ihg.com

No evidence that IHG (ihg.com) has adopted, announced, or partnered on the A2A (Agent2Agent) protocol. The A2A launch partner list — which includes Atlassian, Box, Cohere, Intuit, LangChain, MongoDB, PayPal, Salesforce, SAP, ServiceNow, and others — contains no hospitality or travel brands, and IHG is not named anywhere in A2A-related coverage. The ihg.com search result that appeared was an unrelated travel-agent booking portal, not an A2A integration.

No evidence that IHG (ihg.com) has adopted or announced support for the Agentic Commerce Protocol. Known ACP launch partners in the retail and hospitality space include URBN brands, Coach, Kate Spade, Revolve, Ashley Furniture, Booking.com, Expedia, Accor, and Wyndham — IHG does not appear among them. Choosing not_found rather than confirmed_absent because IHG has not issued any vendor-specific statement or deprecation notice regarding ACP.

No evidence that IHG (ihg.com) is among the approximately 60 organizations that joined the AP2 FIDO Alliance donation announcement in April 2026. Named launch partners include Adyen, American Express, Mastercard, PayPal, Worldpay, Revolut, Etsy, Salesforce, and Coinbase — all payment infrastructure or platform companies, not hotel brands. No IHG-specific AP2 statement, implementation, or partnership mention was found across AP2 protocol documentation or coverage.

No official MCP server from IHG (ihg.com) was found in any vendor documentation, the official MCP registry, or IHG's developer resources. The only MCP-related finding was a third-party, browser-automation-based MCP wrapper (@striderlabs/mcp-ihg by markswendsen-code on GitHub/Glama), which scrapes ihg.com via Playwright and is not sanctioned or published by IHG itself. IHG has not issued any MCP-related announcements or deprecation notices.

MPP launched by Stripe and Tempo with named partners including Anthropic, OpenAI, Shopify, DoorDash, Mastercard, Nubank, Ramp, Revolut, Standard Chartered, Cloudflare, Visa, Lightspark, Alchemy, and Dune Analytics — IHG (ihg.com) does not appear in any MPP partner list, launch announcement, or ecosystem documentation. No IHG-specific evidence of MPP adoption, implementation, or evaluation was found. Status is not_found (not confirmed_absent) because the absence is based on IHG not appearing in external MPP materials, not on any IHG-issued statement or deprecation notice.

No evidence found that IHG (ihg.com) has adopted NLWeb or exposed /ask or /mcp endpoints. Known early NLWeb adopters named by TechRadar and related sources include Shopify, TripAdvisor, Eventbrite, O'Reilly Media, Hearst properties, and Common Sense Media — IHG is absent from all such lists. No IHG-specific announcement or documentation referencing NLWeb was found.

Hotel booking via UCP for Lodging — IHG Hotels & Resorts is named by Google as a participating launch partner for direct hotel reservation checkout through Google AI Mode in Search; scope is room reservations only, no other commerce categories.

Google explicitly named IHG Hotels & Resorts as a participating industry partner for the UCP hotel booking expansion announced at Google Marketing Live (May 2026), alongside Booking.com, Expedia, Marriott, and others. The UCP for Lodging spec is not yet published and the developer page at developers.google.com/hotels/ucp only offers a waitlist — no live, callable endpoint exists as of this research pass. Classified as platform_mediated because access runs through Google's platform, not a directly published IHG endpoint.

No evidence found that IHG (ihg.com) has implemented or publicly committed to WebMCP. Google I/O 2026 WebMCP launch partner coverage named Booking Holdings (Booking.com), Expedia, and Wyndham Hotels as travel-sector participants; IHG appeared in none of these announcements. No IHG-specific WebMCP documentation, tool registration, or partnership statement was found.

No evidence that IHG (ihg.com) participates in or has adopted the x402 stablecoin micropayment protocol. Known x402 launch partners include Cloudflare and Coinbase itself; a crypto-native travel booking platform (Travala) was found using x402 with USDC on Base, but IHG has no confirmed presence in that context. IHG's documented partner programs are conventional affiliate and loyalty integrations, with no stablecoin or HTTP-402 payment surface found.

Hotel discovery and comparison for IHG's 7,000+ properties across 100+ countries within ChatGPT; finalizes bookings via redirect to IHG's own direct booking channels rather than completing transactions inside ChatGPT.

IHG launched an official app within OpenAI's ChatGPT platform (part of the ChatGPT Apps ecosystem introduced in October 2025). Multiple trade sources (Hotel Dive, Lodging Magazine, AltexSoft) confirm the launch. The app supports search, compare, and explore functions with a redirect to IHG.com or the IHG One Rewards app for final booking; in-ChatGPT transactional booking is not supported. IHG also announced plans to add conversational AI search to its own website and app separately.

Affiliate/partner-facing API suite providing real-time hotel rate lookup (single-property and area availability), rate-rules, hotel search/content (descriptive info, amenities), and reservation-link generation across IHG's global portfolio; booking completes via redirect to IHG brand sites rather than through the API itself

IHG's PartnerConnect RoomService portal (pcroomservice.ihg.com) exposes a proprietary REST/XML API suite — Hotel Search, Hotel Descriptive Info, Single Property Availability, Rate Range (Area Availability), and Single Property Availability with Rate Rules — accessible after self-serve affiliate registration. The platform is owned by Six Continents Hotels, Inc. (IHG) and was historically powered by Mashery; the portal copyright reads 2017, suggesting limited active investment but the endpoints remain publicly documented. A separate affiliate marketing program at partnerconnect.ihg.com gates RoomService access as a benefit, indicating a partner-enrollment step is required before API keys are issued.

Direct HTTP requests to ihg.com for all standard self-declaration paths (llms.txt, /.well-known/agent, /.well-known/ai-plugin.json, /AGENTS.md, /agents.md) returned HTTP 000 (connection-level failure), indicating the sandbox has no outbound network access to this domain. Web searches found no indexed evidence of IHG publishing any such file. The check was structurally blocked by network access constraints, not by examining and finding nothing.