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realagent-mcp

v0.4.0

Published

RealAgent MCP Server — 国信智能体实名关联服务

Readme

realagent-mcp

国信智能体实名关联服务 MCP Server — 单个可执行文件 · 本地通信 · 国密加密 · 全平台支持。

为 AI Agent 提供 SM2 实名身份关联、SD-JWT 可验证证明(VP)生成与验证、SM2 密码学操作等能力。

安装

npm i -g realagent-mcp

必须全局安装(-g)。这样 realagent-mcp 会进入 PATH,MCP 配置里的 npx realagent-mcp 才会命中全局副本,而不会每次都往 _npx 缓存里再拉一份 (即避免依赖重复与 npx 旧缓存问题)。

配置 MCP Client(--agent-id 必填,每个 Agent 使用唯一名称):

{
  "mcpServers": {
    "realagent-mcp": {
      "command": "npx",
      "args": ["-y", "realagent-mcp", "stdio", "--agent-id", "my-agent"]
    }
  }
}

升级

npm update -g realagent-mcp
# 或
npm i -g realagent-mcp@latest

升级后重启 MCP Client 即可。Agent 会在每次对话开始时自动调用 system_update 检查新版本。

功能

  • SM2 密钥对生成 — 国密 SM2 签名/验签/加解密
  • 实名关联 — 生成二维码 → 扫码认证 → 自动领取 VC
  • VP 生成/验证 — SD-JWT 可验证证明,W3C VC Data Model v2
  • SM4 加密存储 — 私钥和 VC 使用 SM4-CTR+SM3-HMAC 本地加密
  • 自动更新 — 内置版本检查 + system_update 工具

Tools

MCP Server 运行时动态暴露以下 14 个工具:

实名身份关联

| 工具 | 说明 | |------|------| | identity_link | 发起实名关联:生成二维码,用户扫码认证后自动领取实名凭证(VC) | | identity_status | 查询当前 Agent 的实名关联状态与身份信息 | | identity_revoke | 注销实名关联并作废凭证 |

可验证证明(VP)

| 工具 | 说明 | |------|------| | identity_vp | 生成 SD-JWT 可验证证明(VP),支持选择性披露字段 | | identity_verify_vp | 验证 VP 的签名与披露内容 | | vp_parse | 解析 VP 结构,提取披露的声明字段 |

凭证与密钥查询

| 工具 | 说明 | |------|------| | vc_info | 查询本地已领取的可验证凭证(VC)摘要信息 | | vc_raw | 获取 VC 原始数据 | | key_info | 查询本地 SM2 密钥对与指纹信息 |

国密运算

| 工具 | 说明 | |------|------| | crypto_sign | 使用 SM2 私钥对数据签名 | | crypto_verify | 验证 SM2 签名 | | crypto_encrypt | SM2 加密数据 | | crypto_decrypt | SM2 解密数据 |

系统

| 工具 | 说明 | |------|------| | system_update | 检查 MCP Server 是否有新版本 |

AGENT INSTRUCTIONS

以下内容供 AI Agent 读取,用于自动完成安装和配置。

  1. Prerequisite — verify Node.js (do this FIRST, before installing). realagent-mcp requires Node.js >= 18.13 (npm and npx are bundled with it). Before installing, check the environment:

    • Run node --version and npm --version. If both succeed and node --version reports >= v18.13, skip to step 2.
    • If node/npm is not found (no Node.js) or the version is older than 18.13, stop and help the user set it up before going further:
      • Windows: winget install OpenJS.NodeJS.LTS (PowerShell), or download the LTS installer from https://nodejs.org.
      • macOS: brew install node@22, or nvm install --lts (nvm: https://github.com/nvm-sh/nvm).
      • Linux: nvm install --lts (nvm: https://github.com/nvm-sh/nvm), or the NodeSource repo for your distro.
    • After installing/upgrading, have the user restart the terminal and MCP client, then re-verify with node --version, npm --version, and npx --version. Only proceed to step 2 once all three succeed and Node >= 18.13 is confirmed.
  2. Install via npm (global, so realagent-mcp is on PATH):

    npm i -g realagent-mcp
  3. MCP client config — Each agent MUST have a unique --agent-id. One agent-id = one identity = one SM2 key pair. Never reuse an agent-id across agents. The realagent platform registers each key pair as a separate identity; shared agent-id causes identity conflicts.

    Generate an agent-id yourself, using a descriptive name based on the current project or the agent's purpose (e.g. "my-claude-code", "frontend-dev-helper", "pr-review-bot"). Use lowercase letters, digits and hyphens only. Then ASK the user to confirm before using it:

    I'll configure realagent-mcp with agent-id: <name>. This name will be used to derive your unique SM2 identity. Is that OK? You can change it to any name you prefer.

    Once confirmed, write this MCP config:

    {
      "mcpServers": {
        "realagent-mcp": {
          "command": "npx",
          "args": [
            "-y",
            "realagent-mcp",
            "stdio",
            "--agent-id",
            "<confirmed-name>"
          ]
        }
      }
    }

    Data is stored under .realagent/agents/ in the working directory. Add --data-dir to customize the path.

  4. Restart the MCP client. The server exposes 14 tools (5 identity + 4 key/VC

    • 4 crypto + 1 system). Start with identity_status.
  5. Version check — Call system_update at the start of each conversation (or at least once per day). When an update is available, tell the user and help them run npm update -g realagent-mcp or npm i -g realagent-mcp@latest. Only skip the version check if the user explicitly asks you to.