Travel Agent MCP Server
TravelAgentMCP 🌍✈️
一个用于 TVA OTA 平台的 MCP(模型上下文协议)服务器单体仓库:提供航班和酒店搜索与预订、签证和移民要求及预订跟踪、以及用户账户管理——专为 AI 旅行代理构建。
架构
TravelAgentMCP/
├── mcps/
│ ├── shared/ @travelagent-mcp/shared — HTTP client, config, guardrails, tool helper (not a server)
│ ├── flight-mcp/ tva-flight-mcp — search, pricing, seatmaps, booking lifecycle
│ ├── hotel-mcp/ tva-hotel-mcp — search, availability, booking lifecycle
│ ├── visa-mcp/ tva-visa-mcp — country requirements + booking tracking
│ ├── immigration-mcp/ tva-immigration-mcp — service info + booking tracking
│ └── account-mcp/ tva-account-mcp — auth, profile, promo codes, notifications
└── src/index.ts travelagent-mcp — gateway that mounts all five servers' tools in one process每个 mcps/* 包都是一个独立可运行的 stdio MCP 服务器,带有自己的 bin。运行你需要的那些(例如,仅 tva-flight-mcp + tva-hotel-mcp 用于预订小部件,或仅 tva-visa-mcp + tva-immigration-mcp 用于咨询机器人),或运行根网关(travelagent-mcp)以在一个进程中获取所有功能——这就是已发布的 npm 包一直以来的形式,为向后兼容而保留。
一个上游 API,两种认证模式:
TVA OTA 后端(
TVA_BASE_URL)——航班、酒店、预订、账户,以及签证/移民预订跟踪的“客户端”侧(更新、通知、交易)。大多数预订管理端点需要 bearer 令牌;访客结账流程(预订、按 UUID 取消、验证、重新发送票据)则不需要。签证/移民内容(相同的
TVA_BASE_URL,通过CONTENT_API_KEY而非 bearer 令牌认证)——国家要求、签证类型、费用和常见问题解答,仅由GET_VISA_INFO_BY_COUNTRY/GET_IMMIGRATION_INFO_BY_COUNTRY使用。
Related MCP server: orizn-visa-mcp
防护措施
最小权限:仅暴露面向用户的端点。管理/运营端点(预订管理、退款、收入统计)故意不包装为工具——它们不适合对话式代理。
明确确认:每个涉及资金流动或不可逆的工具(
BOOK_FLIGHT、BOOK_HOTEL、CANCEL_FLIGHT_BOOKING、CANCEL_HOTEL_BOOKING、CONFIRM_FLIGHT_PAYMENT、CONFIRM_HOTEL_PAYMENT、SELECT_FLIGHT_SEAT、CHANGE_PASSWORD、CLOSE_ACCOUNT)都需要confirm: true,调用代理应在向用户回读具体细节后才设置此参数。LLM 上下文中无秘密:
TVA_ACCESS_TOKEN绝不是工具参数——它从进程环境中读取,由生成这些服务器的任何代理按用户会话注入。LOGIN_USER/SOCIAL_AUTH_LOGIN将令牌包装在__session信封中返回,供生成代理拦截并带外存储;模型仅看到一条纯确认消息。请参阅mcps/account-mcp/src/lib/session.ts了解约定。无原始报价重放:Amadeus 航班报价是大型不透明 JSON 块。
SEARCH_FLIGHTS将每个报价缓存在服务器端(SQLite,请参阅mcps/flight-mcp/src/lib/offerCache.ts),并向模型提供一个简短的offerRef——模型永远不会手动重建报价 JSON,这可能会带来令牌膨胀或价格/费用静默损坏的风险。脱敏:密码、令牌、OTP 和卡号在记录任何内容之前都会被屏蔽(请参阅
mcps/shared/src/guardrails.ts)。已知风险——酒店支付:
BOOK_HOTEL当前直接接收原始卡详细信息(TVA 酒店 API 尚无令牌化结账步骤)。这必须仅由通过符合 PCI 标准的表面收集了卡详细信息的客户端调用——绝不能通过提示用户在聊天中键入卡号来调用。请参阅工具描述了解详情。速率限制:每个工具调用按进程进行节流(防止失控的函数调用循环)。这不能替代持久的、跨轮次的节流——如果你需要真正的保护,请在会话层持久跟踪滥用情况。
设置
pnpm install
cp .env.example .env # fill in TVA_BASE_URL and content-API keys
pnpm build # builds mcps/shared first, then every domain server, then the gateway运行网关(一个进程中的所有工具):
pnpm start或直接运行单个域服务器:
node mcps/flight-mcp/dist/index.js工具参考
航班(tva-flight-mcp)
SEARCH_FLIGHTS、GET_POPULAR_FLIGHT_ROUTES、GET_FLIGHT_PRICE_ANALYSIS、GET_MOST_TRAVELED_DESTINATIONS、GET_MOST_BOOKED_DESTINATIONS、GET_BUSIEST_TRAVEL_PERIOD、GET_FLIGHT_SEATMAP_BY_OFFER、GET_FLIGHT_SEATMAP_BY_ORDER、GET_FLIGHT_FARE_UPSELL、PREDICT_FLIGHT_CHOICE、CONFIRM_FLIGHT_PRICE、BOOK_FLIGHT、LIST_MY_FLIGHT_BOOKINGS、GET_FLIGHT_BOOKING、VERIFY_FLIGHT_BOOKING、CANCEL_FLIGHT_BOOKING、GET_FLIGHT_SEAT_PRICE、SELECT_FLIGHT_SEAT、RESEND_FLIGHT_TICKET、GET_FLIGHT_TICKET_DOWNLOAD_LINK、CONFIRM_FLIGHT_PAYMENT
酒店(tva-hotel-mcp)
SEARCH_HOTELS、SEARCH_HOTEL_CITIES、CHECK_HOTEL_AVAILABILITY、BOOK_HOTEL、LIST_MY_HOTEL_BOOKINGS、GET_HOTEL_BOOKING、CONFIRM_HOTEL_PAYMENT、CANCEL_HOTEL_BOOKING
签证(tva-visa-mcp)
GET_VISA_INFO_BY_COUNTRY、LIST_MY_VISA_BOOKINGS、GET_VISA_BOOKING、GET_VISA_BOOKING_BY_APPLICATION_UUID、GET_VISA_UPDATES、GET_VISA_UPDATES_BY_BOOKING、GET_VISA_FOLLOWUP_QUESTIONS、ANSWER_VISA_FOLLOWUP、GET_VISA_NOTIFICATIONS、MARK_VISA_NOTIFICATION_READ、GET_VISA_TRANSACTIONS、GET_VISA_TRANSACTION_DETAIL
移民(tva-immigration-mcp)
GET_IMMIGRATION_INFO_BY_COUNTRY、LIST_MY_IMMIGRATION_BOOKINGS、GET_IMMIGRATION_BOOKING、GET_IMMIGRATION_UPDATES、GET_IMMIGRATION_UPDATES_BY_BOOKING、GET_IMMIGRATION_NOTIFICATIONS、MARK_IMMIGRATION_NOTIFICATION_READ、GET_IMMIGRATION_TRANSACTIONS、GET_IMMIGRATION_TRANSACTION_DETAIL
账户(tva-account-mcp)
REGISTER_USER、LOGIN_USER、SOCIAL_AUTH_LOGIN、FORGOT_PASSWORD、RESEND_OTP、VERIFY_OTP、LOGOUT_USER、GET_CURRENT_USER、GET_USER_PROFILE、EDIT_USER_PROFILE、CHANGE_PASSWORD、CHECK_DISCOUNT_PROMO、GET_USER_NOTIFICATIONS、CLOSE_ACCOUNT
被以下项目使用
MegaMind 的 NomadSage 旅行代理生成这些服务器(通过 stdio,每个域一个),以及其知识库搜索和 social-mcp 回复工具——请参阅该仓库中的 travel-agent/src/lib/tva-client.ts 和 travel-agent/src/lib/tva-session.ts。
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