ColdProxy Developer Documentation
Connect, target, and automate ColdProxy proxies — gateway setup, the username tag scheme, per-language integrations, and the provisioning APIs.
Build your proxy string from your gateway host, a port in the 30000–34999 range, and your credentials:
gw-2312.coldproxy.com:30000:USERNAME:PASSWORDGetting started
Connect to ColdProxy and choose the right proxy product.
Connection
Gateway host, ports, authentication, and supported protocols.
Targeting & sessions
Geo-targeting, sticky vs rotating, and IP pinning via username tags.
Products
Connection specifics for each ColdProxy proxy product.
Integrations
Ready-to-use proxy setup for cURL, Python, Node.js, Selenium, Playwright, and more.
+7 more in IntegrationsTools & troubleshooting
Verify a proxy and fix common connection issues.
- Verify your proxy
- Common errors & fixes
- Sticky session not holding
- IPv6 reachability
- Avoiding TCP port exhaustion
Have a Large Project?
When the public plans don’t quite fit, ColdProxy can shape a tailored commercial plan around your workflow — custom speed tiers, custom monthly GB limits, and a plan built from Residential IPv4, Residential IPv6, or Datacenter IPv6.
- Custom speed & GB quotasCustom speed and monthly GB limits set to match how much traffic you run and which proxy types you use.
- Across the product lineupResidential IPv4 (Unmetered or GB-based), Residential IPv6, and Datacenter IPv6, sized to fit your project.
- Built around your workflowPricing, capacity, and session settings (rotating or sticky) matched to your project instead of a fixed package.