When you manage dozens or hundreds of seller accounts, even small sync jobs can multiply into thousands of calls. A single misconfigured workflow or an aggressive polling loop spreads across clients fast, and your Amazon SP-API integration ends up generating more traffic than expected. Why has this become a real concern now? Amazon fee changes in 2026 include an annual subscription fee for every public selling partner. If your system supports many sellers, understanding your traffic patterns matters more than ever. You need a clear view of which Amazon SP-API integrations create the heaviest load, how often your applications hit rate limits, and where hidden spikes start. The best part? You can view your call usage on Amazon’s Solution Provider Portal. This guide walks you through how to check Amazon SP-API usage, detect red flags early, and prepare for the 2026 shifts without unexpected costs. What are the New Pricing Rules for Amazon SP-API Calls? Before we get into the steps, it helps to understand why tracking your Amazon SP-API integration usage is now essential. Starting April 30, 2026, Amazon will meter SP-API usage for all third-party developers. Every GET call counts toward a monthly quota, and crossing that limit adds extra charges. For providers handling many seller accounts, those calls add up fast. Most systems connect multiple tools, sync jobs, and custom workflows. Each one generates its own flow of requests. A single aggressive polling job might not seem harmful on its own, but it can push you into a higher usage tier. Additionally, SP-API employs strict rate limits via a token bucket model, which slows down other requests when traffic spikes. This is where visibility helps. A quick audit from the Solution Provider Portal lets you spot noisy tools, control usage growth, and keep your operations comfortably within the Basic Tier. The review takes only fifteen to thirty minutes when you know where to look. How to Check Amazon SP-API Usage Monitoring Amazon API call usage gives you a clear view of how your applications behave across all managed seller accounts. 1. Log in to the Solution Provider Portal Start by signing in to Amazon’s Solution Provider Portal using the developer account linked to your SP-API application. This portal is separate from Seller Central and is specifically designed for managing integrations. From Seller Central, you can click on Develop Apps to get redirected to the Solution Provider Portal. Once logged in, you will see a dashboard that shows your registered applications, roles, and access settings. 2. Open the Apps Section From the main dashboard, navigate to the Apps section. This is where Amazon lists all SP-API applications associated with your developer account. Click on API Usage Dashboard. This dashboard shows your Amazon API call usage, rate-limit activity, and endpoint-level breakdowns for every application you maintain. You can see total API calls, breakdowns by API group such as Orders or Reports, and usage trends over time. This view helps identify which workflows are consuming the most calls and where optimization opportunities may exist. 3. Watch rate limits and throttling events Open your SP-API metrics panel and track rate-limit behavior. Frequent throttling means your calls are too dense or running in tight loops. Identify the endpoints where throttling occurs most often. Orders, inventory, and catalog operations usually generate the highest spikes. Use these insights to adjust sync rules or spread calls over longer intervals. 4. Review usage summaries and fix high-volume patterns Review your 7-day or 30-day usage reports. Look for repetitive patterns across sellers or tools that sync every few minutes. These are the most common drivers of inflated usage. Once you spot them, reduce polling frequency, merge duplicate jobs, or redesign workflows to bundle data instead of calling endpoints repeatedly. Small adjustments can make a noticeable difference across all clients you support. What Exactly You Should Look For (Checklist) Once you have your logs and usage reports, the next step is to scan for patterns that indicate potential issues across accounts. These patterns show how your tools behave during the day, how often they communicate with Amazon, and where the calls and load grow without reason. 1. Unusually high call volume A sudden increase in API calls typically indicates a change in your workflow. It might be a new Amazon SP-API integration, a new client onboarding, a recent deployment, or a feature update that increased fetch frequency. 2. Tools syncing every 1–2 minutes Aggressive polling is one of the biggest causes of unnecessary SP-API traffic. A sync loop that runs every one or two minutes across dozens of seller accounts can drain tokens and push your application toward higher tiers once metering begins. Review your default sync intervals, especially for high-load endpoints like orders and inventory. If you see sub-five-minute refresh cycles without a clear business need, increase the interval. 3. Calls from multiple tools When you use multiple tools, each tool pulls identical data, and the load increases without adding any real value. Each tool will consume its own usage limit. You can detect this pattern by checking the timestamps of calls hitting the same operation from different clients. If the pattern repeats, consider consolidating the tools or limiting their access. 4. Checking for repeated order, inventory, or catalog pulls Within the Solution Provider Portal, you can break down usage by API operations. This is how you spot repeated orders, inventory, or catalog pulls. Look at which endpoints consume the most requests. Updated Usage Tiers Amazon revised how SP-API access will be billed starting in 2026. This change affects third-party Amazon SP API developers (apps offered to multiple sellers), not private apps used only by a single seller. The new structure includes an annual subscription plus costs based on GET API call volume. Tier Annual / base cost Included GET calls / month Monthly fee Overage rate (GET calls beyond included) Basic US $1,400 (annual) 2.5 million US $0 US $0.40 per 1,000 calls Pro US $1,400 (annual) 25 million US $1,000 US $0.40 per 1,000 calls Plus US $1,400 (annual) 250 million US $10,000 US $0.40 per 1,000 calls Enterprise Custom (contact Amazon) Custom (high-volume needs) Custom US $0.40 per 1,000 calls (or custom overage) How Optimizing SP API Calls Helps Keeping your SP-API usage tight gives you more control over the cost and performance of your clients. When every tool syncs efficiently, you avoid unnecessary calls and stay well within the Basic Tier. 1. Lower monthly fees Streamlined call behavior helps avoid unnecessary usage. Many tools ping order or inventory endpoints far more often than needed. Once you adjust those patterns, the overall traffic drops. This makes it easier for you to stay in the Basic Tier since the system no longer sends extra requests. It helps you control your costs and keep monthly fees to a bare minimum. 2. Reduced throttling Amazon SP-API integration services apply tight limits across endpoints. If your tool fires too many calls at once, Amazon slows the requests. This impacts how quickly orders load or inventory adjusts. With a tuned call strategy, your product stays within limits. Users experience smoother performance and fewer support tickets. 3. Faster syncing When your tools are optimized, they send fewer requests while still keeping data fresh. This reduces congestion and improves update speed. Your orders show up sooner, your stock adjusts faster, and your pricing stays accurate. The system doesn’t waste time processing repeated or redundant calls. 4. Better performance during peak periods Sales spikes create a natural load on your system. If your tools already make excessive calls during normal days, they struggle even more during events like Prime Day or holiday sales. Optimizing usage creates breathing room. Your API quota stays available for real customer activity instead of backend calls. That means your order flows remain smooth and your inventory updates stay on time even when traffic surges. 5. Better cost planning When you keep your API usage under control, your monthly cost becomes consistent. This helps your finance and operations teams plan better. You know how much each SP-API integration contributes to the bill, so forecasting becomes easier. Predictability also helps when onboarding new tools, since you already have clear benchmarks for acceptable call volume. How eSellerHub Helps Smart Sellers Stay Ahead Many sellers rely on several disconnected tools, which often trigger overlapping SP-API calls without anyone noticing. This creates unnecessary traffic, higher usage numbers, and more work for the team. To tackle this, you need to opt for an Amazon SP API development company. eSellerHub gives you a unified backend built to handle orders, inventory, catalog entries, and reporting in one place. Instead of multiple tools hitting the same endpoints, your clients function on a setup that follows a single call pattern. With a cleaner setup, staying within the minimum API costs becomes far more achievable. Connect with us to understand how we can help. Enter your Details to Receive the Checklist ×