Bring Fastgpt
to LangChain
Create your Vinkius account to connect FastGPT to LangChain and start using all 12 AI tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code. No hosting, no server setup — just connect and start using.
GDPR Free for SubscribersCompatible with every major AI agent and IDE
Gemini
What is the FastGPT MCP Server?
Connect your AI workflows to FastGPT, the powerful open-source platform for building knowledge-based AI applications. This MCP provides 12 tools for full lifecycle management of datasets, apps, and RAG (Retrieval-Augmented Generation) pipelines.
What you can do
- Dataset Orchestration — Create, list, and manage knowledge base datasets with granular control over configurations
- Document Ingestion — Push text content or chunks directly to datasets for automatic indexing and vectorization
- Semantic Search — Run advanced semantic queries against your knowledge bases to test relevance and RAG quality
- Application Management — List and inspect AI applications to monitor their configurations and linked datasets
- OpenAI-Compatible Chat — Trigger RAG-powered chat completions with full context, session tracking, and intermediate step visibility
How it works
- Subscribe to this server
- Set up FastGPT (cloud or self-hosted)
- Navigate to your App settings and enter the API Access section
- Generate an API Key
- Identify your Base URL (e.g.,
https://api.fastgpt.infor cloud) - Insert both into the fields below to start managing your RAG pipelines.
Who is this for?
- Knowledge Engineers — automate the ingestion of documentation across multiple datasets
- RAG Developers — debug semantic search results and optimize chunking strategies programmatically
- System Integrators — build complex AI workflows that require dynamic knowledge base management
Built-in capabilities (12)
Supports chatId for context tracking, streaming, and detailed intermediate steps. Send a message to a FastGPT application
Create a new dataset (knowledge base)
Delete specific data from a dataset
Get details for a specific AI application
Get details for a specific dataset
Useful for semantic search outside of FastGPT. Generate text embeddings
List AI applications
List data items in a dataset
Can filter by parentId or search keyword. List knowledge base datasets
Add or update data in a dataset
Perform semantic search on a dataset
Update existing data in a dataset
Why LangChain?
LangChain's ecosystem of 500+ components combines seamlessly with FastGPT through native MCP adapters. Connect 12 tools via Vinkius and use ReAct agents, Plan-and-Execute strategies, or custom agent architectures. with LangSmith tracing giving full visibility into every tool call, latency, and token cost.
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The largest ecosystem of integrations, chains, and agents. combine FastGPT MCP tools with 500+ LangChain components
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Agent architecture supports ReAct, Plan-and-Execute, and custom strategies with full MCP tool access at every step
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LangSmith tracing gives you complete visibility into tool calls, latencies, and token usage for production debugging
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Memory and conversation persistence let agents maintain context across FastGPT queries for multi-turn workflows
FastGPT in LangChain
Why run FastGPT with Vinkius?
The FastGPT connection runs on our fully managed, secure cloud infrastructure. We handle the hosting, maintenance, and security so you don't have to deal with servers or code. All 12 tools are ready to work instantly without any complex setup.
You stay in complete control of your data. Your AI only accesses the information you approve, keeping your sensitive passwords and private details completely safe. Plus, with automatic optimizations, your AI works faster and more efficiently.
* Every connection is hosted and maintained by Vinkius. We handle the security, updates, and infrastructure so you don't have to write code or manage servers. See our infrastructure
Over 4,000 integrations ready for AI agents
Explore a vast library of pre-built integrations, optimized and ready to deploy.
Connect securely in under 30 seconds
Generate tokens to authenticate and link external services in a single step.
Complete visibility into every agent action
Audit live requests, latency, success rates, and active security compliance policies.
Optimize spending and track token ROI
Analyze real-time token consumption and cost metrics detailed by connection.
Explore our live AI Agents Analytics dashboard to see it all working
This dashboard is included when you connect FastGPT using Vinkius. You will never be left in the dark about what your AI agents are doing with your tools.
FastGPT and 4,000+ other AI tools. No hosting, no code, ready to use.
Professionals who connect FastGPT to LangChain through Vinkius don't need to write code, manage servers, or worry about security. Everything is pre-configured, secure, and runs automatically in the background.
Raw MCP | Vinkius | |
|---|---|---|
| Ready-to-use MCPs | Find and configure each manually | 4,000+ MCPs ready to use |
| Connection Setup | Manual coding & server setup | 1-click instant connection |
| Server Hosting | You host it yourself (needs 24/7 uptime) | 100% hosted & managed by Vinkius |
| Security & Privacy | Stored in plaintext config files | Bank-grade encrypted vault |
| Activity Visibility | Blind execution (no logs or tracking) | Live dashboard with real-time logs |
| Cost Control | Runaway AI token spend risk | Automatic budget limits |
| Revoking Access | Must delete files or code to stop | 1-click disconnect button |
How Vinkius secures
FastGPT for LangChain
Every request between LangChain and FastGPT is protected by our secure gateway. We automatically keep your sensitive data private, prevent unauthorized access, and let you disconnect instantly at any time.
Frequently asked questions
Can I use this with my self-hosted FastGPT instance?
Yes! Simply provide your custom domain in the Base URL field (e.g., https://fastgpt.mycompany.com). The MCP will route all requests to your specific instance.
How do I add new data to an existing dataset?
Use the push_dataset_data tool. You can send a JSON array of objects containing the text content to be indexed. FastGPT will handle the chunking and embedding automatically.
What is the 'goods_sign' used for in Pinduoduo tools?
Wait, this is the FastGPT FAQ. For FastGPT, you mostly need Dataset IDs and App IDs. The 'goods_sign' is specific to the Pinduoduo MCP. Always check you are using the correct tools for the specific platform.
How does LangChain connect to MCP servers?
Use langchain-mcp-adapters to create an MCP client. LangChain discovers all tools and wraps them as native LangChain tools compatible with any agent type.
Which LangChain agent types work with MCP?
All agent types including ReAct, OpenAI Functions, and custom agents work with MCP tools. The tools appear as standard LangChain tools after the adapter wraps them.
Can I trace MCP tool calls in LangSmith?
Yes. All MCP tool invocations appear as traced steps in LangSmith, showing input parameters, response payloads, latency, and token usage.
MultiServerMCPClient not found
Install: pip install langchain-mcp-adapters
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