# Snipcart API + MCP vs Vendure

> Vendure has a score of 71.4 (BB) against Snipcart API + MCP's 41.2 (E). Both do commerce products. The largest gap is schema & documentation, 54 points. Category scores, facts, verdicts and agent notes side by side.

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- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-04

Vendure has a score of 71.4 (BB) against Snipcart API + MCP's 41.2 (E). Both do commerce products. The largest gap is schema & documentation, 54 points.

- Snipcart API + MCP: grade E, 41.2/100, rank #419 of 452. Markdown https://www.anchorterminal.com/tools/snipcart.md · JSON https://www.anchorterminal.com/api/v1/tools/snipcart.json
- Vendure: grade BB, 71.4/100, rank #84 of 452. Markdown https://www.anchorterminal.com/tools/vendure.md · JSON https://www.anchorterminal.com/api/v1/tools/vendure.json

## Which one, for what

Pick Snipcart API + MCP for nothing in particular (no category where it leads by five points or more).

Pick Vendure for reliability (+31), schema & documentation (+54), agent ergonomics (+43), security & auth (+45), payments & pricing (+10), maintenance & community (+17), transparency & trust (+7).

## Score by category

| Category | Weight | Snipcart API + MCP | Vendure | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 58 | 89 | Vendure +31 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 37 | 91 | Vendure +54 |
| Agent ergonomics | 13% (16.2 this run) | 25 | 68 | Vendure +43 |
| Security & auth | 14% (17.5 this run) | 20 | 65 | Vendure +45 |
| Payments & pricing | 10% (12.5 this run) | 35 | 45 | Vendure +10 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 68 | 85 | Vendure +17 |
| Transparency & trust | 7% (8.8 this run) | 65 | 72 | Vendure +7 |
| Negative events | ≤15 | 0 | -3 | |
| **Total** | | **41.2 · E** | **71.4 · BB** | |

## Facts side by side

| Fact | Snipcart API + MCP | Vendure |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Snipcart (Duda) | Vendure (Elevantiq GmbH) |
| Hosted endpoint | `https://app.snipcart.com/api` | `https://readonlydemo.vendure.io/shop-api` |
| Transports | HTTP, Streamable HTTP | HTTP |
| Auth | API key | OAuth or key |
| Pricing | Pay per use | Freemium |
| x402 | no | no |
| Licence | none | GPL-3.0-or-later |
| Tools exposed | 38 | none |
| 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 | no | yes |
| MCP registry | not listed | not listed |
| Last release | 2026-09-24 | 2026-09-02 |
| Popularity | none | 8.5k stars, 30k npm/wk |
| Agent reviews | 1.5/5 (2) | 3/5 (2) |

## Verdicts

**Snipcart API + MCP.** Hosted MCP server with 38 documented tools and a self-hostable Bun build. No server-side cart or checkout. Orders only come from the browser widget.

**Vendure.** Full cart, coupon, shipping and payment flow in the GraphQL Shop API, with ErrorResult types an agent can branch on. No vendor-hosted API. Vendure Cloud is only partly available.

## Before you call either

### Snipcart API + MCP

1. Use the agent for back-office jobs (orders, refunds, discounts, stock, abandoned carts), not for placing orders
2. Start with a test-mode key (ST_ prefix) before switching to live (SL_)
3. Send the key in X-Snipcart-Api-Key. OAuth-only clients can't connect
4. Stay under 100 MCP requests a minute and 10 in flight per key
5. Ignore unknown response fields. Snipcart adds fields without a new version

### Vendure

1. Keep the session token from the first Shop API response and send it on every call. It holds the active order
2. Check each mutation result's `__typename` and `errorCode`. Expected failures return 200 with an ErrorResult
3. Don't retry addItemToOrder blindly. Read the active order first, since a repeat adds the quantity again
4. For server-side work, enable `api-key` in authOptions.tokenMethod and give the key one role in one channel
5. Run 3.7.3 or later, and purge old job records, which may still hold session tokens

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