# Best Buy Developer API vs Etsy Open API v3 (slim)

> Etsy Open API v3 scores 63.4 (B) to Best Buy Developer's 39.1 (E) for product search for shoppers. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/best-buy-vs-etsy.md (~2,050 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/best-buy-vs-etsy.json · canonical https://www.anchorterminal.com/compare/best-buy-vs-etsy
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-14

Etsy Open API v3 scores 63.4 (B) on agent readiness against Best Buy Developer API's 39.1 (E), and leads in 5 of 7 scored categories. Best Buy Developer API leads on agent ergonomics. Both do product search for shoppers.

- Best Buy Developer API: E 39.1, rank #991 of 1076 · https://www.anchorterminal.com/tools/best-buy.min.md
- Etsy Open API v3: B 63.4, rank #421 of 1076 · https://www.anchorterminal.com/tools/etsy.min.md
- Best Buy Developer API, good for Product, price and store-availability search for US electronics, for agents that compare and then hand the purchase to the person. Ahead on Agent ergonomics, 72 against 64.
- Etsy Open API v3, good for Product discovery and price comparison across Etsy's handmade and vintage listings. Ahead on Reliability, 77 against 31; Schema & documentation, 75 against 45; Security & auth, 62 against 32; Maintenance & community, 65 against 5; Transparency & trust, 58 against 47.

| Category | Best Buy Developer API | Etsy Open API v3 |
| --- | --- | --- |
| Reliability (16%) | 31 | 77 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 45 | 75 |
| Agent ergonomics (13%) | 72 | 64 |
| Security & auth (14%) | 32 | 62 |
| Payments & pricing (10%) | 30 | 30 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 5 | 65 |
| Transparency & trust (7%) | 47 | 58 |

| Fact (where they differ) | Best Buy Developer API | Etsy Open API v3 |
| --- | --- | --- |
| Vendor | BestBuy.com, LLC (Best Buy Co., Inc.) | Etsy, Inc. |
| Hosted endpoint | `https://api.bestbuy.com/v1/` | `https://api.etsy.com/v3` |
| Auth | API key | OAuth or key |
| Licence | Proprietary service under the Best Buy Developer API terms. The SDKs in the BestBuyAPIs GitHub organisation are open source | Proprietary service under Etsy's API Terms of Use (https://www.etsy.com/legal/api, not read, bot check). The etsy/open-api repository holds discussions and templates only |
| Last release | none | 2026-10-13 |
| Terms last updated | 2021-02-23 | couldn't be read |
| Customer content may train models | not found in the text | couldn't be read |
| Terms restrict automated access | not found in the text | couldn't be read |
| Terms restrict benchmarking | yes | couldn't be read |
| Terms or service can change without notice | yes | couldn't be read |
| Arbitration or class-action waiver | yes | couldn't be read |
| Popularity | 489 npm/wk | none |