From 1af95a8c5cbab2041288ea9f91282e6b7486b61b Mon Sep 17 00:00:00 2001
From: Dushyant Acharya <dushyantacharya873@gmail.com>
Date: Sat, 23 May 2026 10:28:59 +0530
Subject: [PATCH 1/3] feat: support LM Studio embeddings

Adds support for LM Studio embeddings by wrapping the OpenAIEmbeddings provider with defaults tailored for local LM Studio instances.

Resolves FlowiseAI/Flowise#1277
---
 .../credentials/LMStudioApi.credential.ts     |  24 ++++++
 .../LMStudioEmbedding/LMStudioEmbedding.ts    |  71 ++++++++++++++++++
 .../embeddings/LMStudioEmbedding/lmstudio.png | Bin 0 -> 3171 bytes
 3 files changed, 95 insertions(+)
 create mode 100644 packages/components/credentials/LMStudioApi.credential.ts
 create mode 100644 packages/components/nodes/embeddings/LMStudioEmbedding/LMStudioEmbedding.ts
 create mode 100644 packages/components/nodes/embeddings/LMStudioEmbedding/lmstudio.png

diff --git a/packages/components/credentials/LMStudioApi.credential.ts b/packages/components/credentials/LMStudioApi.credential.ts
new file mode 100644
index 00000000000..4ef4677f211
--- /dev/null
+++ b/packages/components/credentials/LMStudioApi.credential.ts
@@ -0,0 +1,24 @@
+import { INodeParams, INodeCredential } from '../src/Interface'
+
+class LMStudioApi implements INodeCredential {
+    label: string
+    name: string
+    version: number
+    inputs: INodeParams[]
+
+    constructor() {
+        this.label = 'LM Studio API'
+        this.name = 'lmstudioApi'
+        this.version = 1.0
+        this.inputs = [
+            {
+                label: 'LM Studio Api Key',
+                name: 'lmstudioApiKey',
+                type: 'password',
+                description: 'Optional. Most local LM Studio instances do not require an API key.'
+            }
+        ]
+    }
+}
+
+module.exports = { credClass: LMStudioApi }
diff --git a/packages/components/nodes/embeddings/LMStudioEmbedding/LMStudioEmbedding.ts b/packages/components/nodes/embeddings/LMStudioEmbedding/LMStudioEmbedding.ts
new file mode 100644
index 00000000000..8bd8f8f3f54
--- /dev/null
+++ b/packages/components/nodes/embeddings/LMStudioEmbedding/LMStudioEmbedding.ts
@@ -0,0 +1,71 @@
+import { ClientOptions, OpenAIEmbeddings, OpenAIEmbeddingsParams } from '@langchain/openai'
+import { ICommonObject, INode, INodeData, INodeParams } from '../../../src/Interface'
+import { getCredentialData, getCredentialParam } from '../../../src/utils'
+
+class LMStudioEmbedding_Embeddings implements INode {
+    label: string
+    name: string
+    version: number
+    type: string
+    icon: string
+    category: string
+    description: string
+    baseClasses: string[]
+    credential: INodeParams
+    inputs: INodeParams[]
+
+    constructor() {
+        this.label = 'LM Studio Embedding'
+        this.name = 'lmStudioEmbeddings'
+        this.version = 1.0
+        this.type = 'LM Studio Embeddings'
+        this.icon = 'lmstudio.png'
+        this.category = 'Embeddings'
+        this.description = 'Use LM Studio local embeddings models'
+        this.baseClasses = [this.type, 'Embeddings']
+        this.credential = {
+            label: 'Connect Credential',
+            name: 'credential',
+            type: 'credential',
+            credentialNames: ['lmstudioApi'],
+            optional: true
+        }
+        this.inputs = [
+            {
+                label: 'Base Path',
+                name: 'basePath',
+                type: 'string',
+                default: 'http://localhost:1234/v1'
+            },
+            {
+                label: 'Model Name',
+                name: 'modelName',
+                type: 'string',
+                placeholder: 'nomic-embed-text-v1.5'
+            }
+        ]
+    }
+
+    async init(nodeData: INodeData, _: string, options: ICommonObject): Promise<any> {
+        const modelName = nodeData.inputs?.modelName as string
+        const basePath = nodeData.inputs?.basePath as string
+
+        const credentialData = await getCredentialData(nodeData.credential ?? '', options)
+        const lmstudioApiKey = getCredentialParam('lmstudioApiKey', credentialData, nodeData)
+
+        const obj: Partial<OpenAIEmbeddingsParams> & { openAIApiKey?: string; configuration?: ClientOptions } = {
+            modelName,
+            openAIApiKey: 'not-needed' // LM Studio typically doesn't require an API key
+        }
+
+        if (lmstudioApiKey) obj.openAIApiKey = lmstudioApiKey
+
+        if (basePath) obj.configuration = { baseURL: basePath }
+
+        const model = new OpenAIEmbeddings(obj)
+
+        return model
+    }
+}
+
+module.exports = { nodeClass: LMStudioEmbedding_Embeddings }
diff --git a/packages/components/nodes/embeddings/LMStudioEmbedding/lmstudio.png b/packages/components/nodes/embeddings/LMStudioEmbedding/lmstudio.png
new file mode 100644
index 0000000000000000000000000000000000000000..c2a7c102ca02d24183147217d65e111ac9a4a550
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From f7022fba6922f3410ad1325a3ca579e148749f82 Mon Sep 17 00:00:00 2001
From: Dushyant Acharya <dushyantacharya873@gmail.com>
Date: Sat, 23 May 2026 10:33:19 +0530
Subject: [PATCH 2/3] fix: apply code review suggestions

- Add validation to ensure modelName and basePath are provided to prevent unexpected fallbacks to production OpenAI APIs.
- Simplify OpenAIEmbeddingsParams typing intersection.
---
 .../nodes/embeddings/LMStudioEmbedding/LMStudioEmbedding.ts   | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/packages/components/nodes/embeddings/LMStudioEmbedding/LMStudioEmbedding.ts b/packages/components/nodes/embeddings/LMStudioEmbedding/LMStudioEmbedding.ts
index 8bd8f8f3f54..8de75901b87 100644
--- a/packages/components/nodes/embeddings/LMStudioEmbedding/LMStudioEmbedding.ts
+++ b/packages/components/nodes/embeddings/LMStudioEmbedding/LMStudioEmbedding.ts
@@ -48,12 +48,14 @@ class LMStudioEmbedding_Embeddings implements INode {
 
     async init(nodeData: INodeData, _: string, options: ICommonObject): Promise<any> {
         const modelName = nodeData.inputs?.modelName as string
+        if (!modelName) throw new Error('Model Name is required for LM Studio Embeddings')
         const basePath = nodeData.inputs?.basePath as string
+        if (!basePath) throw new Error('Base Path is required for LM Studio Embeddings')
 
         const credentialData = await getCredentialData(nodeData.credential ?? '', options)
         const lmstudioApiKey = getCredentialParam('lmstudioApiKey', credentialData, nodeData)
 
-        const obj: Partial<OpenAIEmbeddingsParams> & { openAIApiKey?: string; configuration?: ClientOptions } = {
+        const obj: OpenAIEmbeddingsParams = {
             modelName,
             openAIApiKey: 'not-needed' // LM Studio typically doesn't require an API key
         }

From 9778a98f227c8ab56f9e30b0d2c88f941b8e2552 Mon Sep 17 00:00:00 2001
From: Dushyant Acharya <dushyantacharya873@gmail.com>
Date: Sat, 23 May 2026 10:50:26 +0530
Subject: [PATCH 3/3] refactor: apply second round of code review suggestions

- Ensure versioning consistency by using integers instead of floats
- Simplify OpenAIEmebeddingsParams initialization by using inline apiKey and configuration
---
 .../components/credentials/LMStudioApi.credential.ts     | 2 +-
 .../embeddings/LMStudioEmbedding/LMStudioEmbedding.ts    | 9 +++------
 2 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/packages/components/credentials/LMStudioApi.credential.ts b/packages/components/credentials/LMStudioApi.credential.ts
index 4ef4677f211..960a2e8dc7a 100644
--- a/packages/components/credentials/LMStudioApi.credential.ts
+++ b/packages/components/credentials/LMStudioApi.credential.ts
@@ -9,7 +9,7 @@ class LMStudioApi implements INodeCredential {
     constructor() {
         this.label = 'LM Studio API'
         this.name = 'lmstudioApi'
-        this.version = 1.0
+        this.version = 1
         this.inputs = [
             {
                 label: 'LM Studio Api Key',
diff --git a/packages/components/nodes/embeddings/LMStudioEmbedding/LMStudioEmbedding.ts b/packages/components/nodes/embeddings/LMStudioEmbedding/LMStudioEmbedding.ts
index 8de75901b87..dbdd648b2c5 100644
--- a/packages/components/nodes/embeddings/LMStudioEmbedding/LMStudioEmbedding.ts
+++ b/packages/components/nodes/embeddings/LMStudioEmbedding/LMStudioEmbedding.ts
@@ -17,7 +17,7 @@ class LMStudioEmbedding_Embeddings implements INode {
     constructor() {
         this.label = 'LM Studio Embedding'
         this.name = 'lmStudioEmbeddings'
-        this.version = 1.0
+        this.version = 1
         this.type = 'LM Studio Embeddings'
         this.icon = 'lmstudio.png'
         this.category = 'Embeddings'
@@ -57,13 +57,10 @@ class LMStudioEmbedding_Embeddings implements INode {
 
         const obj: OpenAIEmbeddingsParams = {
             modelName,
-            openAIApiKey: 'not-needed' // LM Studio typically doesn't require an API key
+            apiKey: lmstudioApiKey,
+            configuration: { baseURL: basePath }
         }
 
-        if (lmstudioApiKey) obj.openAIApiKey = lmstudioApiKey
-
-        if (basePath) obj.configuration = { baseURL: basePath }
-
         const model = new OpenAIEmbeddings(obj)
 
         return model