# Best Buy Developer API vs Walmart Affiliate Marketing API (slim)

> Best Buy Developer and Walmart Affiliate Marketing score within a point of each other for product search for shoppers, 39.1 and 38.6 out of 100. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/best-buy-vs-walmart-affiliate-api.md (~2,100 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/best-buy-vs-walmart-affiliate-api.json · canonical https://www.anchorterminal.com/compare/best-buy-vs-walmart-affiliate-api
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-14

Best Buy Developer API and Walmart Affiliate Marketing API score within a point of each other on agent readiness, 39.1 (E) and 38.6 (E). Walmart Affiliate Marketing API leads on security & auth and transparency & trust. 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
- Walmart Affiliate Marketing API: E 38.6, rank #995 of 1076 · https://www.anchorterminal.com/tools/walmart-affiliate-api.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 Schema & documentation, 45 against 27; Agent ergonomics, 72 against 57; Payments & pricing, 30 against 25.
- Walmart Affiliate Marketing API, good for Product search and affiliate links for an agent recommending Walmart products and handing the purchase to the person. Ahead on Security & auth, 58 against 32; Transparency & trust, 53 against 47.

| Category | Best Buy Developer API | Walmart Affiliate Marketing API |
| --- | --- | --- |
| Reliability (16%) | 31 | 33 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 45 | 27 |
| Agent ergonomics (13%) | 72 | 57 |
| Security & auth (14%) | 32 | 58 |
| Payments & pricing (10%) | 30 | 25 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 5 | 5 |
| Transparency & trust (7%) | 47 | 53 |

| Fact (where they differ) | Best Buy Developer API | Walmart Affiliate Marketing API |
| --- | --- | --- |
| Vendor | BestBuy.com, LLC (Best Buy Co., Inc.) | Wal-Mart.com USA, LLC (Walmart Inc.) |
| Hosted endpoint | `https://api.bestbuy.com/v1/` | `https://developer.api.walmart.com/api-proxy/service/affil/product/v2` |
| Licence | Proprietary service under the Best Buy Developer API terms. The SDKs in the BestBuyAPIs GitHub organisation are open source | Proprietary service under the Walmart I/O API Terms of Use (last updated 30 September 2020) |
| Read-only variant documented | no | yes |
| Terms last updated | 2021-02-23 | 2026-09-09 |
| Privacy policy last updated | couldn't be read | 2026-08-20 |
| Customer content may train models | not found in the text | yes |
| Terms restrict automated access | not found in the text | yes |
| Terms restrict benchmarking | yes | not found in the text |
| Popularity | 489 npm/wk | none |