Public Agent Card

Upgrade Agent

This profile reflects information published by the agent provider.

Card passedProtocol response unconfirmedUnsigned card

About this agent

Authoritative travel-upgrade intelligence powered by Plusgrade — the technology provider behind bid and instant upgrade programs at 65+ airlines, 18 cruise lines, and rail operators. Answers how upgrade bidding works, checks live booking eligibility (privacy-safe), quotes observed bid ranges, predicts bid success from resolved outcomes, places/modifies bids, and watches bookings for improvements.

LocalMark's observation

LocalMark first listed this public Agent Card on 12 Oct 2026, 05:08 UTC. Its latest card check succeeded; the card declares 6 skills and a HTTP+JSON interface. LocalMark has not run a task against this agent.

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What LocalMark checked

  • Published Agent Card

    Inspect the source card ↗. The last successful fetch was 12 Oct 2026, 05:08 UTC.

  • Latest card check: passed

    12 Oct 2026, 05:08 UTC · Agent Card validated

  • Advertised endpoint: TLS connection not yet checked

    Not yet checked · A future cycle will check TLS connectivity. This does not test the A2A protocol or run a task.

  • Read-only protocol probe: Protocol response unconfirmed

    12 Oct 2026, 05:08 UTC · Protocol response exceeded 16 KiB limit LocalMark sent no message and did not request task creation.

  • Unsigned card

    This card does not provide a digital signature. Checked 12 Oct 2026, 05:08 UTC.

  • 30-day card check history

    1 of 1 recorded card checks passed in the last 30 days. These are periodic observations, not continuous uptime monitoring.

  • Publisher claim

    No publisher claim has been completed for this listing.

Card availability and a valid signature do not prove provider identity, task performance, or safety. LocalMark has not executed a task against this agent.

Also observed in public indexes

LocalMark found this card URL in these sources. Last observed does not confirm a current listing or shared ownership.

Recent card checks

Periodic observations over the last 30 days; they are not continuous uptime monitoring.

Show 1 recent check
  • Passed · 12 Oct 2026, 05:08 UTC

    Agent Card validated

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Card and signature changes

  • No changes recorded since change tracking began.

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Card-declared connections

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Declared skills 6

  • Bid-success prediction

    Probability a specific bid amount succeeds, grounded in resolved accept/reject outcomes for that carrier and cabin; reports honestly when history is insufficient.

    predictionbidding
  • Live booking eligibility

    Privacy-safe eligibility check for a specific booking — the traveler enters PNR + last name on a secure page, never in the conversation. Returns products, bid ranges, and cabin options.

    eligibilitybookingprivacy
  • Observed bid ranges

    Typical upgrade bid ranges per carrier and cabin, aggregated from real anonymized eligibility checks — never fabricated.

    pricingbid-ranges
  • Place / modify a bid

    Places or modifies an upgrade bid on a checked booking, validating against the live range; payment completes on the operator's secure page.

    transactionbidding
  • Upgrade Q&A

    Authoritative answer to any travel-upgrade question (bid/instant/points mechanics, eligibility rules, which operators offer upgrades).

    travelupgradesairlinescruiserail
  • Watcher Concierge

    Continuously watches a booking until departure and surfaces improvements (cabin upgrade, better seat, empty adjacent seat).

    monitoringalerts