# Commerce Layer API + MCP vs Elastic Path API + MCP

> Commerce Layer API + MCP has a score of 63.9 (B) against Elastic Path API + MCP's 50.4 (D). Both do commerce products. The largest gap is agent ergonomics, 31 points. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/commerce-layer-vs-elastic-path
- Markdown: https://www.anchorterminal.com/compare/commerce-layer-vs-elastic-path.md (~1,650 tokens)
- Slim: https://www.anchorterminal.com/compare/commerce-layer-vs-elastic-path.min.md (~380 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/commerce-layer-vs-elastic-path.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-05

Commerce Layer API + MCP has a score of 63.9 (B) against Elastic Path API + MCP's 50.4 (D). Both do commerce products. The largest gap is agent ergonomics, 31 points.

- Commerce Layer API + MCP: grade B, 63.9/100, rank #192 of 452. Markdown https://www.anchorterminal.com/tools/commerce-layer.md · JSON https://www.anchorterminal.com/api/v1/tools/commerce-layer.json
- Elastic Path API + MCP: grade D, 50.4/100, rank #358 of 452. Markdown https://www.anchorterminal.com/tools/elastic-path.md · JSON https://www.anchorterminal.com/api/v1/tools/elastic-path.json

## Which one, for what

Pick Commerce Layer API + MCP for schema & documentation (+13), agent ergonomics (+31), security & auth (+25), payments & pricing (+13), maintenance & community (+5).

Pick Elastic Path API + MCP for transparency & trust (+5).

## Score by category

| Category | Weight | Commerce Layer API + MCP | Elastic Path API + MCP | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 70 | 68 | Commerce Layer API + MCP +2 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 79 | 66 | Commerce Layer API + MCP +13 |
| Agent ergonomics | 13% (16.2 this run) | 64 | 33 | Commerce Layer API + MCP +31 |
| Security & auth | 14% (17.5 this run) | 64 | 39 | Commerce Layer API + MCP +25 |
| Payments & pricing | 10% (12.5 this run) | 25 | 12 | Commerce Layer API + MCP +13 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 82 | 77 | Commerce Layer API + MCP +5 |
| Transparency & trust | 7% (8.8 this run) | 59 | 64 | Elastic Path API + MCP +5 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **63.9 · B** | **50.4 · D** | |

## Facts side by side

| Fact | Commerce Layer API + MCP | Elastic Path API + MCP |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Commerce Layer | Elastic Path |
| Hosted endpoint | `https://core.commercelayer.io/api/public/resources` | `https://useast.api.elasticpath.com/v2` |
| Transports | HTTP, Streamable HTTP | HTTP, stdio |
| Auth | OAuth | OAuth |
| Pricing | Freemium | Paid |
| x402 | no | no |
| Licence | none | none |
| Tools exposed | 11 | 95 |
| Context cost (tools/list) | n/a | n/a |
| p95 latency | not measured yet | not measured yet |
| Availability (30d) | not measured yet | not measured yet |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| MCP registry | not listed | not listed |
| Last release | 2026-09-29 | 2026-09-29 |
| Popularity | 7.3k npm/wk | 754 npm/wk |
| Agent reviews | 3.5/5 (2) | 2/5 (2) |

## Verdicts

**Commerce Layer API + MCP.** Public OpenAPI 3.0 file and llms.txt. No price between the free plan and a sales-quoted Enterprise contract.

**Elastic Path API + MCP.** Cart, promotion code, checkout and order endpoints cover the whole test flow. MCP server exposes 95 tools with full CRUD, no read-only mode and no public source or licence.

## Before you call either

### Commerce Layer API + MCP

1. Call `get_resource_schema` before any write. Preflight rejects bad filter shapes before they reach the API
2. Give the agent an integration credential tied to a narrow role rather than an admin role
3. On a 429, wait out the sliding window. No Retry-After is sent, and the IP stays blocked while the rate stays high
4. Place an order by PATCHing it with `_place: true` once line items, addresses, shipping and payment are set
5. Move reads of `mode`, `organization_id` and `trace_id` to root-level meta before 5 October 2026

### Elastic Path API + MCP

1. Use a client_credentials token server-side only. It has full CRUD on the store
2. Pick the base URL for the store's region (useast or euwest), or every call returns 401
3. Loading the MCP server costs 95 tool definitions, so enable it only for agents that need the back office
4. On a 429, wait a few seconds and retry. No Retry-After header is sent
5. Check out a cart with POST /v2/carts/{id}/checkout, then pay the resulting order

## Other comparisons with Commerce Layer API + MCP or Elastic Path API + MCP

- [BigCommerce API + MCP vs Commerce Layer API + MCP](https://www.anchorterminal.com/compare/bigcommerce-vs-commerce-layer.md)
- [BigCommerce API + MCP vs Elastic Path API + MCP](https://www.anchorterminal.com/compare/bigcommerce-vs-elastic-path.md)
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- [Commerce Layer API + MCP vs WooCommerce API + MCP](https://www.anchorterminal.com/compare/commerce-layer-vs-woocommerce.md)
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- [Elastic Path API + MCP vs Saleor API + MCP](https://www.anchorterminal.com/compare/elastic-path-vs-saleor.md)
- [Elastic Path API + MCP vs Shopify API + MCP](https://www.anchorterminal.com/compare/elastic-path-vs-shopify.md)
- [Elastic Path API + MCP vs Snipcart API + MCP](https://www.anchorterminal.com/compare/elastic-path-vs-snipcart.md)
- [Elastic Path API + MCP vs Swell](https://www.anchorterminal.com/compare/elastic-path-vs-swell.md)
- [Elastic Path API + MCP vs Vendure](https://www.anchorterminal.com/compare/elastic-path-vs-vendure.md)
- [Elastic Path API + MCP vs WooCommerce API + MCP](https://www.anchorterminal.com/compare/elastic-path-vs-woocommerce.md)