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MCP

Plaza MCP Services

The Bailian MCP Plaza provides Plaza MCP services in two modes: One Key MCP (no activation needed, direct API Key authentication) and MCP services that require manual activation. These services are visible to all users and can be integrated directly within the platform (e.g., Agents or Workflows), or externally invoked and integrated into third-party applications or projects.

The Bailian MCP Plaza offers two types of services, visible to all users:
  • One Key MCP: No manual activation required. Authenticate directly with your Bailian API Key. Services marked with the One Key badge in the Plaza belong to this category.
  • Plaza MCP (Activation Required): Requires manual activation in the MCP Plaza before use. Some services may require a third-party provider's API Key.
Alibaba Cloud Bailian implements security policies to safeguard data processed by cloud-deployed MCP Servers. For sensitive data, the cloud-deployed MCP Server automatically encrypts and manages it using Key Management Service (KMS) upon creation.

One Key MCP

One Key MCP services require no manual activation—they take effect on first invocation. Below is an example using the Amap Maps MCP service:
1

Access the MCP Plaza

Navigate to the Alibaba Cloud Bailian MCP Plaza and browse for MCP services with the One Key badge.
2

Get Integration Configuration

On the service detail page under Integration, copy the configuration or click the one-click configuration button for your client. Use your Bailian API Key (DASHSCOPE_API_KEY) for authentication—no separate key is needed for this service.
3

Start Invoking

Once configured, you can start invoking immediately. First invocation activates the service automatically. If the service includes a free quota, it will be activated automatically.

Plaza MCP (Activation Required)

For Plaza MCP services not marked with the One Key badge, manual activation is required before use:
1

Access the MCP Plaza

Navigate to the Alibaba Cloud Bailian MCP Plaza and click the target MCP service card.
2

Enable the Service

Click Enable Now, then confirm in the pop-up dialog by clicking Confirm Enable. If a third-party API Key is required, complete the configuration as prompted.

Configure MCP Services in Agents or Workflows

Agent Applications

In agent applications, the large language model determines whether to invoke an MCP service based on user input.
1

Create an Agent

Go to Alibaba Cloud Bailian’s Application Management, click Create Application, select Agent Application > Agent 2.0, enter an Application Name, and click Create Now.
2

Add an MCP Service

Click the + icon next to Skills > MCP, and add Amap Maps.
3

Test the MCP Service

Agents automatically invoke appropriate MCP services to resolve user requests. Below are several example use cases:Route Planning (Single MCP Service)Ensure that the Amap Maps MCP service has been added to assist the agent with geographic information retrieval.In the right-side chat panel, send a test message: "I’m departing now from Hangzhou Xiaoshan International Airport to West Lake Scenic Area in Hangzhou. Please provide three public transportation options."
The agent will invoke the MCP service multiple times to compute routes and estimate travel time.
Step-by-Step Reasoning (Single MCP Service)Ensure that the Sequential Thinking MCP service has been added to support logical reasoning tasks.In the right-side chat panel, send a test message: "Please solve this 'chickens-and-rabbits-in-the-same-cage' problem: There are 12 heads and 32 legs in total. How many chickens and rabbits are there?"Temperature Trend Visualization (Multiple MCP Services)Ensure both the Amap Maps and AntV Charting MCP services have been added.In the right-side chat panel, send a test message: "Plot a line chart showing the temperature trend for Hangzhou over the next few days."

Workflow Applications

An MCP service may expose multiple tools, but each MCP node in a workflow can only use one tool. Therefore, you must manually specify the input parameters for the MCP node and pass its output to the next node. Use the maps_weather tool from the Amap Maps MCP service to quickly build a city weather query workflow.
When using only the maps_weather tool, the workflow cannot answer questions unrelated to weather queries.
1

Create a Workflow

Go to Alibaba Cloud Bailian’s Application Management, click Create Application, select Workflow Application, enter an Application Name, and click Create Now.
2

Extract City Name

Drag a Large Language Model (LLM) node from the left toolbar, name it “Information Extraction”. Connect it to the Start node and configure it to use the Qwen-Plus-Latest model. In its prompt, describe the functionality, inputs, and outputs of the maps_weather tool.
Before using an MCP node, natural-language input typically needs to be converted into structured parameters acceptable by the MCP node. Thus, clearly describing the MCP service’s capabilities and I/O format in the prompt helps constrain the LLM’s output structure.
3

Query Weather Information

Drag an MCP node from the left toolbar, select the maps_weather tool, name it “Weather Query Tool”, and connect it to the “Information Extraction” node. Click the configuration button inside the MCP node for maps_weather, and set its input to “Reference: Information Extraction/result”.
4

Summarize Weather Information

Drag another LLM node from the left toolbar, name it “Information Summary”, and connect it to the “Weather Query Tool” node. Configure its prompt as: “You are an information processing assistant whose task is to synthesize user-provided data into fluent natural language.”
5

Output Query Results

Connect the “Information Summary” node to the End node, and configure its input as “Information Summary/result”.
6

Test the Workflow

Click the Test button in the top-right corner, enter "Query Hangzhou’s weather", and review the workflow’s output.

External Invocation of MCP Services

Alibaba Cloud Bailian supports integrating MCP services into third-party applications or projects via external invocation. For details, refer to External Invocation.