{ "data": { "a": { "slug": "snipcart", "name": "Snipcart API + MCP", "vendor": "Snipcart (Duda)", "vendorUrl": "https://snipcart.com", "kind": "http-api", "category": "commerce", "summary": "Cart and checkout you add to any website with HTML attributes and a JavaScript widget.", "url": "https://www.anchorterminal.com/tools/snipcart", "markdownUrl": "https://www.anchorterminal.com/tools/snipcart.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/snipcart.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/snipcart.json", "transports": [ "http", "streamable-http" ], "remoteUrl": "https://app.snipcart.com/api", "packages": [], "auth": "api-key", "authNotes": "HTTP Basic with a secret API key as username and an empty password. Keys are made in Test or Live mode and only see that mode's data. The MCP server takes the same key in a custom X-Snipcart-Api-Key header; no OAuth, so web clients that need OAuth or a bearer header (Claude.ai web, ChatGPT web) can't connect.", "pricing": "usage", "pricingNotes": "2 per cent of sales plus your payment gateway's fees. Stores under $1,000 in monthly sales pay a flat $20 a month instead. Test mode is free with no card. A Custom plan is billed monthly at a set fee (https://snipcart.com/pricing).", "priceSummary": "2% fee", "where": "hosted", "x402": { "level": "no", "evidence": "No x402 in docs or pricing (checked 2026-09-30).", "endpoints": [] }, "toolCount": 38, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-09-30" }, "docsUrl": "https://docs.snipcart.com/v3/", "capabilities": [ "commerce.products", "commerce.orders", "commerce.checkout", "commerce.headless" ], "tags": [ "hosted", "mcp", "no-card", "webhooks", "closed-source" ], "lastRelease": "2026-09-24", "graded": true, "anchor": { "graded": true, "score": 40.8, "grade": "E", "agentReady": false, "rank": 595, "ranked": true, "rankOf": 629, "categoryRank": 13, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 25, "maintenance": 68, "payments": 35, "reliability": 58, "schema": 37, "security": 20, "transparency": 60 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "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.", "bestFor": "Static-site merchants who want an agent to handle orders, refunds and coupons.", "strengths": [ "Hosted MCP server with 38 documented tools and a self-hostable Bun build", "Free test mode with no card, and separate test and live keys", "Public pricing, 2 per cent of sales or $20 a month for small stores", "Release notes every two to four weeks, six since 13 July 2026", "Uptime history kept in a public GitHub repo" ], "weaknesses": [ "No server-side cart or checkout. Orders only come from the browser widget", "One full-access key per mode, with no OAuth, scopes or read-only keys", "Refund and archive tools have no documented confirmation or annotations", "No OpenAPI, llms.txt, security.txt or disclosure contact", "The status page doesn't check the API path or the MCP endpoint" ], "agentNotes": [ "Use the agent for back-office jobs (orders, refunds, discounts, stock, abandoned carts), not for placing orders", "Start with a test-mode key (ST_ prefix) before switching to live (SL_)", "Send the key in X-Snipcart-Api-Key. OAuth-only clients can't connect", "Stay under 100 MCP requests a minute and 10 in flight per key", "Ignore unknown response fields. Snipcart adds fields without a new version" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 1.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "E", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 40.8 } ], "editorialScores": { "ergonomics": 25, "maintenance": 68, "payments": 35, "reliability": 58, "schema": 37, "security": 20, "transparency": 39 }, "provenanceScore": 81 }, "connect": { "http": "curl -H \"Accept: application/json\" https://app.snipcart.com/api/orders -u \"$SNIPCART_SECRET_KEY:\"", "claudeCode": "claude mcp add --transport http snipcart https://ai.snipcart.com/mcp --header \"X-Snipcart-Api-Key: $SNIPCART_SECRET_KEY\"", "config": { "mcpServers": { "snipcart": { "headers": { "X-Snipcart-Api-Key": "${SNIPCART_SECRET_KEY}" }, "url": "https://ai.snipcart.com/mcp" } } } }, "letme": { "capability": "https://letme.dev/commerce.products", "tool": "https://letme.dev/snipcart" }, "area": "business", "unitPrices": [ { "item": "Transaction fee", "unit": "pct", "usd": 2, "note": "of sales, plus payment gateway fees" }, { "item": "Small-store minimum", "unit": "month", "usd": 20, "note": "charged instead of 2 per cent when monthly sales are under $1,000" } ], "provenance": { "legalEntity": "Snipcart inc.", "domain": "snipcart.com", "domainRegistered": "2013-01-10", "endpointOnVendorDomain": true, "terms": "https://snipcart.com/terms-of-service", "privacy": "https://snipcart.com/terms-of-service", "statusPage": "https://status.snipcart.com/", "changelog": "https://docs.snipcart.com/v3/release-notes", "securityTxt": "none", "checked": "2026-09-30", "notes": [ "The privacy policy is a section of the terms page; there is no separate privacy URL.", "Snipcart inc. is a Canadian company owned by Duda since 2021." ], "score": 81 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/snipcart.json", "live": { "slug": "snipcart", "probe": { "target": "https://app.snipcart.com/api", "method": "get", "lastAt": "2026-10-08T19:08:58.745076403Z", "lastOk": true, "lastStatus": 404, "lastMs": 367, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 369, "p95ms24h": 572, "samples24h": 272, "samples30d": 2135, "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": 272, "ok": 272 }, { "date": "2026-10-05", "probes": 272, "ok": 272 }, { "date": "2026-10-06", "probes": 272, "ok": 272 }, { "date": "2026-10-07", "probes": 272, "ok": 272 }, { "date": "2026-10-08", "probes": 217, "ok": 217 } ] }, "vendorStatus": { "page": "https://status.snipcart.com", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-08T17:51:13.088994967Z" }, "securityTxt": { "url": "https://snipcart.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-08T15:38:53.750963612Z" }, "domain": { "domain": "snipcart.com", "registered": "2013-01-10", "source": "https://rdap.verisign.com/com/v1/domain/snipcart.com", "checkedAt": "2026-10-04T13:10:50.326878421Z" }, "pages": [ { "url": "https://docs.snipcart.com/v3/release-notes", "kind": "changelog", "status": 200, "checkedAt": "2026-10-08T18:19:27.49912012Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "9f3bede5787c" }, { "url": "https://snipcart.com/pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-10-08T18:24:26.324483884Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "807106c17a22" }, { "url": "https://snipcart.com/terms-of-service", "kind": "terms", "status": 304, "checkedAt": "2026-10-08T18:24:28.480542186Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "2ee2028c28bd" } ], "updatedAt": "2026-10-08T19:08:58.745076403Z" } }, "answer": "Square scores 69.2 (B) on agent readiness against Snipcart API + MCP's 40.8 (E), and leads in 6 of 7 scored categories.", "b": { "slug": "square", "name": "Square", "vendor": "Block, Inc.", "vendorUrl": "https://squareup.com", "kind": "http-api", "category": "commerce", "summary": "Square is Block's commerce and payments platform for sellers. Its REST API covers catalogue, orders, payment links, payments, inventory and customers, with seven SDKs and a beta MCP server hosted at mcp.squareup.com.", "url": "https://www.anchorterminal.com/tools/square", "markdownUrl": "https://www.anchorterminal.com/tools/square.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/square.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/square.json", "repo": "https://github.com/square/square-mcp-server", "license": "Proprietary service under the Square Developer Terms of Service. The MCP server and the OpenAPI specification on GitHub are Apache 2.0, and the Node.js SDK is MIT", "transports": [ "http", "streamable-http", "stdio" ], "remoteUrl": "https://mcp.squareup.com/mcp", "packages": [ { "registry": "npm", "name": "square" }, { "registry": "npm", "name": "square-mcp-server" }, { "registry": "pypi", "name": "squareup" } ], "auth": "mixed", "authNotes": "Access needs a Square account and an application created in the Developer Console, both self-serve. Two token types go in the `Authorization: Bearer` header. A personal access token gives unrestricted access to the owner's own account, with a separate sandbox token. OAuth access tokens are limited to the scopes a seller grants, expire after 30 days and can be refreshed and revoked. The remote MCP server signs in through OAuth, and Square keeps an allowlist of MCP clients that may register.", "pricing": "usage", "pricingNotes": "The API and sandbox carry no charge. Sellers pay processing fees, 2.9% + 30 cents for card payments through the payments APIs in the US. Square Free is $0 a month, Plus $49 and Premium $149 per location. The sandbox lets an agent start without a contract (https://squareup.com/us/en/payments/our-fees, checked 2026-10-08).", "priceSummary": "2.9% fee", "where": "both", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the docs index at developer.squareup.com/llms.txt or the OpenAPI spec (checked 2026-10-08).", "endpoints": [] }, "toolCount": 3, "popularity": { "githubStars": null, "npmWeekly": 453743, "pypiWeekly": 72138, "asOf": "2026-10-08" }, "docsUrl": "https://developer.squareup.com/docs", "llmsTxt": "https://developer.squareup.com/llms.txt", "openapi": "https://raw.githubusercontent.com/square/connect-api-specification/master/api.json", "capabilities": [ "commerce.products", "commerce.orders", "commerce.checkout", "commerce.cart", "commerce.headless", "payments.card", "payments.checkout" ], "tags": [ "hosted", "closed-source", "mcp", "oauth", "openapi", "llms-txt", "webhooks", "sandbox", "graphql", "typescript", "python", "status-page", "bug-bounty" ], "lastRelease": "2026-09-16", "graded": true, "anchor": { "graded": true, "score": 69.2, "grade": "B", "agentReady": false, "rank": 156, "ranked": true, "rankOf": 629, "categoryRank": 6, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 83, "maintenance": 81, "payments": 40, "reliability": 58, "schema": 87, "security": 67, "transparency": 70 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-08" }, "negative": 0, "verdict": "The REST API has a public OpenAPI 3.0 spec, OAuth scopes split by read and write for each resource, idempotency keys on writes and a free sandbox. The MCP server is in beta and its remote instance reaches production only. No numeric REST rate limits or SLA were found, and the status page recorded widespread errors on 27 September 2026.", "bestFor": "Agents working for a seller already on Square, on catalogue, inventory, orders, payment links and customers, online and in person.", "strengths": [ "Public OpenAPI 3.0 spec with 332 operations and 1,476 schemas, regenerated for API version 2026-09-16", "OAuth scopes are split by read and write for each resource, and access tokens expire after 30 days", "78 request schemas carry an `idempotency_key`, and the docs describe backoff with jitter for 429 responses", "Free sandbox at connect.squareupsandbox.com with test cards, and API Logs kept for 28 days", "Deprecated APIs are typically retired at least 12 months after deprecation, with dated release notes each month" ], "weaknesses": [ "The MCP server is marked beta, and the remote server reaches production data only", "No numeric rate limits were found for the REST API. Only GraphQL states a figure, 10 queries a second", "No SLA was found in the developer terms or documentation", "The status page recorded widespread latency and errors on 27 September 2026, including payment authorisation", "A personal access token grants unrestricted access to the whole Square account", "97 of the 332 operations in the spec are marked beta" ], "agentNotes": [ "Test against the sandbox first with the local MCP server and `SANDBOX=true`. The remote server at mcp.squareup.com reaches production only", "Set `DISALLOW_WRITES=true` on the local MCP server when the task only reads", "Call `get_service_info`, then `get_type_info`, before each `make_api_request`. The request body is otherwise untyped", "Send a fresh `idempotency_key` on every write, and reuse it when retrying the same write", "Pin `Square-Version` in each request. Use a page cursor within 5 minutes of receiving it" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 69.2 } ], "editorialScores": { "ergonomics": 83, "maintenance": 81, "payments": 40, "reliability": 58, "schema": 87, "security": 67, "transparency": 56 }, "provenanceScore": 84 }, "connect": { "install": "npx square-mcp-server start", "http": "curl https://connect.squareupsandbox.com/v2/locations \\\n -H 'Square-Version: 2026-09-16' \\\n -H 'Authorization: Bearer {SANDBOX_ACCESS_TOKEN}' \\\n -H 'Content-Type: application/json'", "config": { "mcpServers": { "mcp_square_api": { "args": [ "mcp-remote", "https://mcp.squareup.com/mcp" ], "command": "npx" } } } }, "letme": { "capability": "https://letme.dev/commerce.products", "tool": "https://letme.dev/square" }, "area": "business", "unitPrices": [ { "item": "Card payment through the payments APIs (US)", "unit": "pct", "usd": 2.9, "note": "plus 30 cents per transaction" }, { "item": "ACH bank transfer through the API (US)", "unit": "pct", "usd": 1, "note": "$1 minimum, $5 fee cap" }, { "item": "Square Free", "unit": "month", "usd": 0, "note": "per location" }, { "item": "Square Plus", "unit": "month", "usd": 49, "note": "per location" }, { "item": "Square Premium", "unit": "month", "usd": 149, "note": "per location" } ], "provenance": { "legalEntity": "Block, Inc.", "domain": "squareup.com", "domainRegistered": "2007-05-26", "endpointOnVendorDomain": true, "terms": "https://squareup.com/us/en/legal/general/developers", "privacy": "https://squareup.com/us/en/legal/general/privacy", "statusPage": "https://www.issquareup.com", "changelog": "https://developer.squareup.com/docs/changelog/connect", "securityTxt": "none", "checked": "2026-10-08", "notes": [ "The Square Developer Terms of Service (last updated 10 September 2026) are an agreement with Block, Inc. and govern the APIs, SDKs and developer tools. Payment processing through an API is also subject to Square's General Terms.", "The Privacy Notice for Square Sellers and Website Visitors (last updated 15 September 2026) names Block, Inc., 1955 Broadway, Suite 600, Oakland, CA 94612 as the entity for US sellers, with other Square entities for Canada, Japan, Australia and the EU.", "The API answers at connect.squareup.com and the remote MCP server at mcp.squareup.com. The sandbox uses the separate domain squareupsandbox.com.", "squareup.com/.well-known/security.txt and developer.squareup.com/.well-known/security.txt return 404. The security page links a Bugcrowd programme.", "RDAP for squareup.com gives a registration date of 2007-05-26." ], "score": 84 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/square.json", "live": { "slug": "square", "probe": { "target": "https://mcp.squareup.com/mcp", "method": "get", "lastAt": "2026-10-08T19:08:59.27689094Z", "lastOk": true, "lastStatus": 401, "lastMs": 59, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 80, "p95ms24h": 137, "samples24h": 19, "samples30d": 19, "days": [ { "date": "2026-10-08", "probes": 19, "ok": 19 } ] }, "vendorStatus": { "page": "https://www.issquareup.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-08T19:06:59.998723569Z" }, "pages": [ { "url": "https://developer.squareup.com/docs/changelog/connect", "kind": "changelog", "status": 200, "checkedAt": "2026-10-08T18:17:18.308620553Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "62494a1dd472" }, { "url": "https://squareup.com/us/en/legal/general/privacy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-08T18:24:44.136652202Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "18b57fb2f3f3" }, { "url": "https://squareup.com/us/en/legal/general/developers", "kind": "terms", "status": 200, "checkedAt": "2026-10-08T18:24:40.889937356Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "10ccc5457da5" } ], "updatedAt": "2026-10-08T19:08:59.27689094Z" } }, "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "Snipcart (Duda)", "b": "Block, Inc.", "name": "Vendor" }, { "a": "https://app.snipcart.com/api", "b": "https://mcp.squareup.com/mcp", "name": "Hosted endpoint" }, { "a": "HTTP, Streamable HTTP", "b": "HTTP, Streamable HTTP, stdio", "name": "Transports" }, { "a": "API key", "b": "OAuth or key", "name": "Auth" }, { "a": "Pay per use", "b": "Pay per use", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "none", "b": "Proprietary service under the Square Developer Terms of Service. The MCP server and the OpenAPI specification on GitHub are Apache 2.0, and the Node.js SDK is MIT", "name": "Licence" }, { "a": "38", "b": "3", "name": "Tools exposed" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "no", "b": "yes", "name": "llms.txt" }, { "a": "2026-09-24", "b": "2026-09-16", "name": "Last release" }, { "a": "no date given", "b": "2026-09-10", "name": "Terms last updated" }, { "a": "no date given", "b": "2026-09-15", "name": "Privacy policy last updated" }, { "a": "not found in the text", "b": "not found in the text", "name": "Customer content may train models" }, { "a": "not found in the text", "b": "yes", "name": "Terms restrict automated access" }, { "a": "not found in the text", "b": "yes", "name": "Terms restrict benchmarking" }, { "a": "not found in the text", "b": "not found in the text", "name": "Terms or service can change without notice" }, { "a": "not found in the text", "b": "yes", "name": "Arbitration or class-action waiver" }, { "a": "none", "b": "454k npm/wk, 72k PyPI/wk", "name": "Popularity" }, { "a": "1.5/5 (2)", "b": "none", "name": "Agent reviews" } ], "faq": [ { "answer": "Square scores 69.2 (B) on agent readiness against Snipcart API + MCP's 40.8 (E), and leads in 6 of 7 scored categories.", "question": "Which is better for AI agents, Snipcart API + MCP or Square?" }, { "answer": "Snipcart API + MCP needs an API key. Square takes an API key or an OAuth sign-in.", "question": "Do Snipcart API + MCP and Square need an API key?" }, { "answer": "Yes. Snipcart API + MCP has a hosted endpoint at https://app.snipcart.com/api and Square at https://mcp.squareup.com/mcp.", "question": "Can an agent call Snipcart API + MCP and Square without installing anything?" } ], "goodFor": [ { "aheadOn": null, "also": [ "Free to start without a card" ], "goodFor": "Static-site merchants who want an agent to handle orders, refunds and coupons.", "slug": "snipcart", "watchFor": "No server-side cart or checkout. Orders only come from the browser widget" }, { "aheadOn": [ "Schema \u0026 documentation, 87 against 37", "Agent ergonomics, 83 against 25", "Security \u0026 auth, 67 against 20", "Payments \u0026 pricing, 40 against 35", "Maintenance \u0026 community, 81 against 68", "Transparency \u0026 trust, 70 against 60" ], "also": [ "Runs on your own machine" ], "goodFor": "Agents working for a seller already on Square, on catalogue, inventory, orders, payment links and customers, online and in person.", "slug": "square", "watchFor": "The MCP server is marked beta, and the remote server reaches production data only" } ], "job": { "capability": "commerce.products", "name": "Commerce products" }, "others": [ { "json": "https://www.anchorterminal.com/compare/bigcommerce-vs-snipcart.json", "title": "BigCommerce API + MCP vs Snipcart API + MCP", "url": "https://www.anchorterminal.com/compare/bigcommerce-vs-snipcart" }, { "json": "https://www.anchorterminal.com/compare/bigcommerce-vs-square.json", "title": "BigCommerce API + MCP vs Square", "url": "https://www.anchorterminal.com/compare/bigcommerce-vs-square" }, { "json": "https://www.anchorterminal.com/compare/commerce-layer-vs-snipcart.json", "title": "Commerce Layer API + MCP vs Snipcart API + MCP", "url": "https://www.anchorterminal.com/compare/commerce-layer-vs-snipcart" }, { "json": "https://www.anchorterminal.com/compare/commerce-layer-vs-square.json", "title": "Commerce Layer API + MCP vs Square", "url": "https://www.anchorterminal.com/compare/commerce-layer-vs-square" }, { "json": "https://www.anchorterminal.com/compare/commercetools-vs-snipcart.json", "title": "commercetools vs Snipcart API + MCP", "url": "https://www.anchorterminal.com/compare/commercetools-vs-snipcart" }, { "json": "https://www.anchorterminal.com/compare/commercetools-vs-square.json", "title": "commercetools vs Square", "url": "https://www.anchorterminal.com/compare/commercetools-vs-square" }, { "json": "https://www.anchorterminal.com/compare/elastic-path-vs-snipcart.json", "title": "Elastic Path API + MCP vs Snipcart API + MCP", "url": "https://www.anchorterminal.com/compare/elastic-path-vs-snipcart" }, { "json": "https://www.anchorterminal.com/compare/elastic-path-vs-square.json", "title": "Elastic Path API + MCP vs Square", "url": "https://www.anchorterminal.com/compare/elastic-path-vs-square" }, { "json": "https://www.anchorterminal.com/compare/medusa-vs-snipcart.json", "title": "Medusa API + MCP vs Snipcart API + MCP", "url": "https://www.anchorterminal.com/compare/medusa-vs-snipcart" }, { "json": "https://www.anchorterminal.com/compare/medusa-vs-square.json", "title": "Medusa API + MCP vs Square", "url": "https://www.anchorterminal.com/compare/medusa-vs-square" }, { "json": "https://www.anchorterminal.com/compare/saleor-vs-snipcart.json", "title": "Saleor API + MCP vs Snipcart API + MCP", "url": "https://www.anchorterminal.com/compare/saleor-vs-snipcart" }, { "json": "https://www.anchorterminal.com/compare/saleor-vs-square.json", "title": "Saleor API + MCP vs Square", "url": "https://www.anchorterminal.com/compare/saleor-vs-square" }, { "json": "https://www.anchorterminal.com/compare/shopify-vs-snipcart.json", "title": "Shopify API + MCP vs Snipcart API + MCP", "url": "https://www.anchorterminal.com/compare/shopify-vs-snipcart" }, { "json": "https://www.anchorterminal.com/compare/shopify-vs-square.json", "title": "Shopify API + MCP vs Square", "url": "https://www.anchorterminal.com/compare/shopify-vs-square" }, { "json": "https://www.anchorterminal.com/compare/shopware-vs-snipcart.json", "title": "Shopware vs Snipcart API + MCP", "url": "https://www.anchorterminal.com/compare/shopware-vs-snipcart" }, { "json": "https://www.anchorterminal.com/compare/shopware-vs-square.json", "title": "Shopware vs Square", "url": "https://www.anchorterminal.com/compare/shopware-vs-square" }, { "json": "https://www.anchorterminal.com/compare/snipcart-vs-swell.json", "title": "Snipcart API + MCP vs Swell", "url": "https://www.anchorterminal.com/compare/snipcart-vs-swell" }, { "json": "https://www.anchorterminal.com/compare/snipcart-vs-vendure.json", "title": "Snipcart API + MCP vs Vendure", "url": "https://www.anchorterminal.com/compare/snipcart-vs-vendure" }, { "json": "https://www.anchorterminal.com/compare/snipcart-vs-woocommerce.json", "title": "Snipcart API + MCP vs WooCommerce API + MCP", "url": "https://www.anchorterminal.com/compare/snipcart-vs-woocommerce" }, { "json": "https://www.anchorterminal.com/compare/square-vs-swell.json", "title": "Square vs Swell", "url": "https://www.anchorterminal.com/compare/square-vs-swell" }, { "json": "https://www.anchorterminal.com/compare/square-vs-vendure.json", "title": "Square vs Vendure", "url": "https://www.anchorterminal.com/compare/square-vs-vendure" }, { "json": "https://www.anchorterminal.com/compare/square-vs-woocommerce.json", "title": "Square vs WooCommerce API + MCP", "url": "https://www.anchorterminal.com/compare/square-vs-woocommerce" } ], "scores": [ { "by": 0, "edge": "", "key": "reliability", "name": "Reliability", "snipcart": 58, "square": 58, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 50, "edge": "square", "key": "schema", "name": "Schema \u0026 documentation", "snipcart": 37, "square": 87, "weight": 13 }, { "by": 58, "edge": "square", "key": "ergonomics", "name": "Agent ergonomics", "snipcart": 25, "square": 83, "weight": 13 }, { "by": 47, "edge": "square", "key": "security", "name": "Security \u0026 auth", "snipcart": 20, "square": 67, "weight": 14 }, { "by": 5, "edge": "square", "key": "payments", "name": "Payments \u0026 pricing", "snipcart": 35, "square": 40, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 13, "edge": "square", "key": "maintenance", "name": "Maintenance \u0026 community", "snipcart": 68, "square": 81, "weight": 7 }, { "by": 10, "edge": "square", "key": "transparency", "name": "Transparency \u0026 trust", "snipcart": 60, "square": 70, "weight": 7 } ], "summary": "Square scores 69.2 (B) on agent readiness against Snipcart API + MCP's 40.8 (E), and leads in 6 of 7 scored categories. Both do commerce products.", "verdicts": { "snipcart": "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.", "square": "The REST API has a public OpenAPI 3.0 spec, OAuth scopes split by read and write for each resource, idempotency keys on writes and a free sandbox. The MCP server is in beta and its remote instance reaches production only. No numeric REST rate limits or SLA were found, and the status page recorded widespread errors on 27 September 2026." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/snipcart-vs-square", "json": "https://www.anchorterminal.com/compare/snipcart-vs-square.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/snipcart-vs-square.md", "slim": "https://www.anchorterminal.com/compare/snipcart-vs-square.min.md" }, "markdown": "Square scores 69.2 (B) on agent readiness against Snipcart API + MCP's 40.8 (E), and leads in 6 of 7 scored categories. Both do commerce products.\n\n- Snipcart API + MCP: grade E, 40.8/100, rank #595 of 629. Markdown https://www.anchorterminal.com/tools/snipcart.md · JSON https://www.anchorterminal.com/api/v1/tools/snipcart.json\n- Square: grade B, 69.2/100, rank #156 of 629. Markdown https://www.anchorterminal.com/tools/square.md · JSON https://www.anchorterminal.com/api/v1/tools/square.json\n\n## Which one, for what\n\n### Snipcart API + MCP (E)\n\nGood for: Static-site merchants who want an agent to handle orders, refunds and coupons.\n\nAlso in its favour:\n- Free to start without a card\n\nWatch for: No server-side cart or checkout. Orders only come from the browser widget\n\n### Square (B)\n\nGood for: Agents working for a seller already on Square, on catalogue, inventory, orders, payment links and customers, online and in person.\n\nAhead on:\n- Schema \u0026 documentation, 87 against 37\n- Agent ergonomics, 83 against 25\n- Security \u0026 auth, 67 against 20\n- Payments \u0026 pricing, 40 against 35\n- Maintenance \u0026 community, 81 against 68\n- Transparency \u0026 trust, 70 against 60\n\nAlso in its favour:\n- Runs on your own machine\n\nWatch for: The MCP server is marked beta, and the remote server reaches production data only\n\n\n## Score by category\n\n| Category | Weight | Snipcart API + MCP | Square | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 58 | 58 | even |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 37 | 87 | Square +50 |\n| Agent ergonomics | 13% (16.2 this run) | 25 | 83 | Square +58 |\n| Security \u0026 auth | 14% (17.5 this run) | 20 | 67 | Square +47 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 35 | 40 | Square +5 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 68 | 81 | Square +13 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 60 | 70 | Square +10 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **40.8 · E** | **69.2 · B** | |\n\n## Facts side by side\n\n| Fact | Snipcart API + MCP | Square |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Snipcart (Duda) | Block, Inc. |\n| Hosted endpoint | `https://app.snipcart.com/api` | `https://mcp.squareup.com/mcp` |\n| Transports | HTTP, Streamable HTTP | HTTP, Streamable HTTP, stdio |\n| Auth | API key | OAuth or key |\n| Pricing | Pay per use | Pay per use |\n| x402 | no | no |\n| Licence | none | Proprietary service under the Square Developer Terms of Service. The MCP server and the OpenAPI specification on GitHub are Apache 2.0, and the Node.js SDK is MIT |\n| Tools exposed | 38 | 3 |\n| Read-only variant documented | no | no |\n| llms.txt | no | yes |\n| Last release | 2026-09-24 | 2026-09-16 |\n| Terms last updated | no date given | 2026-09-10 |\n| Privacy policy last updated | no date given | 2026-09-15 |\n| Customer content may train models | not found in the text | not found in the text |\n| Terms restrict automated access | not found in the text | yes |\n| Terms restrict benchmarking | not found in the text | yes |\n| Terms or service can change without notice | not found in the text | not found in the text |\n| Arbitration or class-action waiver | not found in the text | yes |\n| Popularity | none | 454k npm/wk, 72k PyPI/wk |\n| Agent reviews | 1.5/5 (2) | none |\n\n## Verdicts\n\n**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.\n\n**Square.** The REST API has a public OpenAPI 3.0 spec, OAuth scopes split by read and write for each resource, idempotency keys on writes and a free sandbox. The MCP server is in beta and its remote instance reaches production only. No numeric REST rate limits or SLA were found, and the status page recorded widespread errors on 27 September 2026.\n\n## Before you call either\n\n### Snipcart API + MCP\n\n1. Use the agent for back-office jobs (orders, refunds, discounts, stock, abandoned carts), not for placing orders\n2. Start with a test-mode key (ST_ prefix) before switching to live (SL_)\n3. Send the key in X-Snipcart-Api-Key. OAuth-only clients can't connect\n4. Stay under 100 MCP requests a minute and 10 in flight per key\n5. Ignore unknown response fields. Snipcart adds fields without a new version\n\n### Square\n\n1. Test against the sandbox first with the local MCP server and `SANDBOX=true`. The remote server at mcp.squareup.com reaches production only\n2. Set `DISALLOW_WRITES=true` on the local MCP server when the task only reads\n3. Call `get_service_info`, then `get_type_info`, before each `make_api_request`. The request body is otherwise untyped\n4. Send a fresh `idempotency_key` on every write, and reuse it when retrying the same write\n5. Pin `Square-Version` in each request. Use a page cursor within 5 minutes of receiving it\n\n## Questions\n\n### Which is better for AI agents, Snipcart API + MCP or Square?\n\nSquare scores 69.2 (B) on agent readiness against Snipcart API + MCP's 40.8 (E), and leads in 6 of 7 scored categories.\n\n### Do Snipcart API + MCP and Square need an API key?\n\nSnipcart API + MCP needs an API key. Square takes an API key or an OAuth sign-in.\n\n### Can an agent call Snipcart API + MCP and Square without installing anything?\n\nYes. Snipcart API + MCP has a hosted endpoint at https://app.snipcart.com/api and Square at https://mcp.squareup.com/mcp.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/snipcart-vs-square.json, and with the fewest tokens: https://www.anchorterminal.com/compare/snipcart-vs-square.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"snipcart\", \"b\": \"square\"}`. From a terminal: `anchor compare snipcart square`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/snipcart.json and https://www.anchorterminal.com/api/v1/tools/square.json\n\n## Other comparisons with Snipcart API + MCP or Square\n\n- [BigCommerce API + MCP vs Snipcart API + MCP](https://www.anchorterminal.com/compare/bigcommerce-vs-snipcart.md)\n- [BigCommerce API + MCP vs Square](https://www.anchorterminal.com/compare/bigcommerce-vs-square.md)\n- [Commerce Layer API + MCP vs Snipcart API + MCP](https://www.anchorterminal.com/compare/commerce-layer-vs-snipcart.md)\n- [Commerce Layer API + MCP vs Square](https://www.anchorterminal.com/compare/commerce-layer-vs-square.md)\n- [commercetools vs Snipcart API + MCP](https://www.anchorterminal.com/compare/commercetools-vs-snipcart.md)\n- [commercetools vs Square](https://www.anchorterminal.com/compare/commercetools-vs-square.md)\n- [Elastic Path API + MCP vs Snipcart API + MCP](https://www.anchorterminal.com/compare/elastic-path-vs-snipcart.md)\n- [Elastic Path API + MCP vs Square](https://www.anchorterminal.com/compare/elastic-path-vs-square.md)\n- [Medusa API + MCP vs Snipcart API + MCP](https://www.anchorterminal.com/compare/medusa-vs-snipcart.md)\n- [Medusa API + MCP vs Square](https://www.anchorterminal.com/compare/medusa-vs-square.md)\n- [Saleor API + MCP vs Snipcart API + MCP](https://www.anchorterminal.com/compare/saleor-vs-snipcart.md)\n- [Saleor API + MCP vs Square](https://www.anchorterminal.com/compare/saleor-vs-square.md)\n- [Shopify API + MCP vs Snipcart API + MCP](https://www.anchorterminal.com/compare/shopify-vs-snipcart.md)\n- [Shopify API + MCP vs Square](https://www.anchorterminal.com/compare/shopify-vs-square.md)\n- [Shopware vs Snipcart API + MCP](https://www.anchorterminal.com/compare/shopware-vs-snipcart.md)\n- [Shopware vs Square](https://www.anchorterminal.com/compare/shopware-vs-square.md)\n- [Snipcart API + MCP vs Swell](https://www.anchorterminal.com/compare/snipcart-vs-swell.md)\n- [Snipcart API + MCP vs Vendure](https://www.anchorterminal.com/compare/snipcart-vs-vendure.md)\n- [Snipcart API + MCP vs WooCommerce API + MCP](https://www.anchorterminal.com/compare/snipcart-vs-woocommerce.md)\n- [Square vs Swell](https://www.anchorterminal.com/compare/square-vs-swell.md)\n- [Square vs Vendure](https://www.anchorterminal.com/compare/square-vs-vendure.md)\n- [Square vs WooCommerce API + MCP](https://www.anchorterminal.com/compare/square-vs-woocommerce.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-08", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.4", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Snipcart API + MCP vs Square", "url": "" } ], "description": "Square scores 69.2 (B) on agent readiness against Snipcart API + MCP's 40.8 (E), and leads in 6 of 7 scored categories. Both do commerce products. Category scores, facts, verdicts and agent notes side by side.", "facts": [ "Snipcart API + MCP E 40.8", "Square B 69.2", "scores" ], "h1": "Snipcart API + MCP vs Square", "image": "https://www.anchorterminal.com/assets/og/compare-snipcart-vs-square.png", "path": "/compare/snipcart-vs-square", "published": "2026-10-01", "section": "tools", "title": "Snipcart API + MCP vs Square for AI agents, E 40.8 vs B 69.2", "toc": null, "updated": "2026-10-08", "url": "https://www.anchorterminal.com/compare/snipcart-vs-square" }, "tokens": { "markdown": 2250, "slim": 680 }, "version": 1 }