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Raw JSON by design. Unmodified upstream responses for maximum data fidelity.

JustOneAPI MCP Server

Use JustOneAPI inside AI assistants via Model Context Protocol (MCP).

This MCP server is a thin transport layer that exposes JustOneAPI endpoints to AI agents and returns the original raw JSON response from upstream platforms.

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What This MCP Does

• Exposes JustOneAPI endpoints as MCP tools
• Handles authentication, retries, timeouts, and error normalization
• Returns raw upstream JSON without field parsing
• Designed for AI agents and developer workflows

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What This MCP Does NOT Do

• No field parsing or schema normalization
• No data restructuring
• No assumptions about upstream response structure

This design is intentional to preserve data fidelity and long-term compatibility.

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Available Tools

This MCP server provides multiple tools to interact with JustOneAPI endpoints. Each tool returns the original raw JSON response from upstream without field parsing.

Featured Tool: Unified Search

unified_search_v1 - Search across multiple Chinese social media and news platforms in one request.

Supports: Weibo, WeChat, Zhihu, Douyin, Xiaohongshu, Bilibili, Kuaishou, and News.

How to use (Natural Language):

Just ask Claude or your MCP host to use the tool with a natural language request:

• "Search for AI discussions on Chinese social media from last week"
• "Find posts about deepseek on Weibo from January 1st to 5th"
• "Search for chatgpt OR 机器学习 on all platforms, exclude 广告"

Claude will automatically:

• Convert your request to the correct API format
• Handle date formatting (UTC+8 timezone)
• Process pagination with nextCursor (just ask "show me more")
• Return and summarize results

Search Syntax:

• Single keyword: deepseek
• AND search: deepseek chatgpt (both must appear)
• OR search: deepseek~chatgpt (either can appear)
• NOT search: deepseek -chatgpt (exclude chatgpt)

Platform Options:
ALL (default), NEWS, WEIBO, WEIXIN, ZHIHU, DOUYIN, XIAOHONGSHU, BILIBILI, KUAISHOU

Technical Parameters (for reference):

{
  "keyword": "AI",
  "source": "ALL",
  "start": "2025-01-01 00:00:00",
  "end": "2025-01-02 23:59:59"
}

Discovering All Available Tools

To see all available tools in your MCP host (Claude Desktop, Cursor, etc.):

In Claude Desktop:

Please list all available tools from justoneapi-mcp

In Cursor or other MCP hosts:
Use your host's tool discovery feature to see all available tools and their parameters.

Each tool includes:

• ✅ Complete parameter descriptions
• ✅ Input validation with Zod schemas
• ✅ Detailed error messages
• ✅ Example values in parameter descriptions

Tool Naming Convention

All tools follow this pattern:

• unified_search_v1 - Unified search across platforms
• kuaishou_search_video_v2 - Platform-specific video search
• {platform}_{action}_{version} - General pattern

Complete Tool Documentation

For detailed documentation of all tools, parameters, and examples, see TOOLS.md.

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Output Contract

This MCP returns raw JSON from upstream APIs.

Example (simplified):

{
  "code": 0,
  "message": null,
  "recordTime": "2025-12-31T14:55:21Z",
  "data": ...
}

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Authentication

You need a JustOneAPI token to use this server.

Get your token: Visit https://justoneapi.com to sign up and obtain your API token.

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Installation

Option 1: npx (Recommended)

Use directly with npx, no installation required.

Configure Claude Desktop:

Edit the configuration file for your operating system:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json
• Linux: ~/.config/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "justoneapi": {
      "command": "npx",
      "args": ["-y", "justoneapi-mcp"],
      "env": {
        "JUSTONEAPI_TOKEN": "your_actual_token_here"
      }
    }
  }
}

💡 Get your token: Sign up at justoneapi.com

Option 2: Global Installation

npm install -g justoneapi-mcp

Configure Claude Desktop:

Edit the configuration file for your operating system:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json
• Linux: ~/.config/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "justoneapi": {
      "command": "justoneapi-mcp",
      "env": {
        "JUSTONEAPI_TOKEN": "your_actual_token_here"
      }
    }
  }
}

💡 Get your token: Sign up at justoneapi.com

Option 3: Local Development

git clone <repository>
cd justoneapi-mcp
npm install
npm run build

Configure Claude Desktop:

Edit the configuration file for your operating system:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json
• Linux: ~/.config/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "justoneapi": {
      "command": "node",
      "args": ["/absolute/path/to/justoneapi-mcp/dist/index.js"],
      "env": {
        "JUSTONEAPI_TOKEN": "your_actual_token_here"
      }
    }
  }
}

💡 Get your token: Sign up at justoneapi.com

That's it! Only the token is required.

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Usage with Other MCP Hosts

This server follows the standard MCP protocol and is compatible with any MCP host (Cursor, Cline, custom agents, etc.).

Generic configuration:

{
  "command": "npx",
  "args": ["-y", "justoneapi-mcp"],
  "env": {
    "JUSTONEAPI_TOKEN": "your_actual_token_here"
  }
}

Or if globally installed:

{
  "command": "justoneapi-mcp",
  "env": {
    "JUSTONEAPI_TOKEN": "your_actual_token_here"
  }
}

💡 Get your token: Sign up at justoneapi.com

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Quick Start

1) Restart Your MCP Host

After configuring, restart Claude Desktop (Cmd + Q) or your MCP host.

2) Test the Connection

In Claude Desktop, ask:

Please list all available tools from justoneapi-mcp

You should see the available tools including unified_search_v1 and kuaishou_search_video_v2.

3) Use the Unified Search

Try searching across multiple platforms:

Use the unified_search_v1 tool to search for "AI" across all platforms within the last month.

Claude will automatically format the request and return results from Weibo, WeChat, Zhihu, Douyin, Xiaohongshu, Bilibili, Kuaishou, and News.

Example conversation:

You: Search for recent discussions about "deepseek" on Chinese social media platforms from the last week.

Claude: I'll search for "deepseek" across multiple platforms using the unified search tool.

[Claude uses unified_search_v1 with appropriate date range and returns aggregated results]

4) Advanced Search Examples

Platform-specific search:

Search for "chatgpt" on Weibo only, from December 1st to January 2nd

Complex search queries:

Search for posts containing "AI" OR "机器学习" but NOT "广告" on Zhihu,
from the last 30 days

Pagination (Getting more results):

When search results have more pages, the response includes a nextCursor field. Simply ask Claude to continue:

Show me the next page of results

or

Get more results from the previous search

or

Continue with the next page

Claude will automatically:

• Extract the nextCursor from the previous response
• Use it to fetch the next page
• Continue until no more results are available

Example conversation with pagination:

You: Search for "AI" on all platforms from January 1-5, 2025

Claude: [Returns first page of results with 10-20 items]

You: Show me more results

Claude: [Uses nextCursor to fetch page 2]

You: Continue

Claude: [Fetches page 3, and so on...]

💡 Note: When using nextCursor for pagination, you don't need to provide start, end, or source again - the cursor already contains this information.

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Error Handling

All errors are normalized into stable MCP error codes with actionable messages.

Error Codes

Error Code	Description	Action
INVALID_TOKEN	Token is invalid or inactive	Update your JUSTONEAPI_TOKEN
COLLECT_FAILED	Data collection failed	Retry after a short delay
RATE_LIMITED	Too many requests	Slow down and retry later
DAILY_QUOTA_EXCEEDED	Daily usage limit reached	Wait until tomorrow or upgrade plan
INSUFFICIENT_BALANCE	Account balance too low	Top up your account
PERMISSION_DENIED	No access to this resource	Contact support
VALIDATION_ERROR	Invalid request parameters	Check input values
INTERNAL_ERROR	Server error	Retry later
NETWORK_TIMEOUT	Request timed out	Check network or retry
NETWORK_ERROR	Network connection failed	Check internet connection
UPSTREAM_ERROR	Unspecified upstream error	Retry or contact support

Error Format

Errors are returned in this format:

ERROR[ERROR_CODE] (upstream=XXX): Human-readable message

Example:

ERROR[RATE_LIMITED] (upstream=302): Rate limit exceeded. Please slow down and retry later.

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Design Philosophy

Transport, not transformation.

This MCP prioritizes stability, transparency, and raw data fidelity over convenience.

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Advanced Configuration (Optional)

By default, the server works with sensible defaults. You only need to set JUSTONEAPI_TOKEN.

However, you can customize behavior with these optional environment variables:

Variable	Default	Description
JUSTONEAPI_TOKEN	(required)	Your JustOneAPI token
JUSTONEAPI_BASE_URL	https://api.justoneapi.com	API endpoint
JUSTONEAPI_TIMEOUT_MS	20000	Request timeout (milliseconds)
JUSTONEAPI_RETRY	1	Number of retries after first attempt
JUSTONEAPI_DEBUG	false	Enable debug logging to stderr

Example with custom settings:

{
  "mcpServers": {
    "justoneapi": {
      "command": "npx",
      "args": ["-y", "justoneapi-mcp"],
      "env": {
        "JUSTONEAPI_TOKEN": "your_token_here",
        "JUSTONEAPI_TIMEOUT_MS": "30000",
        "JUSTONEAPI_DEBUG": "true"
      }
    }
  }
}

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License

MIT