Compare · Everyday APIs

Shopping, returns & refunds compared head to head

8 like-for-like comparisons of shopping and order APIs for AI agents buying for a person, each pair scored category by category with prices, facts and verdicts side by side. Pairs are made only when both do the same job.

8 comparisons
2 jobs
5 ranked

Ranked

Product search for shoppers 6

Amazon Creators API vs Best Buy Developer API D 48.7 vs E 39.1
Amazon Creators API vs Etsy Open API v3 D 48.7 vs B 63.4
Amazon Creators API vs Walmart Affiliate Marketing API D 48.7 vs E 38.6
Best Buy Developer API vs Etsy Open API v3 E 39.1 vs B 63.4
Best Buy Developer API vs Walmart Affiliate Marketing API E 39.1 vs E 38.6
Etsy Open API v3 vs Walmart Affiliate Marketing API B 63.4 vs E 38.6

Affiliate product APIs 2

Amazon Creators API vs Instacart Developer Platform API + MCP D 48.7 vs D 48.3
Instacart Developer Platform API + MCP vs Walmart Affiliate Marketing API D 48.3 vs E 38.6

Do agents find, use and choose your tools?

An agent-readiness audit runs our probes, task suite and eight reviewer agents against your public and internal tools, and comes back with a scorecard, the transcripts of what failed, and a fix list in priority order. From $2,500, re-run included. We never take payment to move a rank. We do help companies earn one.