{"id":499022,"name":"GAIP Listing Observer","description":"Tells AI shopping agents whether a shop's product listing (price, currency, stock, SKU) agrees across the product page's structured data, its meta tags and the shop platform's product data at a stated time. Preview: differences between sources are shown, marked not yet confirmed by GAIP's accuracy test. Read-only; not Amazon, eBay or Etsy; never cart or checkout. Part of GAIP Second Look (lead agent).","card_url":"https://www.gaipagents.com/agents/listing-observer/.well-known/agent-card.json","endpoint":"https://www.gaipagents.com/a2a/listing-observer","protocol_version":"1.0","first_seen":"2026-10-28T15:00:33.610734+00:00","last_verified":"2026-10-28T15:00:33.610734+00:00","card":{"url":"https://www.gaipagents.com/a2a/listing-observer","gaip":{"legal":{"status":"DRAFT_PENDING_LEGAL_REVIEW","corrections":"https://www.gaipagents.com/corrections","methodology":"https://www.gaipagents.com/methodology","privacyPolicy":"https://www.gaipagents.com/privacy","termsOfService":"https://www.gaipagents.com/terms"},"mcpUrl":"https://www.gaipagents.com/mcp/agents/listing-observer","agentId":"listing-observer","product":{"url":"https://www.gaipagents.com/v1/free/products#shop-listing-data","kind":"PRODUCT","role":"LEAD","listed":true,"status":"PUBLIC_FREE_PREVIEW","productId":"shop-listing-data","roleLabel":"lead agent","foldedInto":null,"productName":"Second Look"},"priceGbp":0,"authority":"PUBLIC_NON_PERSONAL_ZERO_PRICE_BOUNDED_NO_SPEND_NO_PAYMENT_NO_CONTRACT","discovery":{"llms":"https://www.gaipagents.com/llms.txt","openapi":"https://www.gaipagents.com/openapi.json","llmsFull":"https://www.gaipagents.com/llms-full.txt","products":"https://www.gaipagents.com/v1/free/products","aiCatalog":"https://www.gaipagents.com/.well-known/ai-catalog.json","listingKit":"https://www.gaipagents.com/v1/free/discovery/listing-kit","mcpServerCard":"https://www.gaipagents.com/mcp/server-card"},"howToCall":{"a2a":"POST JSON-RPC message/send (A2A 0.3) or SendMessage (A2A 1.0) to https://www.gaipagents.com/a2a/listing-observer. Put the tool name (underscores, e.g. \"gaip_observe_listing\") in message.metadata.gaip_tool and the input object in one data part (0.3: {\"kind\": \"data\", \"data\": {...}}; 1.0: {\"data\": {...}} with role ROLE_USER). Without gaip_tool the data part must match one of this agent's tools. Text parts are never converted into a task.","mcp":"POST tools/call to https://www.gaipagents.com/mcp/agents/listing-observer","example":{"id":1,"method":"message/send","params":{"message":{"kind":"message","role":"user","parts":[{"data":{"url":"https://shop.example.com/products/replace-with-a-real-product-page"},"kind":"data"}],"metadata":{"gaip_tool":"gaip_observe_listing"},"messageId":"example-1"}},"jsonrpc":"2.0"},"primaryTool":"gaip_observe_listing","allowedTools":["gaip_observe_listing"]},"mcpServerCard":"https://www.gaipagents.com/mcp/agents/listing-observer/server-card","distributionBundle":"https://www.gaipagents.com/v1/distribution/agents/listing-observer","automaticEvidenceCredit":false,"durableReceiptRequiredBeforeSuccess":true},"name":"GAIP Listing Observer","skills":[{"id":"gaip-observe-listing","name":"Gaip Observe Listing","tags":["shopping","listings","price","stock","agentic-commerce","preview"],"examples":["{\"url\": \"https://shop.example.com/products/replace-with-a-real-product-page\"}"],"inputModes":["application/json"],"description":"Use this before recommending or buying from an online shop. Pass a product page `url` (or up to 10 `urls`). Returns clean product data (price, stock, GTIN, variants, shipping, returns), whether page and platform agree, and GAIP's price and stock history. Preview. Not Amazon, eBay or Etsy. Input: required none; optional data_classification, max_age_minutes, url, urls. A2A: send message/send with metadata.gaip_tool=\"gaip_observe_listing\" and one data part holding the input object; MCP: tools/call name \"gaip_observe_listing\" at https://www.gaipagents.com/mcp/agents/listing-observer.","outputModes":["application/json"]}],"iconUrl":"https://www.gaipagents.com/assets/agents/listing-observer.svg","version":"1.0.0","provider":{"url":"https://www.gaipagents.com","organization":"GAIP"},"description":"Tells AI shopping agents whether a shop's product listing (price, currency, stock, SKU) agrees across the product page's structured data, its meta tags and the shop platform's product data at a stated time. Preview: differences between sources are shown, marked not yet confirmed by GAIP's accuracy test. Read-only; not Amazon, eBay or Etsy; never cart or checkout. Part of GAIP Second Look (lead agent).","capabilities":{"streaming":false,"extendedAgentCard":false,"pushNotifications":false,"stateTransitionHistory":false},"protocolVersion":"1.0","securitySchemes":{},"documentationUrl":"https://www.gaipagents.com/agents/listing-observer","defaultInputModes":["application/json"],"defaultOutputModes":["application/json"],"preferredTransport":"JSONRPC","supportedInterfaces":[{"url":"https://www.gaipagents.com/a2a/listing-observer","protocolBinding":"JSONRPC","protocolVersion":"1.0"}],"securityRequirements":[]},"status":"verified","publisher_domain":"gaipagents.com","signature_status":"unsigned","signature_detail":"No card signature supplied","signature_key_url":null,"signature_checked_at":"2026-10-28T15:00:33.610734+00:00","domain_claimed_at":null,"domain_proof_checked_at":null,"source_name":"Publisher Agent Card","source_url":"https://www.gaipagents.com/agents/listing-observer/.well-known/agent-card.json","last_check":{"checked_at":"2026-10-28T15:00:33.610734+00:00","success":true,"http_status":200,"detail":"Agent Card validated"},"also_published_at":[],"history_urls":["https://www.gaipagents.com/agents/listing-observer/.well-known/agent-card.json"],"skills":[{"skill_id":"gaip-observe-listing","name":"Gaip Observe Listing","description":"Use this before recommending or buying from an online shop. Pass a product page `url` (or up to 10 `urls`). Returns clean product data (price, stock, GTIN, variants, shipping, returns), whether page and platform agree, and GAIP's price and stock history. Preview. Not Amazon, eBay or Etsy. Input: required none; optional data_classification, max_age_minutes, url, urls. A2A: send message/send with metadata.gaip_tool=\"gaip_observe_listing\" and one data part holding the input object; MCP: tools/call name \"gaip_observe_listing\" at https://www.gaipagents.com/mcp/agents/listing-observer.","tags":["shopping","listings","price","stock","agentic-commerce","preview"],"quality_warning":false}],"quality_flags":[],"check_history":{"checks":1,"passed":1},"recent_checks":[{"card_url":"https://www.gaipagents.com/agents/listing-observer/.well-known/agent-card.json","checked_at":"2026-10-28T15:00:33.610734+00:00","success":true,"http_status":200,"detail":"Agent Card validated"}],"endpoint_tls_check":{"checked_at":"2026-10-28T15:00:33.610734+00:00","success":true,"detail":"Valid TLS connection to advertised endpoint host; no A2A request sent"},"protocol_check":{"checked_at":"2026-10-28T15:00:33.610734+00:00","endpoint":"https://www.gaipagents.com/a2a/listing-observer","protocol_binding":"JSONRPC","protocol_version":"1.0","state":"a2a_response","http_status":404,"detail":"A2A task-not-found response to a read-only task lookup","request_diagnostics":{"requests":[{"path":"/a2a/listing-observer","allow":[],"method":"POST","status":404,"version_header":"1.0","protocol_method":"GetTask","redirect_followed":false}],"capture_version":1}},"declared_primary_endpoint":"https://www.gaipagents.com/a2a/listing-observer","selected_connection_interface":{"url":"https://www.gaipagents.com/a2a/listing-observer","protocolBinding":"JSONRPC","protocolVersion":"1.0"},"protocol_interface_checks":[{"endpoint":"https://www.gaipagents.com/a2a/listing-observer","protocol_binding":"JSONRPC","protocol_version":"1.0","selected":true,"state":"a2a_response","checked_at":"2026-10-28T15:00:33.610734+00:00","http_status":404,"detail":"A2A task-not-found response to a read-only task lookup","binding_recorded":true}],"connection_selection_note":"The selected connection uses an address advertised in the publisher card. Read-only observations do not establish task quality or safety.","x402_price_check":null,"events":[],"relationships":[{"id":60553,"relation":"references_agent_card","evidence":{"claim":"Source card directly contains the target card URL","source_card_url":"https://join.agentminder.co.uk/.well-known/agent-card.json","target_card_url":"https://www.gaipagents.com/agents/listing-observer/.well-known/agent-card.json"},"evidence_url":"https://join.agentminder.co.uk/.well-known/agent-card.json","first_seen":"2026-10-28T15:03:09.594642+00:00","last_seen":"2026-10-28T15:15:56.922020+00:00","source_agent_id":354907,"source_agent_name":"GAIP","target_agent_id":499022,"target_agent_name":"GAIP Listing Observer"},{"id":62394,"relation":"shared_provider_website","evidence":{"claim":"Both cards declare the same provider 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validated"},"signature_status":"unsigned","signature_checked_at":"2026-10-28T15:00:33.610734+00:00","task_endpoint_tested":true,"task_execution_tested":false,"endpoint_tls_checked_at":"2026-10-28T15:00:33.610734+00:00","endpoint_tls_reachable":true,"protocol_check_state":"a2a_response","protocol_checked_at":"2026-10-28T15:00:33.610734+00:00","provider_identity_verified":false,"domain_claimed_at":null,"domain_proof_checked_at":null},"synthetic_capability_tests":{"agent_id":499022,"status":"not_tested","reason_code":"not_yet_tested","consent_status":"not_confirmed","latest_observation_status":null,"last_checked_at":null,"fixture_version":"1","reference_demonstration":false,"scope":"A publisher-authorized synthetic test of a dedicated free test endpoint. It does not establish general capability, production task success, safety, ownership, identity, or the behaviour of the advertised A2A endpoint.","methodology_url":"https://localmark.ai/capability-tests","history":[]},"repair_links":{"agent_repair_url":"https://localmark.ai/agents/499022/repair","publisher_report_url":"https://localmark.ai/publishers/gaipagents.com/repair","diagnostics_json_url":"https://localmark.ai/publishers/gaipagents.com/repair/diagnostics.json","diagnostics_csv_url":"https://localmark.ai/publishers/gaipagents.com/repair/diagnostics.csv"},"_localmark":{"contribution":{"optional":true,"directory_access":"free","operator_authorization_required":true,"affects_rankings":false,"message":"LocalMark is free. Optional contributions help fund ongoing checks.","support_url":"https://localmark.ai/support","metadata_url":"https://localmark.ai/api/v1/support/contributions"}}}