list_smime_info
Retrieve S/MIME configurations for a specified send-as email alias to manage and verify secure email settings in Gmail.
Instructions
Lists S/MIME configs for the specified send-as alias
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| sendAsEmail | Yes | The email address that appears in the 'From:' header |
Implementation Reference
- src/index.ts:1276-1287 (registration)Registration of the list_smime_info MCP tool, defining its input schema, description, and inline handler function that uses the Gmail API to list S/MIME configurations for a given send-as email address.
server.tool("list_smime_info", "Lists S/MIME configs for the specified send-as alias", { sendAsEmail: z.string().describe("The email address that appears in the 'From:' header") }, async (params) => { return handleTool(config, async (gmail: gmail_v1.Gmail) => { const { data } = await gmail.users.settings.sendAs.smimeInfo.list({ userId: 'me', sendAsEmail: params.sendAsEmail }) return formatResponse(data) }) } ) - src/index.ts:1281-1286 (handler)Handler function for list_smime_info tool, which authenticates via handleTool, calls Gmail API to list S/MIME info for the specified sendAsEmail, and formats the response.
async (params) => { return handleTool(config, async (gmail: gmail_v1.Gmail) => { const { data } = await gmail.users.settings.sendAs.smimeInfo.list({ userId: 'me', sendAsEmail: params.sendAsEmail }) return formatResponse(data) }) } - src/index.ts:1278-1280 (schema)Input schema for list_smime_info tool using Zod: requires sendAsEmail string.
{ sendAsEmail: z.string().describe("The email address that appears in the 'From:' header") }, - src/index.ts:50-80 (helper)Shared helper function handleTool used by list_smime_info (and other tools) to handle OAuth2 authentication, Gmail client creation, API call execution, and error handling.
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) { // Check for specific authentication errors if ( error.message?.includes("invalid_grant") || error.message?.includes("refresh_token") || error.message?.includes("invalid_client") || error.message?.includes("unauthorized_client") || error.code === 401 || error.code === 403 ) { return formatResponse({ error: `Authentication failed: ${error.message}. Please re-authenticate by running: npx @shinzolabs/gmail-mcp auth`, }); } return formatResponse({ error: `Tool execution failed: ${error.message}` }); } } - src/index.ts:48-48 (helper)Helper function to format API responses as MCP content blocks for list_smime_info (and other tools).
const formatResponse = (response: any) => ({ content: [{ type: "text", text: JSON.stringify(response) }] })