n8n Cloud Static IP: Fixed Egress in 10 Minutes

Configure QuotaGuard as a proxy on your n8n HTTP Request node. Hand the static IP to IT. Every workflow request exits from the same address.

I see this in support tickets every week. An agency developer moves client workflows to n8n Cloud. Within days, the firewall-protected API starts rejecting requests. The IP changed. The code didn't. QuotaGuard fixes it in about ten minutes.

Why n8n Cloud Uses Rotating IPs

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

This is 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 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)

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 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 IT to allowlist n8n's IP ranges. n8n publishes their cloud IP ranges. For some internal tools with relaxed security requirements, that might be acceptable. For enterprise API gateways, it almost never is. See the next section on why security teams reject this.

Route requests through a static IP proxy. Your n8n workflow stays on n8n Cloud. You configure the HTTP Request node to route outbound traffic through a proxy with a fixed IP. The firewall sees a consistent address. The allowlist entry never needs to change.

Why n8n's Published IP Ranges Won't Satisfy Your Security Team

n8n does document their cloud IP ranges. The official guidance is to allowlist those ranges if you need a stable egress address.

Here's the problem. Those ranges are broad CIDR blocks shared across n8n's entire cloud infrastructure. Allowlisting a /16 or /20 that belongs to a major cloud provider means opening your firewall to thousands of other services running on the same infrastructure. Your security team will flag this. Enterprise security reviews almost always require a specific IP or small range that belongs to the requesting party exclusively.

A static proxy IP is narrower, auditable, and stable. It's a straightforward conversation with your security team: here are the two IPs, they belong to QuotaGuard's AWS infrastructure dedicated to your account, they don't change.

Setting Up QuotaGuard on n8n Cloud

The setup differs depending on whether you're on n8n Cloud or self-hosted.

n8n Cloud: Use the Credentials UI

On n8n Cloud you don't control the runtime environment directly, so system-level environment variables aren't available. The right approach is n8n's built-in proxy credential.

Sign up at quotaguard.com. After signup your dashboard shows your proxy URL:

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

In n8n Cloud, go to Credentials and create a new credential of type HTTP Proxy Auth. Fill in the details:

• Host: proxy.quotaguard.com
• Port: 9293
• Username: your QuotaGuard username
• Password: your QuotaGuard password

Open the HTTP Request node that calls your protected API. Under Options, find the Proxy field and select the credential you just created. Every request from that node now exits through your fixed QuotaGuard IP.

Self-Hosted n8n: Use Environment Variables

If you run your own n8n instance, set the proxy at the environment level. This covers all outbound HTTP traffic without touching individual nodes.

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

If you only want specific nodes to use the proxy, skip the environment variables and use the per-node proxy option instead.

Verify the IP Before Handing It to IT

Before you ask anyone to update a firewall rule, confirm your setup is working. Add a temporary HTTP Request node pointing to a public IP echo endpoint:

GET https://api.ipify.org?format=json

With the proxy credential attached, the response should return your QuotaGuard static IP. Run it twice. Run it tomorrow. The IP won't change.

QuotaGuard tip: don't send IT a single IP. Your account gets two load-balanced static IPs. Send both. Traffic may route through either at any time, and allowlisting only one will cause intermittent failures that are painful to debug.

What to Tell Your Client's IT Team

Send them the two IP addresses and the destination port your workflow calls on their API. If their firewall operates at Layer 4, that's all they need. If it operates at Layer 7, they may also want 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. This is a one-time conversation with their IT team, not an ongoing one.

EU Traffic Stays in the EU

If your internal API is subject to GDPR or other data residency requirements, QuotaGuard offers EU-region proxy endpoints. Your traffic stays within EU infrastructure throughout the proxy hop. Select the EU region during signup and use the EU proxy URL instead of the default.

This matters when your security team asks where request data transits. You can tell them the proxy endpoint is EU-hosted and the egress IP is a fixed EU address.

From Signup to Allowlisted: A Realistic Timeline

• Minutes 0–3: Sign up at quotaguard.com, note the proxy URL and both static IPs
• Minutes 3–6: Create the HTTP Proxy Auth credential in n8n Cloud
• Minutes 6–8: Attach the credential to your HTTP Request node, run the ipify test
• Minutes 8–10: Send both static IPs to your client's IT team for allowlisting

The ticket to the network team is usually the longest part of the process.

Shared vs. Dedicated IPs: Which One You Need

QuotaGuard's Starter 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 requires a dedicated IP that no other customer uses, that's the Enterprise plan at $219/month. For a single client integration, shared is usually sufficient. For an agency running multiple client workflows where clean IP separation matters, dedicated is worth it.

Two-Way Integrations: Fix Inbound Webhooks With Shield

If your integration runs in both directions and you need your client to send webhook events back to your n8n workflow, QuotaGuard Shield gives you a fixed inbound IP. You get a stable endpoint your client can target, and traffic tunnels through to your n8n instance. 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 needs a more custom setup.

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.

For the majority of enterprise firewall requirements — IP-only allowlisting on HTTP and HTTPS APIs — a proxy handles it cleanly.

Fix It Once, Move On

The rotating IP problem on n8n Cloud isn't a bug. It's how shared cloud infrastructure works. The fix is straightforward: configure the proxy credential, verify the IP, hand it to IT, and get back to building.

QuotaGuard's Starter plan is $19/month. Setup takes about ten minutes. See the full n8n integration guide at quotaguard.com/integrations/n8n-static-ip.