使用场景

查看 Facebook Marketplace 上的二手与转售价格

Q: 能搜索特定城市吗？

可以。城市是 Marketplace 链接的一部分，例如示例中的 nyc 段。把你复制的链接通过 urls 传入即可。

Q: 一次运行能读取多少条商品信息？

最多 200 条。把 max_results 设为你想要的数量。

把 Facebook Marketplace 搜索结果转成 JSON，含标题、价格、所在地和照片，用来给二手商品定价、发现低价货源、评估本地转售市场。

预付费，无订阅REST 或 MCP一个密钥搞定模型、数据和智能体

如果你做二手转售、要给以旧换新估价，或想知道某件二手物品在你所在的城市值多少钱，Facebook Marketplace 上的挂牌价就是市场行情。但它们藏在一个只能手动浏览的信息流里。Lovely Router 替你读取这个信息流。发送一个 Marketplace 搜索或品类链接，就能拿到每个商品一个 JSON 对象，按商品信息条数从预付费余额中计费。用一个 API 密钥，就能从脚本、表格任务或 AI 智能体中调用。

交给你的 AI 智能体

把这段提示词复制到 Claude Code、Cursor、Codex 或任何编程智能体中。它会告诉智能体文档在哪里，以及如何使用你的 API 密钥。

查看 Facebook Marketplace 上的二手与转售价格. Use the Lovely Router data tools: each returns JSON and is billed per result.

- Docs (read first): https://lovelyrouter.com/docs/tools/find.md and https://lovelyrouter.com/docs/tools/run.md
- Plan first: POST https://lovelyrouter.com/v1/tools/suggest with `{"task": "<my task in plain words>"}` (free). It returns the tools to run in order, each with an example `input`, the `input_required` fields, an estimated cost and a ready-made `run` request. Replace the example values with my task's; if a field is unclear, read the tool with GET https://lovelyrouter.com/v1/tools/<id>. To browse instead, POST https://lovelyrouter.com/v1/tools/discover searches the catalog.
- Show me the plan and its estimated cost (`total_est_cost_usd`) before running anything large.
- Run: POST https://lovelyrouter.com/v1/tools/<id>/run with `{"input": {...}, "max_results": N}`. A 200 has the finished run with `items`; a 202 means it is still running, so poll the `poll` path until `status` is `succeeded`, `failed`, `timed_out` or `stopped`.
- Only delivered results are billed. Keep max_results small on the first run, check the output, then scale up.
- If you support MCP, connect https://lovelyrouter.com/mcp instead (Streamable HTTP, same key; https://lovelyrouter.com/docs/tools/mcp.md) and use suggest_tools, get_tool and run_tool.
- Auth: read my API key from the LOVELY_API_KEY environment variable and send it as `Authorization: Bearer $LOVELY_API_KEY`. Never print or commit the key. If it is not set, ask me to create one at https://lovelyrouter.com/app/keys.
- Billing is prepaid: every call is charged to my balance, so test with a small request before running anything large.
- Every docs page is plain Markdown; the full index is https://lovelyrouter.com/llms.txt.

My task: <the inputs (links, keywords or accounts) and how many results you need>

工作原理

构建搜索链接
在 Marketplace 中搜索你所在城市的该商品，或打开某个品类，然后复制地址。
设置上限后运行工具
把链接放进 urls，连同 max_results 发送到 POST /v1/tools/facebook-marketplace/run，max_results 决定这次运行读取多少条商品信息。运行会从你的余额中预留它的最高费用。
计算价格区间
取各条商品价格的中位数和离散程度。每周重新运行，看看价格是否出现漂移。

一次请求获取 Marketplace 商品信息

搜索 Facebook Marketplace在 urls 中接受 Marketplace 搜索或品类链接。上限是请求上的 max_results：

Shell

curl https://lovelyrouter.com/v1/tools/facebook-marketplace/run \
  -H "Authorization: Bearer $LOVELY_API_KEY" \
  -H "content-type: application/json" \
  -d '{
    "input": {
      "urls": [
        "https://www.facebook.com/marketplace/nyc/search?query=bike"
      ]
    },
    "max_results": 20
  }'