The RelayKit Blog

Guides, comparisons, and deep-dives on mobile proxies, SMS verification, virtual credit cards, and antidetect browsers. Written for operators who run at scale.

Proxies + AI
Run an AI Research Agent Across Multiple US Cities

One Multi Location mobile proxy, one agent script, many cities. Switch the proxy's city in the dashboard between runs and compare local search results, prices and listings — with a working Python runner that verifies the city before each pass.

Read article →
Proxies + AI

How to Use a Mobile Proxy with browser-use

Point a browser-use agent at a dedicated 4G/5G mobile proxy in a few lines: ProxySettings, the HTTP vs SOCKS5 choice, IP whitelisting, and a verification task that confirms the agent is really browsing from the proxy.

Read article →
Proxies + AI

Mobile Proxy Setup in Playwright (Python and Node)

Launch-level and per-context proxy config in Playwright, the one SOCKS5 limitation Chromium has, timeouts that fit a mobile connection, and a check that the page really loaded through the proxy.

Read article →
Proxies + AI

Add a Mobile Proxy to n8n (HTTP Request Node)

Where the Proxy option lives in the n8n HTTP Request node, the exact value to paste, how to verify it, and a small price-monitoring workflow that runs through a dedicated mobile IP.

Read article →
SMS · Number Rental

Best SMS Number Rental Services for Long-Term Use (2026)

OTP numbers are built for one-time codes. Long-term rentals are a different problem — redundancy, recycling policy, rental duration, and API access all matter. Honest breakdown of which services hold up.

Read article →
Multi-Account · Proxies

How to Run Multiple Ad Accounts Without Getting Banned

Facebook, Google, and TikTok build an identity graph from your IP, browser fingerprint, payment method, and phone number. If two accounts share any node, both get banned. Here's how to sever every link.

Read article →
Proxy Guide

How to Make Your Own 4G Proxy — And Why Most People Stop Halfway Through

Building a DIY 4G proxy is possible: modem, SIM, Raspberry Pi, 3proxy. But CGNAT blocks most consumer SIMs, carrier ToS kills high-volume accounts, and at 5 proxies the cost math stops working. Honest breakdown.

Read article →
Cloud Browser

Cloud Antidetect Browser vs Desktop: Which One Should You Use?

AdsPower and Multilogin run on your machine — a cloud antidetect browser runs on isolated remote hardware. The fingerprint difference is bigger than most people realize. Full comparison with pricing.

Read article →
Proxies + AI

Mobile Proxies for AI Agents: Why They Get Blocked and How to Fix It

AI agents get blocked because of their IP, not their behavior. Datacenter IPs are flagged before the first request. Here's how 4G/5G mobile proxies solve this — with code examples for Python, LangChain, and Playwright.

Read article →
Privacy · VCC

The VCC + Proxy Privacy Combo: Why a Proxy Alone Isn't Enough

A proxy changes your IP. But payment fingerprints, phone numbers, and browser fingerprints still link your accounts. The complete four-layer privacy stack explained.

Read article →
SMS · Account Creation

SMS Verification for Account Creation: Why VoIP Gets Rejected and How to Fix It

Platforms like Google, Meta, and Coinbase reject VoIP numbers at signup. Here's how carrier-based number lookup works and how to always pass SMS verification.

Read article →
Proxies · Roundup

Best Mobile Proxy Providers 2026: Compared and Ranked

Dedicated vs. shared, hourly pricing traps, carrier authenticity — the honest breakdown of which mobile proxy providers are actually worth using this year.

Read article →
Cloud Browser

RelayKit Cloud Browser: Every Feature Explained

AI-powered cloud browser sessions with live view, CAPTCHA auto-solving, stealth fingerprinting, and native proxy integration. No software to install. Starting at $0.25/session.

Read article →
Proxy Guide

Static vs. Rotating Proxies: Which One Do You Actually Need?

The difference is simple: does your IP stay the same, or change? That one distinction affects billing, account trust, and scraper performance. Here's how to pick.

Read article →