MerchantWords vs sellerboard

MerchantWords provides Amazon keyword research, search-volume estimates, competitive analysis, and related e-commerce optimization tools. Classic Search shows estimated monthly volume, 12-month seasonality, related terms, and keyword depth and strength across Amazon marketplaces. ASIN Plus finds keywords a product ranks for when given its ASIN, while Product Tracker follows Amazon keyword rankings daily. Other tools include Collections, Emerging Trends, Keyword Explorer, Keyword Multiplier, Page 1 Products, and Bulk Search. MerchantWords says its keyword data comes from Amazon’s autocomplete search bar, and describes its volume and keyword figures as estimates without guaranteeing absolute accuracy. Collections can be exported as CSV files for listings and ad campaigns. Data is available through REST and MCP; the MCP page lists Claude Desktop, Claude Code, Cursor, VS Code Copilot, and compatible agent frameworks. A free API demo provides real data for a fixed set of terms without an account. Paid plans start at $35/mo. The Silver plan includes 500 searches, while Gold includes 1,000; Platinum and Enterprise list unlimited searches.

sellerboard provides profit analytics and business management tools for Amazon sellers, and describes support for Walmart and eBay sales. Its dashboard shows sales, orders, refunds, advertising costs, estimated payouts, net profit, and business KPIs. For Amazon, it accounts for more than 100 fees and supports FIFO, constant, batch, period-based, and marketplace-specific cost-of-goods methods. The inventory planner recommends reorder timing and quantities based on sales history, seasonality, supplier lead times, and user preferences. PPC reporting breaks performance out by campaign, ad group, or keyword, and bid automation can target ACOS or profitability. Refund reports detail costs and reasons, including refunded amounts, FBA fees, commissions, and lost COGS for unsellable returns. QuickBooks can sync profit, fees, and expenses; ShipStation can provide actual FBM shipping costs for profit reports. The service has iOS and Android apps and a Chrome plugin. Standard costs $19 per month billed monthly, or $179 billed annually ($15/mo). A one-month free trial is offered without a credit card.