chore: MCP-233 config to provide voyage API key

Author: himanshusinghs

README.md

@@ -360,6 +360,7 @@ The MongoDB MCP Server can be configured using multiple methods, with the follow
 | `exportTimeoutMs`                      | `MDB_MCP_EXPORT_TIMEOUT_MS`                         | 300000                                                                      | Time in milliseconds after which an export is considered expired and eligible for cleanup.                                                                                                              |
 | `exportCleanupIntervalMs`              | `MDB_MCP_EXPORT_CLEANUP_INTERVAL_MS`                | 120000                                                                      | Time in milliseconds between export cleanup cycles that remove expired export files.                                                                                                                    |
 | `atlasTemporaryDatabaseUserLifetimeMs` | `MDB_MCP_ATLAS_TEMPORARY_DATABASE_USER_LIFETIME_MS` | 14400000                                                                    | Time in milliseconds that temporary database users created when connecting to MongoDB Atlas clusters will remain active before being automatically deleted.                                             |
+| `voyageApiKey`                         | `MDB_VOYAGE_API_KEY`                                | <not set>                                                                   | API key for communicating with Voyage AI. Used for generating embeddings for Vector search.                                                                                                             |
 
 #### Logger Options
 

src/common/config.ts

@@ -53,6 +53,7 @@ const OPTIONS = {
         "exportsPath",
         "exportTimeoutMs",
         "exportCleanupIntervalMs",
+        "voyageApiKey",
     ],
     boolean: [
         "apiDeprecationErrors",
@@ -181,6 +182,7 @@ export interface UserConfig extends CliOptions {
     maxDocumentsPerQuery: number;
     maxBytesPerQuery: number;
     atlasTemporaryDatabaseUserLifetimeMs: number;
+    voyageApiKey: string;
 }
 
 export const defaultUserConfig: UserConfig = {
@@ -210,6 +212,7 @@ export const defaultUserConfig: UserConfig = {
     maxDocumentsPerQuery: 100, // By default, we only fetch a maximum 100 documents per query / aggregation
     maxBytesPerQuery: 16 * 1024 * 1024, // By default, we only return ~16 mb of data per query / aggregation
     atlasTemporaryDatabaseUserLifetimeMs: 4 * 60 * 60 * 1000, // 4 hours
+    voyageApiKey: "",
 };
 
 export const config = setupUserConfig({