The SP-API has been free for years, but that ends in 2026. Amazon will begin charging third-party software providers for the data they pull and push through SP-API, covering everything from pricing updates to inventory sync, order flow and reporting. Most sellers are unaware that the majority of their daily tools rely on SP-API behind the scenes, which means some subscriptions could increase without much warning. A simple 2-minute check will show you which tools may be affected and help you prepare before any changes appear. Why the SP-API Fee Change Matters SP-API is the link between your software and your Amazon account. Every price change, stock update, order sync and report request runs through it. Until now, these data calls were free for software providers. From 2026, they will be billed for the volume of SP-API requests their tools make. Most sellers use multiple tools that rely on constant SP-API activity. Repricers, inventory sync systems, order connectors, dashboards and multi-channel tools all generate frequent calls. Under the new model, this usage becomes a direct cost. Tools with heavy or high-frequency data demands will become more expensive to operate, and many providers will adjust their pricing. Reviewing your stack early helps you prepare and avoid unexpected increases later. How to Check Whether Your Tools Will Be Affected (Step-by-Step) This quick check helps you see whether the A fee changes could impact the tools you are using. No technical experience is needed. Step 1: Go to “Manage Your Apps” in Seller Central Menu → Apps & Services → Manage Your Apps This page shows every authorised tool connected to your Amazon account. Step 2: Spot tools that rely heavily on SP-API Look for tools that handle such tasks as: Repricing automation Stock or FBA quantity syncing Pulling orders to Shopify or a WMS Sales and profit reporting dashboards Multi-channel listing and order syncing These functions make frequent data requests and are the most likely to feel the Amazon SP-API fee impact on tools. Step 3: Check for duplicate tools doing the same job Examples include: Two repricers Two inventory sync systems Two reporting dashboards Duplicate tools often create unnecessary API usage which may lead to higher provider pricing. Step 4: Remove tools that are unused or outdated Watch for: Free trial tools still authorised Old connectors from previous systems Tools you no longer recognise or use If it is not part of your current workflow, it should not have access. Step 5: Confirm agency-installed tools If an agency or VA helped with your setup, ask them which tools they installed and still depend on. Compare their list with what you see in Manage Your Apps and flag anything that does not match your current workflow. Signs That Your Costs May Increase You are more likely to see higher software costs once the Amazon SP-API fee changes take effect if any of these apply to your set up: You use a repricer that updates prices frequently Repricers run constant competitor checks, generating heavy SP-API usage. Your stock or prices sync often Frequent inventory and price updates across channels create a high number of API calls. You have a large catalog with many variations More SKUs and variations require more requests to keep listings accurate. Amazon is linked to multiple sales channels Multi-channel tools continuously exchange data between Amazon, Shopify, Walmart and other platforms. Your dashboards pull live or real-time reports Reporting tools issue repeated data requests for profit, sales and inventory insights. Your tool provider has hinted at pricing changes Emails mentioning pricing reviews, usage-based plans or SP-API updates are early indicators of upcoming increases. What Sellers Can Do Before Fees Take Effect You can reduce the risk of higher software costs once the Amazon SP-API fee changes roll out by reviewing your setup early. No technical knowledge is required. Remove tools you no longer use Unused apps still make API calls. Disconnect anything that is not part of your current workflow. Cut down duplicate tools doing the same job If two tools are handling repricing, reporting or inventory sync, keep the one you rely on and remove the duplicate. Consolidate where possible A single platform that manages multiple channels often creates fewer API calls than several separate tools. Watch for pricing update emails Providers will begin announcing SP-API related pricing adjustments These emails are usually the first indicator of changes. Ask tool providers about their plans A direct question such as “Will SP-API fee changes affect your pricing?” gives clear insight into potential cost increases. Conclusion The new SP-API fee structure will impact many Amazon tools, but sellers who review their setup early will be in the best position to avoid unexpected price increases. A quick check today helps you understand which tools may stay cost-effective and which may need to be removed, replaced, or consolidated before pricing changes roll out. Two minutes of review now can save a lot of operational disruption later. Enter your Details to Receive the Checklist × Get My Checklist