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Why Proxies Are Required

FunBypass requires a proxy for every task. The proxy is used to initialize the session from an IP address that matches your target use case. Using the right proxy is critical for stable completion rates.

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Proxy Format

Proxies must follow this format:

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Supported Protocols

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Validation Rules

The API validates your proxy before processing:
  • Protocol must be http, socks4, or socks5
  • Port must be between 1 and 65535
  • Authentication (username:password) is required
  • The proxy must be reachable within 3 seconds
Invalid proxies will return an error immediately. Dead or slow proxies will cause ERROR_PROXY_CONNECTION after the connection timeout.

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Best Practices

Residential proxies have the highest success rates because they appear as real user connections. Datacenter proxies may be flagged by FunCaptcha.
Use proxies from the same region as your target users. The API automatically detects the proxy’s geolocation and sets the correct timezone and language.
Avoid using the same proxy for too many consecutive requests. Rotate across a pool of proxies to reduce detection risk.
Before sending tasks, verify your proxy is working and has acceptable latency. High-latency proxies increase processing time.
We recommend the provider below for FunBypass tasks.

Legion Proxy

Supports UDP and HTTP/3 with sticky SOCKS5 sessions — modern transport and stable connections that hold up across FunCaptcha tasks.
Recommended configuration:
Recommended Legion Proxy settings

Recommended Legion Proxy settings

Pass it to your task as a standard socks5://user:pass@ip:port string.

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Proxy Errors

Invalid or unreachable proxies return an ERROR_INVALID_PROXY_* or ERROR_PROXY_CONNECTION code. See Error Codes for the full list.

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IP Geolocation

When a task is processed, the API fetches geolocation data from the proxy’s IP address to determine:
  • Timezone offset — Used in fingerprint generation
  • Language — Sets the Accept-Language header
  • Region — Matches browser locale settings
This happens automatically — you don’t need to configure it manually.