# Etsy Open API v3 vs Walmart Affiliate Marketing API (slim)

> Etsy Open API v3 scores 63.4 (B) to Walmart Affiliate Marketing's 38.6 (E) for product search for shoppers. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/etsy-vs-walmart-affiliate-api.md (~2,050 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/etsy-vs-walmart-affiliate-api.json · canonical https://www.anchorterminal.com/compare/etsy-vs-walmart-affiliate-api
- 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 Walmart Affiliate Marketing API's 38.6 (E), and leads in every scored category. Both do product search for shoppers.

- Etsy Open API v3: B 63.4, rank #421 of 1076 · https://www.anchorterminal.com/tools/etsy.min.md
- Walmart Affiliate Marketing API: E 38.6, rank #995 of 1076 · https://www.anchorterminal.com/tools/walmart-affiliate-api.min.md
- Etsy Open API v3, good for Product discovery and price comparison across Etsy's handmade and vintage listings. Ahead on Reliability, 77 against 33; Schema & documentation, 75 against 27; Agent ergonomics, 64 against 57; Payments & pricing, 30 against 25; Maintenance & community, 65 against 5; Transparency & trust, 58 against 53.
- Walmart Affiliate Marketing API, good for Product search and affiliate links for an agent recommending Walmart products and handing the purchase to the person.

| Category | Etsy Open API v3 | Walmart Affiliate Marketing API |
| --- | --- | --- |
| Reliability (16%) | 77 | 33 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 75 | 27 |
| Agent ergonomics (13%) | 64 | 57 |
| Security & auth (14%) | 62 | 58 |
| Payments & pricing (10%) | 30 | 25 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 65 | 5 |
| Transparency & trust (7%) | 58 | 53 |

| Fact (where they differ) | Etsy Open API v3 | Walmart Affiliate Marketing API |
| --- | --- | --- |
| Vendor | Etsy, Inc. | Wal-Mart.com USA, LLC (Walmart Inc.) |
| Hosted endpoint | `https://api.etsy.com/v3` | `https://developer.api.walmart.com/api-proxy/service/affil/product/v2` |
| Auth | OAuth or key | API key |
| Licence | 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 | Proprietary service under the Walmart I/O API Terms of Use (last updated 30 September 2020) |
| Read-only variant documented | no | yes |
| Last release | 2026-10-13 | none |
| Terms last updated | couldn't be read | 2026-09-09 |
| Privacy policy last updated | couldn't be read | 2026-08-20 |
| Customer content may train models | couldn't be read | yes |
| Terms restrict automated access | couldn't be read | yes |
| Terms restrict benchmarking | couldn't be read | not found in the text |
| Terms or service can change without notice | couldn't be read | yes |
| Arbitration or class-action waiver | couldn't be read | yes |