feat(memory-lancedb): Custom OpenAI BaseURL & Dimensions Support (#17874)

* feat(memory-lancedb): add custom baseUrl and dimensions support

* fix(memory-lancedb): strict model typing and safe dimension resolution

* style: fix formatting in memory-lancedb config

* fix(memory-lancedb): sync manifest schema with new embedding options

---------

Co-authored-by: OpenClaw Bot <bot@openclaw.ai>

extensions/memory-lancedb/config.ts

@@ -5,8 +5,10 @@ import { join } from "node:path";
 export type MemoryConfig = {
   embedding: {
     provider: "openai";
-    model?: string;
+    model: string;
     apiKey: string;
+    baseUrl?: string;
+    dimensions?: number;
   };
   dbPath?: string;
   autoCapture?: boolean;
@@ -81,7 +83,9 @@ function resolveEnvVars(value: string): string {
 
 function resolveEmbeddingModel(embedding: Record<string, unknown>): string {
   const model = typeof embedding.model === "string" ? embedding.model : DEFAULT_MODEL;
-  vectorDimsForModel(model);
+  if (typeof embedding.dimensions !== "number") {
+    vectorDimsForModel(model);
+  }
   return model;
 }
 
@@ -101,7 +105,7 @@ export const memoryConfigSchema = {
     if (!embedding || typeof embedding.apiKey !== "string") {
       throw new Error("embedding.apiKey is required");
     }
-    assertAllowedKeys(embedding, ["apiKey", "model"], "embedding config");
+    assertAllowedKeys(embedding, ["apiKey", "model", "baseUrl", "dimensions"], "embedding config");
 
     const model = resolveEmbeddingModel(embedding);
 
@@ -119,6 +123,9 @@ export const memoryConfigSchema = {
         provider: "openai",
         model,
         apiKey: resolveEnvVars(embedding.apiKey),
+        baseUrl:
+          typeof embedding.baseUrl === "string" ? resolveEnvVars(embedding.baseUrl) : undefined,
+        dimensions: typeof embedding.dimensions === "number" ? embedding.dimensions : undefined,
       },
       dbPath: typeof cfg.dbPath === "string" ? cfg.dbPath : DEFAULT_DB_PATH,
       autoCapture: cfg.autoCapture === true,
@@ -133,6 +140,18 @@ export const memoryConfigSchema = {
       placeholder: "sk-proj-...",
       help: "API key for OpenAI embeddings (or use ${OPENAI_API_KEY})",
     },
+    "embedding.baseUrl": {
+      label: "Base URL",
+      placeholder: "https://api.openai.com/v1",
+      help: "Base URL for compatible providers (e.g. http://localhost:11434/v1)",
+      advanced: true,
+    },
+    "embedding.dimensions": {
+      label: "Dimensions",
+      placeholder: "1536",
+      help: "Vector dimensions for custom models (required for non-standard models)",
+      advanced: true,
+    },
     "embedding.model": {
       label: "Embedding Model",
       placeholder: DEFAULT_MODEL,

extensions/memory-lancedb/index.ts

@@ -166,8 +166,9 @@ class Embeddings {
   constructor(
     apiKey: string,
     private model: string,
+    baseUrl?: string,
   ) {
-    this.client = new OpenAI({ apiKey });
+    this.client = new OpenAI({ apiKey, baseURL: baseUrl });
   }
 
   async embed(text: string): Promise<number[]> {
@@ -293,9 +294,11 @@ const memoryPlugin = {
   register(api: OpenClawPluginApi) {
     const cfg = memoryConfigSchema.parse(api.pluginConfig);
     const resolvedDbPath = api.resolvePath(cfg.dbPath!);
-    const vectorDim = vectorDimsForModel(cfg.embedding.model ?? "text-embedding-3-small");
+    const { model, dimensions, apiKey, baseUrl } = cfg.embedding;
+
+    const vectorDim = dimensions ?? vectorDimsForModel(model);
     const db = new MemoryDB(resolvedDbPath, vectorDim);
-    const embeddings = new Embeddings(cfg.embedding.apiKey, cfg.embedding.model!);
+    const embeddings = new Embeddings(apiKey, model, baseUrl);
 
     api.logger.info(`memory-lancedb: plugin registered (db: ${resolvedDbPath}, lazy init)`);
 

extensions/memory-lancedb/openclaw.plugin.json

@@ -13,6 +13,18 @@
       "placeholder": "text-embedding-3-small",
       "help": "OpenAI embedding model to use"
     },
+    "embedding.baseUrl": {
+      "label": "Base URL",
+      "placeholder": "https://api.openai.com/v1",
+      "help": "Base URL for compatible providers (e.g. http://localhost:11434/v1)",
+      "advanced": true
+    },
+    "embedding.dimensions": {
+      "label": "Dimensions",
+      "placeholder": "1536",
+      "help": "Vector dimensions for custom models (required for non-standard models)",
+      "advanced": true
+    },
     "dbPath": {
       "label": "Database Path",
       "placeholder": "~/.openclaw/memory/lancedb",
@@ -45,8 +57,13 @@
             "type": "string"
           },
           "model": {
-            "type": "string",
-            "enum": ["text-embedding-3-small", "text-embedding-3-large"]
+            "type": "string"
+          },
+          "baseUrl": {
+            "type": "string"
+          },
+          "dimensions": {
+            "type": "number"
           }
         },
         "required": ["apiKey"]