eComEngine vs MerchantWords
eComEngine
ecomengine.comMerchantWords
merchantwords.comSide by side
| Figure | eComEngine | MerchantWords |
|---|---|---|
| Price from | $34/mo | $35/mo |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| API | — | Yes |
| Plans published | 4 | 8 |
| Spec score · Amazon Seller Tools | 8.1 (#3) | 8.1 (#4) |
| Founded | 2007 | 2012 |
| Security | The pricing page says eComEngine uses advanced encryption and follows industry best practices to protect customer information. | MerchantWords says it uses encryption in transit (TLS) and at rest to help protect personal information. |
| Support | The company says it provides customer support through live chat, email, and a knowledge base. | The product pages advertise 24/7 customer support, while the API Starter plan includes email support and the Pro API plan includes priority support. |
Plans
eComEngine
- FeedbackFive$34 a month
- Feedback & Reviews$34 a month
- Inventory Software$49 a month
- Operational Analytics$89 a month
MerchantWords
- Demo (API)Free
- Silver$35 a month
- Gold$79 a month
- Starter (API)$79 a month
- Platinum$149 a month
- Pro (API)$499 a month
- Enterprise$749 a month
- Enterprise (API)$1,499 a month
In their own words
eComEngine
eComEngine has no write-up on Specifiction yet; its figures are above.
MerchantWords
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.