n8n Cloud Static IP: Fixed Egress in 10 Minutes

QuotaGuard gives your n8n Cloud workflow a fixed outbound IP address. You configure one proxy URL in the HTTP Request node, hand the IP to your client's IT team, and the firewall allowlisting problem is solved permanently.

Why n8n Cloud Uses Rotating IPs

n8n Cloud runs on shared cloud infrastructure. When your workflow makes an outbound HTTP request, that request originates from whichever server handled your execution. The outbound IP is not fixed. It changes. Sometimes it changes between runs. Sometimes it changes mid-day.

This is completely normal for cloud platforms. AWS, GCP, and Azure all assign dynamic IPs to compute instances by default. n8n Cloud is no exception.

The problem is that a lot of enterprise APIs, internal tools, and third-party data providers sit behind firewalls that only accept traffic from a specific list of IP addresses. If your IP isn't on that list, the request gets dropped. No retry logic or authentication header will fix it.

Your client's IT team isn't being unreasonable. Their firewall is doing exactly what it's supposed to do. You just need a fixed IP to give them.

The Options (and Why Most of Them Are Painful)

There are a few ways to approach this problem.

Self-host n8n. If you run your own n8n instance on a VPS with a static IP, you can allowlist that IP directly. This works. It also means you're now managing a server, handling updates, dealing with uptime, and paying for infrastructure you didn't need before. For one automation integration, that's a lot of overhead.

Ask the client to expand their allowlist. Some firewall admins will accept a CIDR range that covers n8n's cloud IP pool. This is rarely acceptable for security-conscious clients, and n8n doesn't publish a guaranteed stable IP range for exactly this reason.

Route your requests through a static IP proxy. This is the practical option. Your n8n workflow stays in the cloud. You configure your HTTP Request node to route outbound traffic through a proxy that has a fixed IP. The firewall sees a consistent IP. The allowlist entry never needs to change.

How a Static Outbound IP Proxy Works

A static outbound proxy sits between your n8n workflow and the destination API. Every request you route through it exits from the same IP address. The destination server logs that IP. The firewall allows that IP. Done.

QuotaGuard provides exactly this. You get a fixed outbound IP that doesn't change, hosted on AWS infrastructure, starting at $19/month. You give that IP to your client's IT team once. They add it to the allowlist. Every future request from your workflow arrives from that same address.

There's no server to manage. No self-hosted n8n setup to maintain. The proxy handles routing. Your workflow stays on n8n Cloud.

Configuring n8n HTTP Request Node to Use a Proxy

n8n's HTTP Request node supports proxy configuration directly. You don't need to modify your workflow logic or add middleware. Here's how to set it up.

First, grab your QuotaGuard proxy credentials from the dashboard. You'll get a proxy URL in this format:

http://username:password@proxy.quotaguard.com:9293

In n8n Cloud, go to Settings > Environments (or your instance's environment variable configuration) and set the following:

HTTP_PROXY=http://username:password@proxy.quotaguard.com:9293
HTTPS_PROXY=http://username:password@proxy.quotaguard.com:9293

On n8n Cloud, you can pass these through the workflow itself if environment-level config isn't available to you. In that case, use the HTTP Request node's built-in proxy field. Open the node, scroll to Options, and set the proxy URL there:

http://username:password@proxy.quotaguard.com:9293

That's it. Every request from that node now exits through your fixed QuotaGuard IP.

If you're testing this in a Code node first, here's a minimal example using n8n's built-in HTTP capabilities to verify the proxy is working before you wire it into your full workflow:

import requests

proxies = {
    "http": "http://username:password@proxy.quotaguard.com:9293",
    "https": "http://username:password@proxy.quotaguard.com:9293",
}

response = requests.get("https://api.ipify.org?format=json", proxies=proxies)
print(response.json())
# {"ip": "YOUR_FIXED_QUOTAGUARD_IP"}

Run that and confirm the IP matches what QuotaGuard shows in your dashboard. If it does, you have your fixed egress IP. Hand that address to your client's IT team and ask them to add it to their allowlist.

What to Tell Your Client's IT Team

This part trips people up. You have the fixed IP. Now you need to get it allowlisted. Here's the simplest way to frame the request:

Send them the IP address and the port your workflow calls on their API. If their firewall operates at Layer 4, they just need the IP and port. If it operates at Layer 7, they may also need the User-Agent header, but most API firewalls don't require that.

QuotaGuard IPs are stable. They don't change unless you explicitly request a new one or change your plan. So this is a one-time conversation with their IT team, not an ongoing one.

Shared vs. Dedicated IPs

QuotaGuard's Micro plan ($19/month) uses a shared IP pool. Your IP is consistent for your account, but it's used by other QuotaGuard customers as well. For most API integrations, this works fine. The IP is stable and predictable.

If your client's security team pushes back on a shared IP (some enterprise environments require a dedicated IP that no other customer uses), QuotaGuard offers dedicated IPs on the Enterprise plan at $219/month. For a single client integration, shared is usually sufficient. For a managed service or an agency running multiple client workflows, dedicated gives you cleaner separation.

This Also Works for Inbound Webhooks

If your integration runs in both directions and you need your client to send webhook events back to your n8n workflow, QuotaGuard's Shield product gives you a fixed inbound IP as well. You get a stable endpoint your client can target, and traffic tunnels through to your n8n instance. This is worth knowing about if you're building a two-way integration and don't want to expose your n8n Cloud webhook URL directly.

When a Proxy Isn't the Right Answer

If your client's API uses mutual TLS (mTLS) and requires certificate-based client authentication in addition to IP allowlisting, a standard HTTP proxy won't handle the certificate negotiation. That scenario usually calls for a more custom setup. But the majority of firewall allowlist requirements are IP-only, and a proxy handles them cleanly.

Similarly, if you're dealing with a VPN-gated API rather than a firewall allowlist, a proxy won't help. VPN access and IP allowlisting are different problems.

Fix It Once, Move On

The rotating IP problem on n8n Cloud isn't a bug. It's just how shared cloud infrastructure works. The fix is straightforward: route your outbound requests through a static IP proxy, give your client the IP, get it allowlisted, and get back to building.

QuotaGuard takes about 10 minutes to set up. You don't need to touch your server configuration, spin up new infrastructure, or migrate off n8n Cloud. You add a proxy URL to your HTTP Request node and the problem goes away.

If you're hitting this exact issue, start at quotaguard.com. The Micro plan at $19/month covers most single-workflow integrations. Sign up, grab your proxy credentials, and follow the steps above.