Publisher
Description
Upgrade Agent is an authoritative answer engine and registry for travel upgrades and ancillaries — bid upgrades, instant upgrades, seat blockers, and premium seating across airlines, cruise lines, and rail operators (85 operators today: 65 airline, 18 cruise, 2 rail). It answers upgrade questions, checks live booking eligibility, and looks up operator programs.
Integration stack:
- MCP server (Streamable HTTP): https://www.upgradeagent.ai/api/mcp — 7 tools (upgrade Q&A, live eligibility by PNR + last name, partner lookups, search). Published in the official MCP Registry as
ai.upgradeagent/upgrade-agent.
- Discovery registry (
application/ai-registry+json): https://www.upgradeagent.ai/api/ard/search — natural-language search over verified resources, with explicitly-stated coverage (currently 1 publisher, 0 federated carriers — stated honestly, not inflated).
- Signed catalog: Ed25519 detached JWS over JCS (RFC 8785) per entry, anchored to
did:web.
Catalog entries (4)
| URN |
Type |
Path |
urn:air:upgradeagent.ai:server:mcp |
application/mcp-server-card+json |
/.well-known/mcp/server-card.json |
urn:air:upgradeagent.ai:registry:search |
application/ai-registry+json |
/api/ard/search |
urn:air:upgradeagent.ai:doc:llms |
text/markdown |
/llms.txt |
urn:air:upgradeagent.ai:dataset:partners |
text/html |
/partners |
(All urn:air: per the ai-catalog.schema.json pattern; only spec-supported media types.)
Representative queries
- how does airline upgrade bidding work
- which airlines offer bid upgrades in Europe
- check if booking ABC123 / last name Smith is eligible for a business upgrade
- find an upgrade to business across any airline for my route
- list the airlines that offer bid upgrades
Discovery surfaces
Validation (checkable)
Independent signature verification — resolves did:web, recomputes the JCS bytes, verifies every entry's Ed25519 signature:
curl -s https://www.upgradeagent.ai/.well-known/ai-catalog.json
# verified with an ARD JWS verifier -> "5 verified, 0 failed" (host + 4 entries)
A CI workflow re-runs this verifier against production on every change.
Request: please consider listing Upgrade Agent as a reference publisher / ARD registry instance for the airline, cruise & rail upgrades and ancillaries vertical — a non-normative instance under the seven-property contract. Happy to serve as a reference implementation for the travel-upgrades vertical. Deferring to the maintainers on any normative wording.
Publisher
did:web:www.upgradeagent.ai— https://www.upgradeagent.ai/.well-known/did.jsonDescription
Upgrade Agent is an authoritative answer engine and registry for travel upgrades and ancillaries — bid upgrades, instant upgrades, seat blockers, and premium seating across airlines, cruise lines, and rail operators (85 operators today: 65 airline, 18 cruise, 2 rail). It answers upgrade questions, checks live booking eligibility, and looks up operator programs.
Integration stack:
ai.upgradeagent/upgrade-agent.application/ai-registry+json): https://www.upgradeagent.ai/api/ard/search — natural-language search over verified resources, with explicitly-stated coverage (currently 1 publisher, 0 federated carriers — stated honestly, not inflated).did:web.Catalog entries (4)
urn:air:upgradeagent.ai:server:mcpapplication/mcp-server-card+json/.well-known/mcp/server-card.jsonurn:air:upgradeagent.ai:registry:searchapplication/ai-registry+json/api/ard/searchurn:air:upgradeagent.ai:doc:llmstext/markdown/llms.txturn:air:upgradeagent.ai:dataset:partnerstext/html/partners(All
urn:air:per theai-catalog.schema.jsonpattern; only spec-supported media types.)Representative queries
Discovery surfaces
Validation (checkable)
Independent signature verification — resolves
did:web, recomputes the JCS bytes, verifies every entry's Ed25519 signature:A CI workflow re-runs this verifier against production on every change.
Request: please consider listing Upgrade Agent as a reference publisher / ARD registry instance for the airline, cruise & rail upgrades and ancillaries vertical — a non-normative instance under the seven-property contract. Happy to serve as a reference implementation for the travel-upgrades vertical. Deferring to the maintainers on any normative wording.