe("An optional email address that is included in a 'Reply-To:' header"), signature: z.string().optional().describe("An optional HTML signature"), isPrimary: z.boolean().optional().describe("Whether this address is the primary address"), treatAsAlias: z.boolean().optional().describe("Whether Gmail should treat this address as an alias") }, async (params) => { return handleTool(config, async (gmail: gmail_v1.Gmail) => { const { data } = await gmail.users.settings.sendAs.create({ userId: 'me', requestBody: params }) return formatResponse(data) }) }
- src/index.ts:1123-1128 (handler)Handler function for create_send_as tool: invokes Gmail API to create a new send-as alias using the provided parameters.async (params) => { return handleTool(config, async (gmail: gmail_v1.Gmail) => { const { data } = await gmail.users.settings.sendAs.create({ userId: 'me', requestBody: params }) return formatResponse(data) }) }
- src/index.ts:1116-1121 (schema)Zod input schema defining parameters for creating a send-as alias: sendAsEmail (required), displayName, replyToAddress, signature, isPrimary, treatAsAlias (optional).sendAsEmail: z.string().describe("The email address that appears in the 'From:' header"), displayName: z.string().optional().describe("A name that appears in the 'From:' header"), replyToAddress: z.string().optional().describe("An optional email address that is included in a 'Reply-To:' header"), signature: z.string().optional().describe("An optional HTML signature"), isPrimary: z.boolean().optional().describe("Whether this address is the primary address"), treatAsAlias: z.boolean().optional().describe("Whether Gmail should treat this address as an alias")
- src/index.ts:50-66 (helper)Shared helper function handleTool that sets up OAuth2 client, validates credentials, creates Gmail client, executes the provided apiCall, and handles errors. Used by create_send_as handler.const handleTool = async (queryConfig: Record<string, any> | undefined, apiCall: (gmail: gmail_v1.Gmail) => Promise<any>) => { try { const oauth2Client = queryConfig ? createOAuth2Client(queryConfig) : defaultOAuth2Client if (!oauth2Client) throw new Error('OAuth2 client could not be created, please check your credentials') const credentialsAreValid = await validateCredentials(oauth2Client) if (!credentialsAreValid) throw new Error('OAuth2 credentials are invalid, please re-authenticate') const gmailClient = queryConfig ? google.gmail({ version: 'v1', auth: oauth2Client }) : defaultGmailClient if (!gmailClient) throw new Error('Gmail client could not be created, please check your credentials') const result = await apiCall(gmailClient) return result } catch (error: any) { return `Tool execution failed: ${error.message}` } }
- src/index.ts:48-48 (helper)Helper function to format API responses into MCP content format.const formatResponse = (response: any) => ({ content: [{ type: "text", text: JSON.stringify(response) }] })