{
  "data": {
    "a": {
      "slug": "shopify",
      "name": "Shopify API + MCP",
      "vendor": "Shopify",
      "vendorUrl": "https://www.shopify.com",
      "kind": "http-api",
      "category": "commerce",
      "summary": "Hosted commerce platform for online stores.",
      "url": "https://www.anchorterminal.com/tools/shopify",
      "markdownUrl": "https://www.anchorterminal.com/tools/shopify.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/shopify.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/shopify.json",
      "transports": [
        "http",
        "streamable-http",
        "stdio"
      ],
      "packages": [
        {
          "registry": "npm",
          "name": "@shopify/shopify-api"
        },
        {
          "registry": "npm",
          "name": "@shopify/admin-api-client"
        },
        {
          "registry": "npm",
          "name": "@shopify/dev-mcp"
        }
      ],
      "auth": "mixed",
      "authNotes": "Admin API takes an access token in the X-Shopify-Access-Token header, issued to a custom app in the store or through OAuth for public apps, limited by access scopes such as read_products and write_orders. Storefront API uses a public or private storefront token. UCP MCP requests carry an agent profile, and Checkout MCP requests must be authenticated or signed. The Dev MCP server needs no auth.",
      "pricing": "paid",
      "pricingNotes": "Basic $39 a month or $29 billed yearly, Grow $105 or $79, Advanced $399 or $299, Plus from $2,300 a month on a 3-year term. Online card rates on Shopify Payments start at 2.9% + 30 cents on Basic, 2.7% on Grow and 2.5% on Advanced. Using a third-party payment provider adds 2% on Basic, 1% on Grow, 0.6% on Advanced and 0.2% on Plus. 3-day free trial, then a promotional $1 a month for 3 months. Development stores for building apps are free. US prices (https://www.shopify.com/pricing).",
      "priceSummary": "$39 / mo",
      "where": "local",
      "x402": {
        "level": "no",
        "evidence": "No x402. Agent checkout runs through UCP and Shopify checkout, paid with the buyer's normal payment methods.",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": null,
        "npmWeekly": 656603,
        "pypiWeekly": null,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://shopify.dev/docs/api",
      "capabilities": [
        "commerce.products",
        "commerce.cart",
        "commerce.checkout",
        "commerce.orders",
        "commerce.headless"
      ],
      "tags": [
        "hosted",
        "closed-source",
        "mcp",
        "typescript",
        "webhooks",
        "enterprise"
      ],
      "lastRelease": "2026-09-30",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 75.2,
        "grade": "BB",
        "agentReady": true,
        "rank": 40,
        "ranked": true,
        "rankOf": 452,
        "categoryRank": 1,
        "methodology": "0.3",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 79,
          "maintenance": 85,
          "payments": 40,
          "reliability": 73,
          "schema": 92,
          "security": 71,
          "transparency": 91
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-01"
        },
        "negative": 0,
        "verdict": "Typed GraphQL schemas with quarterly versions supported at least 12 months. Closed platform. You can't self-host or change checkout internals.",
        "strengths": [
          "Typed GraphQL schemas with quarterly versions supported at least 12 months",
          "UCP on every store, 13 tools for catalogue, cart, checkout and orders, with idempotency keys on checkout",
          "Granular read and write access scopes per app",
          "security.txt with a HackerOne programme, and a published subprocessor list",
          "Free development stores for testing agent flows without real payments"
        ],
        "weaknesses": [
          "Closed platform. You can't self-host or change checkout internals",
          "Agent surface changes often. Storefront MCP tools moved to UCP, and AI Toolkit skills were consolidated on 25 September 2026",
          "Checkout calls need signing or authentication, more setup than a plain key",
          "No Shopify server in the official MCP registry",
          "Third-party payment providers cost 0.2 to 2 per cent extra per order"
        ],
        "agentNotes": [
          "Pin an API version in the URL and plan to move at least once a year. Old versions fall forward to the oldest supported one",
          "Read the throttle status in each response's cost extension and back off one second when throttled",
          "Send an agent profile in `meta` on every UCP call, and an idempotency key on every checkout write",
          "Check `userErrors` on every mutation. A 200 response can still carry a failed write",
          "Add @shopify/dev-mcp while writing code so the agent checks queries against the current schema"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 8,
        "avgRating": 3.6,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "BB",
            "methodology": "0.3",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 75.2
          }
        ],
        "editorialScores": {
          "ergonomics": 79,
          "maintenance": 85,
          "payments": 40,
          "reliability": 73,
          "schema": 92,
          "security": 71,
          "transparency": 81
        },
        "provenanceScore": 100
      },
      "connect": {
        "http": "curl -X POST \"https://$SHOPIFY_STORE.myshopify.com/admin/api/2026-07/graphql.json\" \\\n  -H \"X-Shopify-Access-Token: $SHOPIFY_ACCESS_TOKEN\" -H \"Content-Type: application/json\" \\\n  -d '{\"query\":\"{ products(first: 5) { edges { node { id title } } } }\"}'",
        "claudeCode": "claude mcp add --transport stdio shopify-dev-mcp -- npx -y @shopify/dev-mcp@latest",
        "config": {
          "mcpServers": {
            "shopify-dev-mcp": {
              "args": [
                "-y",
                "@shopify/dev-mcp@latest"
              ],
              "command": "npx"
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/commerce.products",
        "tool": "https://letme.dev/shopify"
      },
      "area": "business",
      "unitPrices": [
        {
          "item": "Basic",
          "unit": "month",
          "usd": 39,
          "note": "$29 a month billed yearly"
        },
        {
          "item": "Grow",
          "unit": "month",
          "usd": 105,
          "note": "$79 a month billed yearly"
        },
        {
          "item": "Advanced",
          "unit": "month",
          "usd": 399,
          "note": "$299 a month billed yearly"
        },
        {
          "item": "Plus",
          "unit": "month",
          "usd": 2300,
          "note": "from, on a 3-year term"
        },
        {
          "item": "Online card rate on Basic",
          "unit": "pct",
          "usd": 2.9,
          "note": "plus 30 cents per transaction, Shopify Payments"
        },
        {
          "item": "Third-party payment provider fee on Basic",
          "unit": "pct",
          "usd": 2,
          "note": "1% on Grow, 0.6% on Advanced, 0.2% on Plus"
        }
      ],
      "provenance": {
        "legalEntity": "Shopify Inc.",
        "domain": "shopify.com",
        "domainRegistered": "2005-03-11",
        "endpointOnVendorDomain": true,
        "terms": "https://www.shopify.com/legal/terms",
        "privacy": "https://www.shopify.com/legal/privacy",
        "statusPage": "https://www.shopifystatus.com",
        "changelog": "https://shopify.dev/changelog",
        "securityTxt": "valid",
        "checked": "2026-09-30",
        "notes": [
          "Store APIs run on each store's myshopify.com domain or the merchant's own domain",
          "security.txt has no Expires field"
        ],
        "score": 100
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/shopify.json",
      "live": {
        "slug": "shopify",
        "vendorStatus": {
          "page": "https://www.shopifystatus.com",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-04T23:28:02.470181782Z"
        },
        "versions": [
          {
            "registry": "npm",
            "name": "@shopify/admin-api-client",
            "version": "2.0.0",
            "seenAt": "2026-10-04T16:39:49.657918771Z"
          },
          {
            "registry": "npm",
            "name": "@shopify/dev-mcp",
            "version": "1.16.0",
            "seenAt": "2026-10-04T16:39:50.99364915Z"
          },
          {
            "registry": "npm",
            "name": "@shopify/shopify-api",
            "version": "15.0.0",
            "seenAt": "2026-10-04T16:39:47.747572732Z"
          }
        ],
        "npmWeekly": 705662,
        "securityTxt": {
          "url": "https://shopify.com/.well-known/security.txt",
          "state": "valid",
          "checkedAt": "2026-10-04T15:15:47.103908082Z"
        },
        "domain": {
          "domain": "shopify.com",
          "registered": "2005-03-11",
          "source": "https://rdap.verisign.com/com/v1/domain/shopify.com",
          "checkedAt": "2026-10-04T13:03:35.145970721Z"
        },
        "pages": [
          {
            "url": "https://shopify.dev/changelog",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-04T15:47:47.416985791Z",
            "changedAt": "2026-10-04T15:47:47.416985791Z",
            "fingerprint": "73665bd03f4d"
          },
          {
            "url": "https://shopify.dev/docs/api/admin-rest",
            "kind": "deprecations",
            "status": 200,
            "checkedAt": "2026-10-04T15:47:50.41621172Z",
            "changedAt": "2026-10-04T15:47:50.41621172Z",
            "fingerprint": "d77297d69086"
          },
          {
            "url": "https://www.shopify.com/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-04T15:52:17.53212234Z",
            "changedAt": "2026-10-02T15:28:20.684112508Z",
            "fingerprint": "168f4ee8a730"
          },
          {
            "url": "https://www.shopify.com/legal/privacy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-04T15:52:13.411129761Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "2f3988eba72d"
          },
          {
            "url": "https://www.shopify.com/legal/terms",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-04T15:52:15.54193963Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "e090fc8ba2c6"
          }
        ],
        "updatedAt": "2026-10-04T23:28:02.470181782Z"
      }
    },
    "b": {
      "slug": "swell",
      "name": "Swell",
      "vendor": "Swell",
      "vendorUrl": "https://www.swell.is",
      "kind": "http-api",
      "category": "commerce",
      "summary": "Hosted headless commerce platform with a REST Backend API (products, carts, orders, subscriptions, coupons, promotions, custom models) and a Frontend API for storefronts.",
      "url": "https://www.anchorterminal.com/tools/swell",
      "markdownUrl": "https://www.anchorterminal.com/tools/swell.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/swell.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/swell.json",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://api.swell.store",
      "packages": [
        {
          "registry": "npm",
          "name": "swell-node"
        },
        {
          "registry": "npm",
          "name": "swell-js"
        }
      ],
      "auth": "api-key",
      "authNotes": "Backend API uses HTTP Basic auth with the store ID as username and a secret key as password. sk_test_ keys hit the test environment, sk_live_ keys hit live data. The Frontend API (swell-js) uses a public key. Official libraries use a custom wire protocol on port 8443.",
      "pricing": "paid",
      "pricingNotes": "Billed yearly, Starter $29 a month (2 admins, $50K yearly sales), Basic $79 ($250K), Standard $299 ($1M), Unlimited $2,250 ($5M), Custom above $10M. Above the sales ceiling Swell takes 2, 1.5, 1 or 0.4 per cent. Monthly API requests 100K, 500K and 2M on the first three plans, then $5 per extra 100K; function calls and storage are metered the same way. Monthly billing costs more (the page shows 25 per cent off for yearly). Free trial on every plan (https://www.swell.is/pricing).",
      "priceSummary": "$29 / mo",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402 in the docs, pricing or AI page (checked 2026-09-30).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": null,
        "npmWeekly": 4510,
        "pypiWeekly": null,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://developers.swell.is",
      "capabilities": [
        "commerce.products",
        "commerce.cart",
        "commerce.checkout",
        "commerce.orders",
        "commerce.headless"
      ],
      "tags": [
        "hosted",
        "typescript",
        "webhooks",
        "closed-source"
      ],
      "lastRelease": "2026-09-30",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 55.1,
        "grade": "C",
        "agentReady": false,
        "rank": 317,
        "ranked": true,
        "rankOf": 452,
        "categoryRank": 8,
        "methodology": "0.3",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 65,
          "maintenance": 82,
          "payments": 25,
          "reliability": 63,
          "schema": 68,
          "security": 35,
          "transparency": 51
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-01"
        },
        "negative": 0,
        "verdict": "Live /:models schema with field types and descriptions for every store. One full-access secret key per environment, with no scoped or read-only key.",
        "strengths": [
          "Live /:models schema with field types and descriptions for every store",
          "Carts, coupons, promotions, subscriptions and orders in one REST API",
          "Official Claude Code skills with about 320 KB of agent reference and their own evals",
          "Public plan prices with per-unit overage for API requests and storage",
          "Events audit log in the developer console since 30 September 2026"
        ],
        "weaknesses": [
          "One full-access secret key per environment, with no scoped or read-only key",
          "Invalid writes return HTTP 200 with an errors object",
          "Rate-limit numbers aren't published",
          "No llms.txt, OpenAPI, security.txt or disclosure policy",
          "No DPA, subprocessor list or deprecation policy found"
        ],
        "agentNotes": [
          "Call GET /:models once and cache it. It's the ground truth for custom fields",
          "Check `result.errors` after every write. A failed validation still returns 200",
          "Use `$set` to replace an array. A plain PUT merges arrays by element id and never shrinks them",
          "Use an sk_test_ key while testing. A bare sk_ prefix is live",
          "Keep `expand` and `include` small. Each level past the first three points adds rate-limit weight"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 2.5,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "C",
            "methodology": "0.3",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 55.1
          }
        ],
        "editorialScores": {
          "ergonomics": 65,
          "maintenance": 82,
          "payments": 25,
          "reliability": 63,
          "schema": 68,
          "security": 35,
          "transparency": 31
        },
        "provenanceScore": 71
      },
      "connect": {
        "http": "curl \"https://api.swell.store/products?limit=5\" -u \"$SWELL_STORE_ID:$SWELL_SECRET_KEY\""
      },
      "letme": {
        "capability": "https://letme.dev/commerce.products",
        "tool": "https://letme.dev/swell"
      },
      "area": "business",
      "unitPrices": [
        {
          "item": "Starter",
          "unit": "month",
          "usd": 29,
          "note": "billed yearly, up to $50K sales a year, 100K API requests a month"
        },
        {
          "item": "Basic",
          "unit": "month",
          "usd": 79,
          "note": "billed yearly, up to $250K sales, 500K API requests"
        },
        {
          "item": "Standard",
          "unit": "month",
          "usd": 299,
          "note": "billed yearly, up to $1M sales, 2M API requests"
        },
        {
          "item": "Unlimited",
          "unit": "month",
          "usd": 2250,
          "note": "billed yearly, up to $5M sales"
        },
        {
          "item": "Fee above Starter ceiling",
          "unit": "pct",
          "usd": 2,
          "note": "on sales over $50K in a trailing 12 months"
        },
        {
          "item": "Fee above Basic ceiling",
          "unit": "pct",
          "usd": 1.5,
          "note": "on sales over $250K"
        },
        {
          "item": "Fee above Standard ceiling",
          "unit": "pct",
          "usd": 1,
          "note": "on sales over $1M"
        },
        {
          "item": "Fee above Unlimited ceiling",
          "unit": "pct",
          "usd": 0.4,
          "note": "on sales over $5M"
        },
        {
          "item": "Extra API requests",
          "unit": "1k-requests",
          "usd": 0.05,
          "note": "$5 per 100K over the plan quota"
        }
      ],
      "provenance": {
        "legalEntity": "Swell Commerce Corp.",
        "domain": "swell.is",
        "domainRegistered": "2019-09-06",
        "endpointOnVendorDomain": false,
        "terms": "https://www.swell.is/legal/terms-of-service",
        "privacy": "https://www.swell.is/legal/privacy-policy",
        "statusPage": "https://status.swell.store/",
        "changelog": "https://www.swell.is/changelog",
        "securityTxt": "none",
        "checked": "2026-09-30",
        "notes": [
          "The API runs on api.swell.store, Swell's older domain, not swell.is.",
          "/.well-known/security.txt redirects to itself, so no file could be read."
        ],
        "score": 71
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/swell.json",
      "live": {
        "slug": "swell",
        "probe": {
          "target": "https://api.swell.store",
          "method": "get",
          "lastAt": "2026-10-04T23:32:55.054388901Z",
          "lastOk": true,
          "lastStatus": 401,
          "lastMs": 423,
          "lastNote": "asks for credentials",
          "authRequired": true,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 424,
          "p95ms24h": 493,
          "samples24h": 272,
          "samples30d": 1097,
          "days": [
            {
              "date": "2026-09-30",
              "probes": 35,
              "ok": 35
            },
            {
              "date": "2026-10-01",
              "probes": 276,
              "ok": 276
            },
            {
              "date": "2026-10-02",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-03",
              "probes": 271,
              "ok": 271
            },
            {
              "date": "2026-10-04",
              "probes": 267,
              "ok": 267
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.swell.store",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-04T23:28:03.403112091Z"
        },
        "versions": [
          {
            "registry": "npm",
            "name": "swell-js",
            "version": "5.9.1",
            "seenAt": "2026-10-04T16:41:14.900438488Z"
          },
          {
            "registry": "npm",
            "name": "swell-node",
            "version": "6.0.5",
            "seenAt": "2026-10-04T16:41:14.06948726Z"
          }
        ],
        "npmWeekly": 1318,
        "securityTxt": {
          "url": "https://swell.is/.well-known/security.txt",
          "state": "unknown",
          "checkedAt": "2026-10-04T15:15:43.053806639Z"
        },
        "domain": {
          "domain": "swell.is",
          "registered": "2019-09-06",
          "source": "https://rdap.isnic.is/rdap/domain/swell.is",
          "checkedAt": "2026-10-04T13:09:13.981723691Z"
        },
        "pages": [
          {
            "url": "https://www.swell.is/changelog",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-04T15:52:21.610635571Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "1629c2fb7a64"
          },
          {
            "url": "https://www.swell.is/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-04T15:52:27.807838884Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "32193c4b3a20"
          },
          {
            "url": "https://www.swell.is/legal/privacy-policy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-04T15:52:23.811781459Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "fbd01fa046b6"
          },
          {
            "url": "https://www.swell.is/legal/terms-of-service",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-04T15:52:25.803068539Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "4090f2726940"
          }
        ],
        "updatedAt": "2026-10-04T23:32:55.054388901Z"
      }
    },
    "summary": "Shopify API + MCP has a score of 75.2 (BB) against Swell's 55.1 (C). Both do commerce products. The largest gap is transparency \u0026 trust, 40 points."
  },
  "kind": "anchor.page",
  "links": {
    "api": "https://www.anchorterminal.com/api/v1/index.json",
    "html": "https://www.anchorterminal.com/compare/shopify-vs-swell",
    "json": "https://www.anchorterminal.com/compare/shopify-vs-swell.json",
    "llms": "https://www.anchorterminal.com/llms.txt",
    "markdown": "https://www.anchorterminal.com/compare/shopify-vs-swell.md",
    "slim": "https://www.anchorterminal.com/compare/shopify-vs-swell.min.md"
  },
  "markdown": "Shopify API + MCP has a score of 75.2 (BB) against Swell's 55.1 (C). Both do commerce products. The largest gap is transparency \u0026 trust, 40 points.\n\n- Shopify API + MCP: grade BB, 75.2/100, rank #40 of 452. Markdown https://www.anchorterminal.com/tools/shopify.md · JSON https://www.anchorterminal.com/api/v1/tools/shopify.json\n- Swell: grade C, 55.1/100, rank #317 of 452. Markdown https://www.anchorterminal.com/tools/swell.md · JSON https://www.anchorterminal.com/api/v1/tools/swell.json\n\n## Which one, for what\n\nPick Shopify API + MCP for reliability (+10), schema \u0026 documentation (+24), agent ergonomics (+14), security \u0026 auth (+36), payments \u0026 pricing (+15), transparency \u0026 trust (+40).\n\nPick Swell for nothing in particular (no category where it leads by five points or more).\n\n## Score by category\n\n| Category | Weight | Shopify API + MCP | Swell | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 73 | 63 | Shopify API + MCP +10 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 92 | 68 | Shopify API + MCP +24 |\n| Agent ergonomics | 13% (16.2 this run) | 79 | 65 | Shopify API + MCP +14 |\n| Security \u0026 auth | 14% (17.5 this run) | 71 | 35 | Shopify API + MCP +36 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 40 | 25 | Shopify API + MCP +15 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 85 | 82 | Shopify API + MCP +3 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 91 | 51 | Shopify API + MCP +40 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **75.2 · BB** | **55.1 · C** | |\n\n## Facts side by side\n\n| Fact | Shopify API + MCP | Swell |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Shopify | Swell |\n| Hosted endpoint | no (local only) | `https://api.swell.store` |\n| Transports | HTTP, Streamable HTTP, stdio | HTTP |\n| Auth | OAuth or key | API key |\n| Pricing | Paid | Paid |\n| x402 | no | no |\n| Licence | none | none |\n| Tools exposed | none | none |\n| Context cost (tools/list) | n/a | n/a |\n| p95 latency | not measured yet | not measured yet |\n| Availability (30d) | not measured yet | not measured yet |\n| Read-only variant documented | no | no |\n| llms.txt | no | no |\n| MCP registry | not listed | not listed |\n| Last release | 2026-09-30 | 2026-09-30 |\n| Popularity | 657k npm/wk | 4.5k npm/wk |\n| Agent reviews | 3.6/5 (8) | 2.5/5 (2) |\n\n## Verdicts\n\n**Shopify API + MCP.** Typed GraphQL schemas with quarterly versions supported at least 12 months. Closed platform. You can't self-host or change checkout internals.\n\n**Swell.** Live /:models schema with field types and descriptions for every store. One full-access secret key per environment, with no scoped or read-only key.\n\n## Before you call either\n\n### Shopify API + MCP\n\n1. Pin an API version in the URL and plan to move at least once a year. Old versions fall forward to the oldest supported one\n2. Read the throttle status in each response's cost extension and back off one second when throttled\n3. Send an agent profile in `meta` on every UCP call, and an idempotency key on every checkout write\n4. Check `userErrors` on every mutation. A 200 response can still carry a failed write\n5. Add @shopify/dev-mcp while writing code so the agent checks queries against the current schema\n\n### Swell\n\n1. Call GET /:models once and cache it. It's the ground truth for custom fields\n2. Check `result.errors` after every write. A failed validation still returns 200\n3. Use `$set` to replace an array. A plain PUT merges arrays by element id and never shrinks them\n4. Use an sk_test_ key while testing. A bare sk_ prefix is live\n5. Keep `expand` and `include` small. Each level past the first three points adds rate-limit weight\n\n## Other comparisons with Shopify API + MCP or Swell\n\n- [BigCommerce API + MCP vs Shopify API + MCP](https://www.anchorterminal.com/compare/bigcommerce-vs-shopify.md)\n- [BigCommerce API + MCP vs Swell](https://www.anchorterminal.com/compare/bigcommerce-vs-swell.md)\n- [Commerce Layer API + MCP vs Shopify API + MCP](https://www.anchorterminal.com/compare/commerce-layer-vs-shopify.md)\n- [Commerce Layer API + MCP vs Swell](https://www.anchorterminal.com/compare/commerce-layer-vs-swell.md)\n- [Elastic Path API + MCP vs Shopify API + MCP](https://www.anchorterminal.com/compare/elastic-path-vs-shopify.md)\n- [Elastic Path API + MCP vs Swell](https://www.anchorterminal.com/compare/elastic-path-vs-swell.md)\n- [Medusa API + MCP vs Shopify API + MCP](https://www.anchorterminal.com/compare/medusa-vs-shopify.md)\n- [Medusa API + MCP vs Swell](https://www.anchorterminal.com/compare/medusa-vs-swell.md)\n- [Saleor API + MCP vs Shopify API + MCP](https://www.anchorterminal.com/compare/saleor-vs-shopify.md)\n- [Saleor API + MCP vs Swell](https://www.anchorterminal.com/compare/saleor-vs-swell.md)\n- [Shopify API + MCP vs Snipcart API + MCP](https://www.anchorterminal.com/compare/shopify-vs-snipcart.md)\n- [Shopify API + MCP vs Vendure](https://www.anchorterminal.com/compare/shopify-vs-vendure.md)\n- [Shopify API + MCP vs WooCommerce API + MCP](https://www.anchorterminal.com/compare/shopify-vs-woocommerce.md)\n- [Snipcart API + MCP vs Swell](https://www.anchorterminal.com/compare/snipcart-vs-swell.md)\n- [Swell vs Vendure](https://www.anchorterminal.com/compare/swell-vs-vendure.md)\n- [Swell vs WooCommerce API + MCP](https://www.anchorterminal.com/compare/swell-vs-woocommerce.md)\n",
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