toolgrep / Other / KDP123

Alternatives to KDP123

KDP123: Free KDP calculators and a checked directory of 151 Amazon KDP tools. 8 products similar to KDP123, compared on pricing, free tier, API, MCP server, SDK and open source. 8 of 8 have a free tier, 8 of 8 have an API, 8 of 8 offer an MCP server.

• KDPTop

  Amazon KDP book research: tracks Amazon Books and Kindle best-seller lists daily with sales estimates, keyword data, author tracking and AI briefs.

  Analytics & data free tierAPIMCP

• Peptide Library

  Independent peptide research platform for comparing vendors, calculating concentrations, and tracking research

  Other free tierAPIMCP

• AMZ Vault

  Settlement-accurate Amazon P&L and PPC management software with a native MCP AI connection

  Other free tierAPIMCP

• CalcBright

  Free, keyless JSON API and MCP server exposing 167+ calculators to apps and AI assistants.

  MCP servers free tierAPIMCP

• API Tool Calls

  Free small tools for people and AI agents, callable via MCP or HTTP with no sign-up.

  MCP servers free tierAPIMCP

• Apiguru Amazon Data API

  Real-time Amazon marketplace data API: product details, pricing, reviews, seller analytics, and inventory across 23 marketplaces.

  Scraping & browser automation free tierAPIMCP

• Canopy API

  Real-time Amazon product data via REST, GraphQL, and MCP

  Scraping & browser automation free tierAPIMCP

• RestaurantDoctorAI

  A free 12-question profit check for independent restaurant owners, also available as a read-only MCP server for AI assistants.

  MCP servers free tierAPIMCP

Side by side

Facts come from each product's own website, or from its verified owner when they have edited the listing. Each product page shows when it was last verified and how it was extracted. Similarity comes from the products' descriptions.

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