Why does NextCaptcha need a proxy?
Many sites tie a captcha token to the IP address that asked for it. If the service solves from its own address and you submit from yours, the token can be refused. Passing your proxy to the service makes both come from one address.
Which proxy works best with NextCaptcha?
A residential proxy with a sticky session.
Proxy settings for NextCaptcha: host, port and login
A BooProxies plan gives you four things: a host, a port, a username and a password. These are the values for Residential; the username and password are on your plan page.
| Host | resi.proxies.boo |
|---|---|
| HTTP port | 8080 |
| SOCKS5 port | 1080 |
| Username | USERNAME |
| Password | from your plan page |
The country and the session are chosen in the username, not in a separate setting. The generator on your plan page writes the username for you, and Targeting and sessions explains each part.
NextCaptcha proxy setup, step by step
- Choose the task type that takes a proxy instead of the proxyless one.
- Fill in the proxy type, host, port, username and password in the fields its API reference names.
- Submit the token from your own client through the same proxy.
Rotating or sticky sessions for NextCaptcha?
Use a sticky session, and give NextCaptcha exactly the same username you use for your own requests. The session ID in the username is what keeps both on one IP address. With a rotating username the token is solved from one address and submitted from another, and sites that check this reject it.
A sticky username looks like this:
USERNAME-country-us-time-600-session-a1b2c3d4NextCaptcha proxy not working?
- If you move code over from another Anti-Captcha style service, check the task type names. They differ a little between services.
- A
407error means the username or password was not accepted. Copy both again from your plan page, and check that nothing added a space or cut the username short. - If the IP address is in the wrong country, look at the username: the country code is part of it. More fixes.
Questions about NextCaptcha and proxies
Which BooProxies proxy should I use with NextCaptcha?
A residential proxy with a sticky session.
Terms explained: captcha, captcha solver, sticky session, ip reputation.
NextCaptcha is a product of its own makers. BooProxies is not affiliated with it; the name is used here only to say what this guide is about. Use it within the rules of the sites you work with and our acceptable use policy.