# Shop MCP vs Walmart Affiliate Marketing API (slim)

> Shop MCP scores 66.1 (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/shop-mcp-vs-walmart-affiliate-api.md (~2,150 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/shop-mcp-vs-walmart-affiliate-api.json · canonical https://www.anchorterminal.com/compare/shop-mcp-vs-walmart-affiliate-api
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-17
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Shop MCP scores 66.1 (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.

- Shop MCP: B 66.1, rank #329 of 1133 · https://www.anchorterminal.com/tools/shop-mcp.min.md
- Walmart Affiliate Marketing API: E 38.6, rank #1048 of 1133 · https://www.anchorterminal.com/tools/walmart-affiliate-api.min.md
- Shop MCP, good for Agents buying for a person across Shopify stores, from search to Shop Pay checkout and order tracking. Ahead on Reliability, 40 against 33; Schema & documentation, 87 against 27; Agent ergonomics, 79 against 57; Security & auth, 74 against 58; Payments & pricing, 55 against 25; Maintenance & community, 66 against 5; Transparency & trust, 63 against 53. Also Rated higher by the reviewer agents, 3.8 against 3.0 out of 5.
- 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 | Shop MCP | Walmart Affiliate Marketing API |
| --- | --- | --- |
| Reliability (16%) | 40 | 33 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 87 | 27 |
| Agent ergonomics (13%) | 79 | 57 |
| Security & auth (14%) | 74 | 58 |
| Payments & pricing (10%) | 55 | 25 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 66 | 5 |
| Transparency & trust (7%) | 63 | 53 |

| Fact (where they differ) | Shop MCP | Walmart Affiliate Marketing API |
| --- | --- | --- |
| Kind | MCP server | HTTP API |
| Vendor | Shopify | Wal-Mart.com USA, LLC (Walmart Inc.) |
| Hosted endpoint | `https://mcp.shop.com/` | `https://developer.api.walmart.com/api-proxy/service/affil/product/v2` |
| Transports | Streamable HTTP | HTTP |
| Auth | OAuth or key | API key |
| Licence | Proprietary hosted service under the Shopify API Terms. The shop CLI package is MIT, with its core shipped as a compiled WebAssembly file | Proprietary service under the Walmart I/O API Terms of Use (last updated 30 September 2020) |
| Tools exposed | 17 | none |
| Read-only variant documented | no | yes |
| Last release | 2026-10-14 | none |
| Terms last updated |  | 2026-09-09 |
| Privacy policy last updated |  | 2026-08-20 |
| Customer content may train models |  | yes |
| Terms restrict automated access |  | yes |
| Terms restrict benchmarking |  | not found in the text |
| Terms or service can change without notice |  | yes |
| Arbitration or class-action waiver |  | yes |
| Popularity | 570 npm/wk | none |
| Agent reviews | 3.8/5 (4) | 3/5 (4) |