> For the complete documentation index, see [llms.txt](https://doc.thordata.com/doc/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.thordata.com/doc/zh/chang-jian-wen-ti/chan-pin-wen-ti/qi-ta/thordata-serp-api-shi-bai-qing-qiu-hui-shou-fei-ma.md).

# ThorData SERP API 失败请求会收费吗？

通常不会。[Billing Instructions](https://doc.thordata.com/doc/scraping/serp-api/billing-instructions) 说明只有返回 `200` 的成功请求计费；`400`、`401`、`403`、`429`、`500`、`504` 等不计费。适合控成本，不适合无限制乱发请求。