| Price from | $0.10/mo | $0.60/mo |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Plans published | 5 | 6 |
| Spec score · Residential Proxy Services | 7.9 (#48) | 9.0 (#6) |
| API | Astro documents API methods for proxy integration and IP rotation, including POST and GET functions. | The documented REST Usage API is limited to 120 requests per minute, and a separate endpoint generates lists of up to 1,000 proxy endpoints. |
| Free plan | No | No |
| Integrations | Astro says its proxies work with third-party software, including antidetect browsers, headless browsers, and automation written in Java, Python, or C#. | KnoxProxy lists more than 81 copy-paste integration guides across nine categories. |
| Network | The homepage says the network includes 50M+ ethically sourced proxies across 100+ countries. | The site reports a pool of more than 90.4 million IPs across 195 countries, with city- and ASN-level targeting. |
| Product | Astro sells residential, mobile, and datacenter proxy access for web scraping, SEO, and data collection. | KnoxProxy provides residential, mobile, ISP, and datacenter proxy networks for developers and data teams collecting public data at scale. |
| Protocols | Residential proxies support HTTP, HTTPS, and SOCKS5 protocols. | HTTP/S and SOCKS5 are available using the same credentials. |
| Proxy types | residential | Products include residential, ISP, mobile, datacenter, rotating, dedicated and IPv6 proxies. |
| Support | The site offers live support and lists [email protected] as a contact address. | Support is advertised as 24/7 with a four-minute median first reply. |
| Use cases | The site lists web scraping, SEO and SERP tracking, social media management, ad verification, and market research as use cases. | Published use cases include web scraping, price monitoring, SEO and SERP tracking, multi-accounting, ad verification, market research and brand protection. |
