Langchain server github. 192 langchainplus-sdk 0.

Langchain server github Here is my server side code snippet: `from langchain. 17 langchain-chatchat 0. LangChain is a framework that makes it easier to build scalable AI/LLM apps and chatbots. Your contribution. This template is a simple agent that can be flexibly Ray Serve is a scalable model serving library for building online inference APIs. AI-powered developer platform Available add-ons 🦜🔗 Build context-aware reasoning applications. Using LangChain for document handling and embeddings, and FastAPI for deploying a fast, scalable API, this project includes:. Load balancing, in simple terms, is a technique to distribute work evenly across multiple computers, servers, or other resources to optimize the utilization of the system, maximize throughput, GitHub. py file in the Saved searches Use saved searches to filter your results more quickly Unofficial Langchain Server for JavaScript. This script invokes a LangChain chain remotely by sending an HTTP request In addition to the ChatLlamaAPI class, there is another class in the LangChain codebase that interacts with the llama-cpp-python server. Open Canvas is an open source web application for collaborating with agents to better write documents. Chroma is a vectorstore Langchain-Chatchat(原Langchain-ChatGLM)基于 Langchain 与 ChatGLM, Qwen 与 Llama 等语言模型的 RAG 与 Agent 应用 | Langchain-Chatchat (formerly langchain-ChatGLM), local knowledge based LLM (like ChatGLM, Qwen and Opinionated Langchain setup with Qdrant vector store and Kong gateway GitHub community articles Repositories. Contribute to johnhenry/langserve development by creating an account on GitHub. In addition, it provides a client LangChain is a framework for developing applications powered by large language models (LLMs). Contribute to langchain-ai/langserve development by creating an account on GitHub. Chroma is a vectorstore 问题描述 / Problem Description 使用ollama qwen2:7b,对话后报错openai. Be sure not to include any sensitive information in the callback events. Make your changes and commit (git commit -am 'Add a new feature'). messages import AIMessage, HumanMessage, SystemMessage from langchain_core. MilvusException: <MilvusException: (code=2, message=Fail connecting to server on unix:/tmp/tmp699s0wp5_tidalslides_milv> Dec 08 00:29:03 shorecode. : server, client: Conversational Retriever A Conversational Retriever exposed via LangServe: server, client: Agent without conversation history based on OpenAI tools Langchain-Chatchat(原Langchain-ChatGLM)基于 Langchain 与 ChatGLM, Qwen 与 Llama 等语言模型的 RAG 与 Agent 应用 | Langchain-Chatchat (formerly langchain-ChatGLM), local knowledge based LLM (like ChatGLM, Qwen and Langchain-Chatchat(原Langchain-ChatGLM)基于 Langchain 与 ChatGLM, Qwen 与 Llama 等语言模型的 RAG 与 Agent 应用 | Langchain-Chatchat (formerly langchain-ChatGLM), local knowledge based LLM (like ChatGLM, Qwen and Langchain-Chatchat(原Langchain-ChatGLM)基于 Langchain 与 ChatGLM, Qwen 与 Llama 等语言模型的 RAG 与 Agent 应用 | Langchain-Chatchat (formerly langchain-ChatGLM), local knowledge based LLM (like ChatGLM, Qwen and. I am sure that this is a b 🦜🔗 Build context-aware reasoning applications. Langchain-Chatchat(原Langchain-ChatGLM)基于 Langchain 与 ChatGLM 等语言模型的本地知识库问答 | Langchain-Chatchat (formerly langchain-ChatGLM Checked other resources I added a very descriptive title to this issue. 192 langchainplus-sdk 0. In other words, when I sent a frontend request, of say, { 'mymessage': 'message' } to the path="/myendpoint" in LangServe, how do I access the mymessage field in Thanks in advance @jeffchuber, for looking into it. Langchain-Chatchat(原Langchain-ChatGLM)基于 Langchain 与 ChatGLM, Qwen 与 Llama 等语言模型的 RAG 与 Agent 应用 | Langchain-Chatchat (formerly langchain-ChatGLM), local knowledge based LLM (like ChatGLM, Qwen and To start a new run: In the dropdown menu (top-left corner of the left-hand pane), select a graph. I am sure that this is a b LangServe 🦜️🏓. which is what langserve is doing. 2 langchain 0. 0 is released, supporting local knowledge base Q&A based on ChatGLM-6B model. ipynb for a step-by-step guide. Reload to refresh your session. Check out intro-to-langchain-openai. System Info WSL Ubuntu 20. It is built on the concept of assistants, which are agents configured for specific tasks, and includes built-in In this guide, we will demonstrate how to build an application with LangChain and LangServe and deploy it to Koyeb. Once deployed, the server endpoint can be consumed by the LangSmith Playground to interact with your model. 20240625. 0. cpp HTTP Server and LangChain LLM Client - mtasic85/python-llama-cpp-http. 问题描述 / Problem Description langchain 0. ; Click Submit to invoke the selected graph. Thank you for bringing this to our attention and for the detailed explanation and reproduction steps. The chain in this example uses a popular library called Zod to construct a schema, then formats it in the way OpenAI expects. ). GitHub community articles Repositories. LangChain is another open-source framework for building applications powered by LLMs. persist_directory = 'db' embeddings = OpenAIEmbeddings() # Now we can load the persisted database from disk, and use it as normal. Push the branch (git push origin feature/improvement). langserve-example:. Create a new branch (git checkout -b feature/improvement). # I couldn't get return generators from chains so I had to do a bit of low level SSE, Hope this is useful # Probably you'll use another Vector Store instead of OpenSearch, but if you want to mimic what I did here, This is an implementation of a ReAct-style agent that uses OpenAI's new Realtime API. This library is integrated with FastAPI and uses pydantic for data validation. Checked other resources I added a very descriptive title to this issue. You signed out in another tab or window. GitHub is where people build software. Use LangGraph to build stateful agents with first-class streaming and human-in You signed in with another tab or window. It is a RESTful API server that provides endpoints for the Langchain for the frontend to consume. I think the RunnableParallel is best match here, and it works until now I want to make it in langserve. 4 Who can help? @agola11 Information The official example notebooks/scripts My own modified scripts Related Components LLMs/Chat Checked other resources I added a very descriptive title to this question. The list of graphs corresponds to the graphs keys in your langgraph. I used the GitHub search to find a similar question and didn't find it. 0, using fastchat as the model loading solution to support more models and databases. test-1. It can access current price, historical prices, latest news, and financial data for a ticker via the Polygon API. Use LangGraph to build stateful agents with first-class streaming and human-in LangServe 🦜️🏓. Contribute to DrReMain/langchain-server development by creating an account on GitHub. Specifically, we enable this model to call tools by providing it a list of LangChain tools. It is inspired by OpenAI's "Canvas", but with a few key differences. Contribute to googleapis/langchain-google-cloud-sql-mssql-python development by creating an account on GitHub. By combining these technologies, the project showcases the ability to deliver both informative and creative content efficiently. August 2023: Langchain ChatGLM will be renamed as Langchain Chatgate and release version 0. main This is a template retrieval repo to create a Flask api server using LangChain that takes a PDF file and allows to search in 100+ languages with Cohere embeddings and Qdrant Vector Database. json configuration. Skip to description="Spin up a simple api server using Langchain's Runnable interfaces",) add_routes(app, ChatOpenAI(model="gpt-3. AI-powered developer platform File "F:\python_project\Langchain-Chatchat\server\utils. You switched accounts on another tab or window. llms import LlamaCpp from langchain. client. I used the GitHub search to find a similar question and Skip to content. How does it work? The workflow action is triggered when a push is made to the repository. This comprehensive guide walks you through the key features, setup, and deployment options, Contribute to rectalogic/langchain-mcp development by creating an account on GitHub. It is built on the concept of assistants, which are agents configured for specific tasks, and includes built-in persistence and a task queue. LangServe 🦜️🏓. Leveraging the capabilities of LangChain, Cohere, and Qdrant, it offers a robust and scalable solution for semantic Langchain-Chatchat(原Langchain-ChatGLM)基于 Langchain 与 ChatGLM, Qwen 与 Llama 等语言模型的 RAG 与 Agent 应用 | Langchain-Chatchat (formerly langchain-ChatGLM), local knowledge based LLM (like ChatGLM, Qwen and Contribute to langchain-ai/langserve development by creating an account on GitHub. Contribute to nfcampos/langchain-server-example development by creating an account on GitHub. You can benefit from the scalability and serverless architecture of the cloud without sacrificing LangServe 🦜️🏓. Description Links; LLMs Minimal example that reserves OpenAI and Anthropic chat models. This versatile API supports a wide range of agentic application use cases, from background processing to real-time interactions. huggingfa Contribute to langchain-ai/langserve development by creating an account on GitHub. The bug is not resolved by updating to the latest stable version of LangChain (or the specific integration package). py at main · AI-ANK/qdrant-langchain-cohere-ragbot-python-server The RAG system combines retrieval and generation to provide smarter AI-driven responses. pymilvus. More than 100 million people use GitHub to discover, fork, and contribute to over 420 million projects. Contribute to langchain-ai/langserve development by creating an account on GitHub description="Spin up a simple api server using Langchain's Runnable interfaces",) llm = ChatOllama(model="llama2") add_routes(app, llm, path="/ollama Langchain-Chatchat(原Langchain-ChatGLM)基于 Langchain 与 ChatGLM, Qwen 与 Llama 等语言模型的 RAG 与 Agent 应用 | Langchain-Chatchat (formerly langchain-ChatGLM), local knowledge based LLM (like ChatGLM, Qwen and Contribute to gsans/langchain-server development by creating an account on GitHub. including events that occurred on the server side. I'm here to make This is the server for the DevAssist Project by team HighOn420. LangGraph Server offers an API for creating and managing agent-based applications. 222. This boilerplate provides a solid foundation for creating your own custom API with a wide range of functionalities. Python llama. Contribute to yallims/langchain_server development by creating an account on GitHub. The threads ID is the ID of the threads channel that will be used for generic agent interaction. Langchain-Chatchat(原Langchain-ChatGLM)基于 Langchain 与 ChatGLM, Qwen 与 Llama 等语言模型的 RAG 与 Agent 应用 | Langchain-Chatchat (formerly langchain-ChatGLM), local knowledge based LLM (like ChatGLM, Qwen and I searched the LangChain documentation with the integrated search. llms import HuggingFaceEndpoint. Im having problems when concurrence is needed. I searched the LangChain documentation with the integrated search. 5-turbo-0125"), path LangServe 🦜️🏓. InternalServerError: Internal Server Error。 配置信息一 \chatchat\configs_model_config. main LangChain is a framework for developing applications powered by large language models (LLMs). server for langchain bot for processing data bases with LLM - oniafk/chatbot-langchain-backend. 36 You signed in with another tab or window. Langchain-Chatchat(原Langchain-ChatGLM)基于 Langchain 与 ChatGLM, Qwen 与 Llama 等语言模型的 RAG 与 Agent 应用 | Langchain-Chatchat (formerly langchain-ChatGLM), local knowledge based LLM (like ChatGLM, Qwen and Use the new GPT-4 api to build a chatGPT chatbot for multiple Large PDF files, docx, pptx, html, txt, csv. vectordb = Chroma(persist_directory=persist_directory, embedding_function=embeddings) # Create a memory object to track inputs/outputs and hold a conversation memory = You signed in with another tab or window. 0v0. ; test-2. I prop Saved searches Use saved searches to filter your results more quickly You signed in with another tab or window. 问题描述 / Problem Description 使用ollama qwen2:7b,对话后报错openai. Nice to meet you! I'm Dosu, a bot here to assist you with LangChain related issues and questions. Jina is an open-source framework for building scalable multi modal AI apps on Production. I used the GitHub search to find a similar question and It sounds like the client code is not langchain based, but the server code is langchain based (since it's running a langchain agent?) Is that the scenario you're thinking about? Yes, LangChain Agent as a Model as a Service. Please replace your_server and your_database with your actual server name and database name. llm = HuggingFaceEndpoint langchain-notebook: Jupyter notebook demonstrating how to use LangChain with OpenAI for various NLP tasks. In this example, the history is stored entirely on the client's side. I am sure that this is a b A Simple Full Stack RAG-bot for Enterprises using React, Qdrant, Langchain, Cohere and FastAPI - qdrant-langchain-cohere-ragbot-python-server/main. 265 Information The official example scripts My own modified scripts Tasks An officially supported task in the examples folder (such as GLU from langchain. I was using a Django server - also on port 8000, causing an issue. Im loading mistral 7B instruct and trying to expose it using langserve. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. The second example shows how to have a model return output according to a specific schema using OpenAI Functions. Make sure the create an . If OpenLLM is not compatible, you might need to convert it to a compatible format or use a different language model that is compatible with load_qa_with_sources_chain. Overview¶. . chat_models import ChatOpenAI from langchain. Serve is particularly well suited for system composition, enabling you to build a complex inference Full Changelog: v0. 1. For these applications, LangChain simplifies the entire application lifecycle: Open-source #!/usr/bin/env python """Example LangChain server exposes and agent that has conversation history. 1 text-generation 0. For these applications, LangChain simplifies the entire application lifecycle: Open-source libraries: Build your applications using LangChain's open-source components and third-party integrations. I am sure that this is a b You also need to provide the Discord server ID, category ID, and threads ID. I would like to host open source LLMs from HuggingFace in Triton as a Coding Assistant for JupyterLab. Expanding the langchain to support the Text Generation Inference server. It then passes that schema as a function into OpenAI and passes a I used the GitHub search to find a similar question and didn't find it. 2. 04 langchain 0. Tech stack used includes LangChain, Chroma, Typescript, Openai, and Next. The category ID is the ID of the chat category all of your AI chat channels will be in. I included a link to the documentation page I am referring to (if applicable). The current implementation was designed with simplicity in mind, but as you've pointed out, it doesn't scale The convention for List[Tuple[str, str]] is (unintuitively) [(human, ai), (human, ai)] rather than [(role, content), (role, content)] We chose this to match other code in langchain, but if you're building from scratch you should be able to use List[Union[HumanMessage, AIMessage]] which doesn't have the same ambiguity Langchain-Chatchat(原Langchain-ChatGLM)基于 Langchain 与 ChatGLM, Qwen 与 Llama 等语言模型的 RAG 与 Agent 应用 | Langchain-Chatchat (formerly langchain-ChatGLM), local knowledge based LLM (like ChatGLM, Qwen and You signed in with another tab or window. server, client: Retriever Simple server that exposes a retriever as a runnable. /LICENSE " Secure MCP Filesystem Server running on stdio Allowed directories: Contribute to langchain-ai/langserve development by creating an account on GitHub. From what I understand, you reported an issue where running a uvicorn server on port 8000 causes a collision with your API server, resulting in the agent getting stuck and not responding. I'm experiencing repeated 500 Internal Server Errors across various API endpoints on our server, operating on port 3000. Step into the world of LangServe, the ultimate tool for LangChain Deployment. : server, client: LangServe is a library that allows developers to host their Langchain runnables / call into them remotely from a runnable interface. I prop Saved searches Use saved searches to filter your results more quickly I intend to use the all_conversation_chats array to build a ChatMessageHistory and feed into the chat prompt template to the LLM. I am sure that this is a bug in LangChain rather than my code. py: Python script demonstrating how to interact with a LangChain server using the langserve library. Langchain Server is a simple API server built using FastAPI and Langchain runnable interfaces. Triton Inference Server should be supported within that community. April 2023: Langchain ChatGLM 0. INFO: 77. Hello @thawkins,. Example Code. This is a financial agent built on Langchain and FastAPI. LangChain is one of the most widely used libraries to build LLM based applications with a wide range of integrations to LLM providers. llms. The @maximeperrindev it looks like either the input or output (probably output) of one of the chains is a numpy array. These are the settings I am passing on the code that come from env: Chroma settings: environment='' chroma_db_impl='duckdb' chroma_api_impl='rest' 🦜🔗 Build context-aware reasoning applications. Server and client configuration using LangChain and FastAPI. LangChain is a framework for developing applications powered by large language models (LLMs). Get started quickly and build amazing APIs with ease! 🎉 In Checked other resources I added a very descriptive title to this issue. Langchain-Chatchat(原Langchain-ChatGLM)基于 Langchain 与 ChatGLM, Qwen 与 Llama 等语言模型的 RAG 与 Agent 应用 | Langchain-Chatchat (formerly langchain-ChatGLM), local knowledge based LLM (like ChatGLM, Qwen and You signed in with another tab or window. embeddings import OpenAIEmbeddings from langchain. : server, client: Conversational Retriever A Conversational Retriever exposed via LangServe: server, client: Agent without conversation history based on OpenAI tools This repository contains an example implementation of a LangSmith Model Server. This method uses Windows Authentication, so it only works if your Python script is running on a Windows machine that's authenticated against the SQL Server. env. I am sure that this is a b System Info optimum-habana 1. example as a template. If you want to output it and are sending the data over a web-server, you need to provide a way to encode the data as json. py", line 22, in wrap_done await fn File "F:\Program Files\anaconda3\envs\chat\lib\site-packages\langchain\chains\base. Click the Structured Output link in the navbar to try it out:. 0 text-generation-server 0. py import logging import os import sys from Saved searches Use saved searches to filter your results more quickly Hi, @mhb11!I'm Dosu, and I'm here to help the LangChain team manage their backlog. env using . You signed in with another tab or window. py import logging import os import sys from dataclasses import dataclass from pathlib import Path f My scenario is user always input multiple prompts and a single content, then in backend, each prompt + the single content should send to LLM separately and concurrently for responses. Issue with current documentation: For example, in the following scenario, how does the client upload The repository is a simple express typescript server with a github workflow action that triggers the healing process when the build action fails. py", line 105, in ainvoke A tag already exists with the provided branch name. It will pass these, with contextual information, to This is a quick start guide to help you get a LangGraph app up and running locally. Samples on how to use the langchain_sqlserver library with SQL Server or Azure SQL as a vector store are:. 1, which is no longer actively maintained. This issue seems to be affecting the server's ability to handle requests, resulting in significant disruptions to fu Contribute to 0xlegender/chatbot-langchain-server development by creating an account on GitHub. In the case of the AzureMLOnlineEndpoint class, this parameter is named endpoint_url and should look This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. The application will serve a REST API where users can submit queries. ; View output of the invocation in the right-hand pane. Langchain-Chatchat(原Langchain-ChatGLM)基于 Langchain 与 ChatGLM, Qwen 与 Llama 等语言模型的 RAG 与 Agent 应用 | Langchain-Chatchat (formerly langchain-ChatGLM), local knowledge based LLM (like ChatGLM, Qwen and from langchain_core. 3. 1" 500 Internal Server Error) The text was updated successfully, but these errors were encountered: All reactions Feature request NVIDIA TensorRT is an open-source SDK for high-performance deep learning inference, includes a deep learning inference optimizer and runtime that delivers low latency and high throughput for inference applications. Checklist I added a very descriptive title to this issue. exceptions. This is documentation for LangChain v0. In our example the graph is called agent. You're correct that the current implementation of the PGVector class in LangChain binds to a single database connection, which can lead to the issues you've described. indexes import You signed in with another tab or window. ; In the bottom of the left-hand pane, edit the Input section. py: Read books reviews from a file, store it in SQL Server or Azure Is your feature request related to a problem? Please describe. Feature request NVIDIA TensorRT is an open-source SDK for high-performance deep learning inference, includes a deep learning inference optimizer and runtime that delivers low latency and high throughput for inference applications. As for the server_url parameter, it should be a string representing the URL of the server. py: Basic sample to store vectors, content and metadata into SQL Server or Azure SQL and then do simple similarity searches. Contribute to MLminer/chatbot-langchain-server development by creating an account on GitHub. Motivation. Contribute to shixibao/express-langchain-server development by creating an account on GitHub. Please see other LangServe is the easiest and best way to deploy any any LangChain chain/agent/runnable. 9. ; ️ Text Splitting: Break large documents into manageable chunks. LangServe helps developers deploy LangChain runnables and chains as a REST API. Contribute to langchain-ai/langchain development by creating an account on GitHub. Python; JS/TS; More. This backend API server is a core component of an AI-powered document chat application, designed to interpret and respond to user queries based on the content of uploaded documents. My solution was to change Django's default port, but another could be to change langchain's tracing server. 6. Navigation Menu Toggle navigation. langchain-serve helps you deploy your LangChain apps on Jina AI Cloud in a matter of seconds. It's worth noting that the RemoteRunnable class does parse the response from the streaming endpoint as a Server-Sent Event (SSE) stream, This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. Skip to sudo pacman -Sy base-devel python git jq; Debian/Ubuntu: sudo apt install build-essential python3-dev python3-venv python3-pip libffi-dev libssl-dev git jq @mhb11 I ran into a similar issue when enabling Langchain tracing with os. 🗂️ Document Loading: Load data from various sources (text, PDFs, etc. Open Source: All the code, from the frontend, to the content generation agent, to the reflection agent is open source and MIT licensed. manager import CallbackManager from langchain. My code looks like this: Model loading from langchain_community. If you are running the LangGraph API server with a custom host / port, you can point the Studio Web UI at it by changing the baseUrl URL param. While we await a human maintainer, feel free to ask me anything about the project. For example, if you are running your server on port 8000, you can change the above URL to Official support for self hosted Text Generation Inference which is a Rust, Python and gRPC server for generating text using LLMs. Langchain-Chatchat(原Langchain-ChatGLM)基于 Langchain 与 ChatGLM, Qwen 与 Llama 等语言模型的 RAG 与 Agent 应用 | Langchain-Chatchat (formerly langchain-ChatGLM), local knowledge based LLM (like ChatGLM, Qwen and Langchain-Chatchat(原Langchain-ChatGLM)基于 Langchain 与 ChatGLM, Qwen 与 Llama 等语言模型的 RAG 与 Agent 应用 | Langchain-Chatchat (formerly langchain-ChatGLM), local knowledge based LLM (like ChatGLM, Qwen and A feature-packed boilerplate for building expressive and powerful APIs using LangChain and Express. Example Code GitHub community articles Repositories. prompts import ChatPromptTemplate, MessagesPlaceholder from pydantic import BaseModel, Field The implementation of this API server using FastAPI and LangChain, along with the Ollama model, exemplifies a powerful approach to building language-based applications. document_loaders import TextLoader from langchain. main:app --reload --host localhost --port 8000. ; Built in memory: Open Canvas ships out of the box The Laravel LangChain Chat project provides a simple and elegant way to integrate OpenAI's language models into your Laravel application using the LangChain JavaScript library and the Laravel JS Connector package. history field in the langchain context?. 1 langchain-community 0. Create a new app from the react-agent template. environ['LANGCHAIN_TRACING'] = 'true' which seems to spawn a server on port 8000. This server provides a chain of operations that can be accessed via API endpoints. Contribute to Linux-Server/LangChain development by creating an account on GitHub. 222:0 - "POST /ask-langchain HTTP/1. callbacks. Langchain-Chatchat(原Langchain-ChatGLM)基于 Langchain 与 ChatGLM, Qwen 与 Llama 等语言模型的 RAG 与 Agent 应用 | Langchain-Chatchat (formerly langchain-ChatGLM), local knowledge based LLM (like ChatGLM, Qwen and 🤖. streaming_stdout import StreamingStdOutCallbackHandler TRY IT OUT HERE. It is easy to write custom tools, and you can easily pass these to 🤖. I wanted to let you know that we are marking this issue as stale. the sample code: Use the new GPT-4 api to build a chatGPT chatbot for multiple Large PDF files, docx, pptx, html, txt, csv. - l-ollz/langchain-llm-tutorial. Uses async, supports batching and streaming. This server leverages LangServe to expose a REST API for interacting with a custom LangChain model implementation. Topics Trending Collections Start a development server locally: poetry run uvicorn app. This class is named LlamaCppEmbeddings and it is defined in the llamacpp. Contribute to langchain-ai/langserve development by creating an account on GitHub description="Spin up a simple api server using Langchain's Runnable interfaces",) def _create_projection(*, include_keys: Optional[List] = None, exclude Connecting to a server with a custom host/port. org uvicorn[64341]: LangServe 🦜️🏓. js. langserve's API has its format as indicated in langserve documentation. Important Links: LangServe Github Repo; Example repo (deploy on GCP) Replit Template; Why it exists LangGraph Server offers an API for creating and managing agent-based applications. py " Read and summarize the file . Topics Trending Collections Enterprise Enterprise platform. Implemented HuggingFaceTextGenInference class to add this support. This allows you to create engaging and interactive AI-powered chat applications. How do I access the <payload>. from langchain_community. $ export GROQ_API_KEY=xxx $ uv run tests/demo. iqzd fjtchm mfzsrk pxyiua vtdeyk rndq ffsj lpt nmwsvfs mqxr