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A site that blocks those agents cannot be consulted.","fix":"Allow the ChatGPT User, Claude User and Perplexity User agents in robots.txt for public product, pricing and help pages.","test":"web"},{"id":"llms_txt","door":"discover","title":"llms.txt guide for agents","status":"pass","points":3,"maxPoints":3,"finding":"llms.txt is published with 169 links.","evidence":[{"label":"File","value":"https://squareup.com/llms.txt","url":"https://squareup.com/llms.txt"}],"why":"An llms.txt file gives an agent a short map of what you offer and where the authoritative pages are.","fix":"Publish /llms.txt with links to product, pricing, support and location pages.","test":"web"},{"id":"structured_data","door":"discover","title":"Structured data on the home page","status":"fail","points":0,"maxPoints":3,"finding":"No JSON LD structured data was found on the home page.","evidence":[],"why":"Schema.org markup lets an agent read products, prices and questions as data instead of guessing from the layout.","fix":"Add JSON LD for your organization type, Product or Service, Offer and FAQPage on the pages customers ask about most.","test":"web"},{"id":"server_rendered","door":"discover","title":"Content available without running scripts","status":"pass","points":3,"maxPoints":3,"finding":"Most of the visible text is in the first HTML response.","evidence":[{"label":"Text in first response","value":"12127 characters"},{"label":"Text after scripts","value":"4145 characters"}],"why":"Many agents read raw HTML and do not run scripts. Text that appears only after scripts run is invisible to them.","fix":"Render product, pricing and help content on the server so the first response contains the text.","test":"web"},{"id":"sitemap_content","door":"discover","title":"Sitemap that includes help and pricing pages","status":"pass","points":2,"maxPoints":2,"finding":"Sitemap lists 2035 entries including help, pricing, product pages.","evidence":[{"label":"Sitemap","value":"https://squareup.com/us/en/sitemap.xml","url":"https://squareup.com/us/en/sitemap.xml"}],"why":"A sitemap tells an agent where answers live. That cuts wrong guesses and stale pages.","fix":"Publish a sitemap that includes help center, pricing and product pages.","test":"web"},{"id":"mcp_server","door":"connect","title":"MCP server","status":"pass","points":8,"maxPoints":8,"finding":"A live MCP server answers at https://mcp.squareup.com/mcp and requires OAuth with published resource metadata.","evidence":[{"label":"Endpoint","value":"https://mcp.squareup.com/mcp","url":"https://mcp.squareup.com/mcp"}],"why":"An MCP server is the native way for an agent to use your services with the customer's approval. It replaces screen scraping and password sharing.","fix":"Publish a remote MCP server with OAuth. Start with read only tools such as account status, orders or location search, and publish a server card at /.well-known/mcp/server-card.","test":"web"},{"id":"a2a_agent_card","door":"connect","title":"Agent card for agent to agent calls","status":"fail","points":0,"maxPoints":2,"finding":"No agent card was found.","evidence":[],"why":"An agent card lets other agents discover what your own agent can do and how to authenticate.","fix":"Publish /.well-known/agent-card.json describing skills and authentication.","test":"web"},{"id":"openapi_docs","door":"connect","title":"Public API documentation","status":"partial","points":2,"maxPoints":3,"finding":"A developer portal exists, but no public OpenAPI document was found.","evidence":[{"label":"Developer portal","value":"https://developer.squareup.com/us/en","url":"https://developer.squareup.com/us/en"}],"why":"A published OpenAPI document lets developers and agents build against stable, described endpoints.","fix":"Publish an OpenAPI document for customer facing APIs on a developer portal.","test":"web"},{"id":"open_banking","door":"connect","title":"Developer and data sharing program","status":"partial","points":2,"maxPoints":4,"finding":"A developer portal or aggregator connection is mentioned, without a described data sharing program.","evidence":[{"label":"Developer portal","value":"https://developer.squareup.com/us/en","url":"https://developer.squareup.com/us/en"}],"why":"A data sharing program with a developer portal and standard APIs gives agents a consented path to customer data. Open banking is the best known example.","fix":"Document the program, the standard in use (for example FDX in US banking), the supported partners and a sandbox.","test":"web"},{"id":"webmcp_tools","door":"connect","title":"Browser tools exposed to agents","status":"fail","points":0,"maxPoints":3,"finding":"The sign in and home pages register no browser tools for agents.","evidence":[],"why":"WebMCP lets a page register tools that a browser agent can call directly instead of clicking through the interface.","fix":"Register tools for safe tasks such as location search and price lookup with navigator.modelContext.","test":"web"},{"id":"oauth_metadata","door":"identity","title":"OAuth and OpenID metadata","status":"pass","points":5,"maxPoints":5,"finding":"Authorization server metadata is published at mcp.squareup.com.","evidence":[{"label":"Issuer","value":"https://mcp.squareup.com","url":"https://mcp.squareup.com/.well-known/oauth-authorization-server"},{"label":"Grant types","value":"authorization_code, refresh_token"},{"label":"Scopes listed","value":"0"}],"why":"Published authorization server metadata tells a client where to send a customer to approve access.","fix":"Publish /.well-known/oauth-authorization-server and /.well-known/oauth-protected-resource for the customer facing APIs.","test":"web"},{"id":"pkce_registration","door":"identity","title":"PKCE and client registration","status":"pass","points":4,"maxPoints":4,"finding":"PKCE with S256 and a registration path for new clients are both published.","evidence":[{"label":"PKCE S256","value":"supported"},{"label":"Dynamic registration","value":"supported"},{"label":"Client ID metadata documents","value":"not listed"}],"why":"PKCE protects the approval step. Dynamic registration or client metadata documents let a new agent onboard without a manual review each time.","fix":"Require PKCE with S256 and support client ID metadata documents or dynamic client registration for approved agent clients.","test":"web"},{"id":"passkeys","door":"identity","title":"Passkeys at sign in","status":"pass","points":4,"maxPoints":4,"finding":"The sign in page makes WebAuthn calls, which indicates passkey support.","evidence":[{"label":"Signal","value":"WebAuthn call observed on app.squareup.com: isConditionalMediationAvailable, get (conditional)"},{"label":"Signal","value":"WebAuthn code present on app.squareup.com"},{"label":"Signal","value":"Passkey wording on app.squareup.com"},{"label":"Signal","value":"Conditional UI autofill hint (autocomplete webauthn)"}],"why":"A passkey lets a customer approve an agent action with a device gesture. It removes the passwords and one time codes that agents cannot handle.","fix":"Offer passkeys with conditional UI on the sign in page and for step up approvals.","test":"login"},{"id":"high_assurance","door":"identity","title":"High assurance authorization profile","status":"fail","points":0,"maxPoints":3,"finding":"No high assurance authorization features were found.","evidence":[],"why":"Pushed authorization requests, sender constrained tokens and rich authorization requests let a provider approve one specific action instead of a blanket login.","fix":"Support PAR with DPoP or mutual TLS, and rich authorization requests for payments and account changes.","test":"web"},{"id":"delegate_access","door":"identity","title":"Documented delegate and data sharing controls","status":"partial","points":2,"maxPoints":4,"finding":"Delegate access is described, with no connected apps or revocation page found.","evidence":[{"label":"Delegate access","value":"…if you send it yourself, on an individual basis, and opt outs from any third-party purporting to act on your behalf will have no effect on your or Company’s rights. 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Organizations need a documented route for authorized agents.","fix":"Publish a help page on delegate access and add a connected apps screen where customers revoke access.","test":"web"},{"id":"declared_agent_homepage","door":"web","title":"Home page for a declared agent","status":"pass","points":3,"maxPoints":3,"finding":"The home page loaded normally for a declared agent.","evidence":[{"label":"Status","value":"200"},{"label":"Response time","value":"1226 ms"}],"why":"A declared agent that is challenged or blocked at the first step cannot help the customer at all.","fix":"Allow declared agents through bot management on public pages, and verify them with signed requests.","test":"login"},{"id":"signin_reachable","door":"web","title":"Sign in page loads for a declared agent in a browser","status":"partial","points":1,"maxPoints":4,"finding":"The sign in page is blocked for a declared agent but loads for a standard browser.","evidence":[{"label":"Declared agent","value":"blocked (HTTP 403)"},{"label":"Standard browser","value":"loaded in 13109 ms"},{"label":"Page","value":"https://app.squareup.com/login?lang_code=en-us","url":"https://app.squareup.com/login?lang_code=en-us"}],"why":"Where a customer must use the website, a browser agent has to reach the sign in page so it can hand control back to the customer.","fix":"Serve the sign in page to verified agent browsers, and use signed agent identity to separate them from attackers.","test":"login"},{"id":"agent_browser_parity","door":"web","title":"Same behavior for a declared agent and a standard browser","status":"fail","points":0,"maxPoints":2,"finding":"A declared agent is treated worse than an anonymous browser.","evidence":[{"label":"Declared","value":"blocked"},{"label":"Browser","value":"loaded"}],"why":"If a declared agent is treated worse than an anonymous browser, honesty is penalized and agents will hide what they are.","fix":"Do not rank declared agents below anonymous browsers in bot management policy.","test":"login"},{"id":"form_semantics","door":"web","title":"Sign in form structure and autofill hints","status":"partial","points":1.6,"maxPoints":4,"finding":"40 percent of 5 fields have labels and 40 percent set autocomplete hints.","evidence":[{"label":"input field","value":"Email or phone number; autocomplete: username webauthn"},{"label":"input field","value":"no label; autocomplete: off"},{"label":"password field","value":"no label; autocomplete: current-password"},{"label":"textarea field","value":"no label; autocomplete: none"},{"label":"text field","value":"Cookie list search; autocomplete: none"}],"why":"Labels and autocomplete hints let an agent and a password manager find the right field and hand over to the customer at the right moment.","fix":"Label every field and set autocomplete values for the username, the current password and the one time code.","test":"login"},{"id":"semantic_markup","door":"web","title":"Semantic page structure","status":"partial","points":1,"maxPoints":2,"finding":"The page structure is only partly readable by agents.","evidence":[{"label":"Landmarks","value":"3"},{"label":"Headings","value":"5"},{"label":"Named controls","value":"75 percent"},{"label":"Images with alt text","value":"11 percent"}],"why":"Landmarks, headings and named controls let an agent read the page the way a screen reader does.","fix":"Use landmark elements, headings in order, accessible names on buttons and alt text on images.","test":"login"},{"id":"terms_stance","door":"policy","title":"Terms on automated access","status":"partial","points":2,"maxPoints":4,"finding":"The terms restrict automated access and also address delegates, which leaves room for an authorized route.","evidence":[{"label":"Terms excerpt","value":"…as expressly permitted by Square; except to the extent that any restriction is expressly prohibited by law, violate the restrictions in any robot exclusion headers on any Service, work around, bypass, or circumvent any of the technical limitations of the…","url":"https://squareup.com/us/en/legal/general/ua"},{"label":"Terms excerpt","value":"…it yourself, on an individual basis, and opt outs from any third-party purporting to act on your behalf will have no effect on your or Company’s rights. If you opt out of this Arbitration Agreement, all other…","url":"https://squareup.com/us/en/legal/general/ua"}],"why":"Terms that prohibit all automated access with no exception make every agent a violation, even when the customer authorized it.","fix":"Add an exception for authorized agents acting for the customer through approved interfaces.","test":"web"},{"id":"third_party_rules","door":"policy","title":"Third party access and data sharing rules","status":"fail","points":0,"maxPoints":3,"finding":"No third party access rules were found in the documents read.","evidence":[],"why":"Published rules tell customers and developers what is allowed. That keeps agents on approved paths.","fix":"Publish a third party access policy that names the approved interfaces and the consent model.","test":"web"},{"id":"ai_position","door":"policy","title":"Published position on AI agents","status":"partial","points":1,"maxPoints":3,"finding":"AI is mentioned in published documents, but not agents that act for customers.","evidence":[{"label":"Excerpt","value":"…of Service: These terms apply when you use any products, features and tools powered by artificial intelligence or machine learning (“AI Products”) that are offered by Square or a third party. 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Eight launch partners and dozens of design partners back it.","fix":"Publish a poppy.json file in the well known folder of your website. It names your organization, your sign in server and at least one route. Then make your sign in server list your domain in poppy_domains. 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This page is displayed while the website verifies you are not a bot. Ray ID: a44b72a32b16c502 Performance and Security by Cloudflare Priva"},"browser":{"finalUrl":"https://app.squareup.com/login?lang_code=en-us","status":200,"title":"Square: Sign in to Your Dashboard & Manage your Business","ms":13109,"blocked":false,"blockReason":null,"thin":false,"uaLabel":"browser","error":null,"vendors":[{"name":"Cloudflare","evidence":["cookie __cf_bm","header cf-ray","header server"]}],"textPreview":"Square Sign in New to Square? Sign up Email or phone number Continue or Sign in with a passkey Monitor your team's sales Sell prepaid services Track your team's hours Fill cancellations Optimize scheduling Track live sales Automate marketing Create floor plans"},"botDefense":[{"name":"Cloudflare","evidence":["cookie cf_clearance","cookie __cf_bm","host challenges.cloudflare.com","host brunhild.challenges.cloudflare.com"]}],"passkeys":{"found":true,"runtimeObserved":true,"evidence":["WebAuthn call observed on app.squareup.com: isConditionalMediationAvailable, get (conditional)","WebAuthn code present on app.squareup.com","Passkey wording on app.squareup.com","Conditional UI autofill hint (autocomplete webauthn)"]},"fields":[{"type":"input","label":"Email or phone number","autocomplete":"username webauthn","name":""},{"type":"input","label":"","autocomplete":"off","name":""},{"type":"password","label":"","autocomplete":"current-password","name":""},{"type":"textarea","label":"","autocomplete":"","name":"g-recaptcha-response"},{"type":"checkbox","label":"Performance and analytical technology","autocomplete":"","name":"ot-group-id-C0002"},{"type":"checkbox","label":"Functionality technology","autocomplete":"","name":"ot-group-id-C0003"},{"type":"checkbox","label":"Retargeting or advertising technology","autocomplete":"","name":"ot-group-id-C0004"},{"type":"text","label":"Cookie list search","autocomplete":"","name":"vendor-search-handler"},{"type":"checkbox","label":"checkbox label","autocomplete":"","name":""},{"type":"checkbox","label":"checkbox label","autocomplete":"","name":""},{"type":"checkbox","label":"checkbox label","autocomplete":"","name":""},{"type":"checkbox","label":"checkbox label","autocomplete":"","name":""}]},"protocols":{"mcp":{"cards":[],"endpoints":[{"url":"https://mcp.squareup.com/mcp","getStatus":401,"contentType":"application/json","confirmed":true,"authRequired":true,"challenge":{"raw":"Bearer realm=\"OAuth\", resource_metadata=\"https://mcp.squareup.com/.well-known/oauth-protected-resource/mcp\", error=\"invalid_token\", error_description=\"Missing or invalid access token\"","resourceMetadata":"https://mcp.squareup.com/.well-known/oauth-protected-resource/mcp","scheme":"bearer"},"resourceMetadata":"https://mcp.squareup.com/.well-known/oauth-protected-resource/mcp","resource":{"url":"https://mcp.squareup.com/.well-known/oauth-protected-resource/mcp","resource":"https://mcp.squareup.com/mcp","authorizationServers":["https://mcp.squareup.com"],"scopes":[],"bearerMethods":["header"]},"tools":null}],"resources":[{"url":"https://mcp.squareup.com/.well-known/oauth-protected-resource/mcp","resource":"https://mcp.squareup.com/mcp","authorizationServers":["https://mcp.squareup.com"],"scopes":[],"bearerMethods":["header"]}],"registry":{"checked":true,"matches":[]},"mentions":[],"found":true,"live":true,"protectedByOAuth":true,"registryListed":false,"checkedBases":5},"a2a":{"found":false},"aiPlugin":{"found":false},"agentsJson":{"found":false},"openapi":{"found":false},"llms":{"llmsTxt":{"found":true,"status":200,"url":"https://squareup.com/llms.txt","bytes":22082,"links":169,"preview":"# Square (US - English) > Square builds software, hardware, and financial services to help businesses take payments, run point of sale, sell online, engage customers, pay staff, and manage cash flow. 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