- SearXNG 一个开源的搜索引擎
- [[https://github.com/ItzCrazyKns/Perplexica?tab=readme-ov-file][Perplexica]] is an AI-powered search engine. It is an Open source alternative to Perplexity AI
- https://www.search1api.com/pricing (5 RPM / 20 RPD)
- google search api https://developers.google.com/custom-search/v1/using_rest
- https://tuningsearch.com/pricing 3k free call
