C# web scraping usually pairs HttpClient with an HTML parser such as AngleSharp. Reuse one client, set firm limits, validate every response, and stop pagination loops before saving records. Use Playwright for JavaScript-rendered pages, and add proxies only when a documented routing or location requirement exists.
Raw proxies and scraping APIs can both help a team collect public web data, but they are different purchases. A raw proxy supplies the network route. Your team still operates the HTTP client or browser, retry policy, extraction, validation, scheduling, and storage. A scraping API accepts a URL or collection task and manages some combination of routing, retries, rendering, extraction, and delivery.
The best proxy provider for Playwright or Puppeteer depends on the browser job. A small team validating its worker architecture needs a different product from an enterprise running localized browser tests, while a multi-page workflow may care more about Sticky-session behavior than the lowest price per gigabyte.
The 10 providers compared are Proxidize, Bright Data, Oxylabs, Decodo, SOAX, ProxyEmpire, DataImpulse, IPRoyal, Webshare, and Infatica. Proxidize best fits teams running their own collectors with residential or mobile infrastructure. The right service depends on geography, sessions, traffic, tooling, and budget.
Proxy quality is not determined only by how many IPs a provider has or where those IPs come from. It is also shaped by who can access the network, what they are permitted to do with it, and how quickly misuse is identified and stopped.
Pay per gigabyte (GB) usually fits variable, rotation-heavy workloads because spending follows transferred data. Pay per proxy often fits workloads that send heavy traffic through a small set of persistent Internet Protocol (IP) addresses. Provider limits differ, so compare bandwidth, IP count, session duration, utilization, and rotation needs before choosing.
Use Browser DevTools when the problem lives inside a webpage or browser runtime. It is the best first tool for request initiators, CORS failures, cache behavior, cookies, payloads, response bodies, and page-load waterfalls. Use an HTTP debugging proxy such as mitmproxy, Charles, Fiddler Everywhere, Proxyman, or HTTP Toolkit when you must capture configurable traffic from a mobile app, desktop app, command-line client, container, or several clients. A debugging proxy is also the strongest choice when you need breakpoints, rewrites, mocks, or replay.
JSON-RPC 2.0 is a lightweight protocol for representing method calls as JSON. It defines requests, responses, notifications, errors, and IDs, but it does not define what the methods mean or which transport must carry them.
To rotate proxies in Playwright, make the browser context your rotation boundary. Create a BrowserContext with one proxy, finish one independent task, close the context, and create the next context with the next proxy or the same provider-managed rotating gateway.
Use Streamable HTTP for a new remote Model Context Protocol (MCP) server. Use stdio when an MCP client launches a local server process. Keep legacy HTTP+SSE only when older clients still require it.
US residential proxy providers give a collector access to IP addresses associated with household internet connections in the United States. The useful differences are not just pool size. Buyers should compare the minimum payment, traffic received, state or city coverage, ISP targeting, session controls, protocols, unused-bandwidth rules, and whether they need raw proxies or a managed data product.