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Carry-On Chart

Real carry-on size and weight limits across 60 world airlines, plus a will-it-fit checker

Unify Dynamics LLC

Documentation
Tools9read-only
Sign-inNoneno account, no key
Data keptNoneprocessed in memory
PriceFreeoptional Pro limits
StatusLiveMCP + REST
Works withMCP · RESTany agent

Try asking

Real questions, and the tools your agent calls to answer them.

What's the carry-on limit for Emirates?
Tools called
carry_on_limits
Compare carry-on rules for Ryanair, EasyJet and Lufthansa
Tools called
compare_airlines
Which airlines do you cover in Europe?
Tools called
airlines_list
What regions do you cover?
Tools called
regions_list
Will a 22x14x9 inch bag fit on Qatar Airways?
Tools called
will_it_fit
What's the largest bag that fits both Emirates and Southwest?
Tools called
smallest_common_size
Convert 55x40x20 cm to inches
Tools called
convert_dimensions
Which airlines don't publish a carry-on weight limit?
Tools called
airlines_without_published_weight_limit
Is there one carry-on size that fits every airline?
Tools called
carry_on_general_tips

About

Carryonchart is a hand-curated carry-on baggage size and weight chart. carry_on_limits gives one airline's max dimensions (inches and cm), weight limit, and personal-item allowance. compare_airlines lines up several airlines side by side. airlines_list and regions_list show the 60-airline, cross-region coverage. will_it_fit checks a bag's dimensions against one named airline, or against all 60 if none is given, returning exactly which airlines it fits and which it doesn't. smallest_common_size computes — pure arithmetic on the published limits, not a lookup — the largest bag that still fits within every named airline's limit, for packing a multi-airline trip. convert_dimensions converts bag dimensions between inches and centimetres. airlines_without_published_weight_limit lists airlines (mostly US carriers domestically) that publish no carry-on weight cap. carry_on_general_tips explains that there is no single industry-standard carry-on size and gives the closest common denominator. GENERAL REFERENCE, NOT LIVE — airline baggage policy changes and varies by route, aircraft, fare class and region, and gate agents make the final call. Always verify your specific airline's current policy before you pack or fly. Keyless; fully local; nothing stored.

Sources: Hand-curated from a published 2026 airline carry-on size chart aggregating 60+ carriers' own stated policies, spot-checked via web search in September 2026; limits change and vary by route/fare — always verify with the airline before flying

Privacy

The publisher, Unify Dynamics LLC, states that tool inputs are processed in memory and not retained.

Data not collectedNo account, no profile, no stored prompts or results.
Privacy policyTerms

What it can do

9 tools, grouped by job. Every one is read-only or compute-only.

OpenAPI
Look Up3 tools
  • Carry on limitsOne airline's carry-on maximum dimensions (inches and cm), weight limit, and personal-item allowance.
  • Compare airlinesLines up several airlines' carry-on limits side by side.
  • Will it fitChecks a bag's dimensions (compared regardless of which side you list first) against one named airline, or against every covered airline if none…
Browse3 tools
  • Airlines listEvery airline this chart covers (60 total), optionally filtered to one region.
  • Regions listThe regions this chart covers, with how many airlines are in each.
  • Airlines without published weight limitAirlines in this chart that publish no carry-on weight cap (mostly major US carriers on domestic routes) — context for why weight rarely comes up…
Compute & Learn3 tools
  • Smallest common sizeComputes (pure arithmetic on this chart's published limits) the largest bag that still fits within every named airline's stated carry-on limit —…
  • Convert dimensionsConverts one to three bag dimensions between inches and centimetres, and the linear (sum-of-sides) total.
  • Carry on general tipsExplains why there is no single universal carry-on size, and the closest common denominator across major airlines' published limits.

Information

PublisherUnify Dynamics LLC
CategoryTravel & transport · Reference
LanguagesEnglish
Built forGlobal (60 airlines covered)
CompatibilityAny MCP client · any agent · REST
Version0.1.0
MCP endpointhttps://carryonchart.connectorbay.com/mcp
REST APIopenapi.json
SupportGet help · Status
CountryWorldwide

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Documentation

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What Carry-On Chart is for

"What's the carry-on limit for Emirates?", "will my bag fit on Qatar Airways?", "what's the largest bag that survives a trip on three different airlines?" — a real, hand-curated chart for the question every packer asks right before a flight.

What it does

carry_on_limits gives one airline's exact maximum carry-on dimensions (in both inches and centimetres), weight limit, and personal-item allowance. compare_airlines lines up several airlines side by side. airlines_list and regions_list show this chart's coverage — 60 major airlines across North America, Europe, Asia, the Middle East, Oceania, Africa and Latin America. will_it_fit takes your actual bag's dimensions and checks them against one named airline, or against all 60 covered airlines at once if you don't name one, returning exactly which airlines it clears and which it doesn't. smallest_common_size computes — this one is pure arithmetic on the published limits, not a lookup — the largest bag that still fits within every airline you name, so you can pack once for a whole multi-airline itinerary. convert_dimensions converts bag measurements between inches and centimetres. airlines_without_published_weight_limit lists the airlines (mostly major US carriers on domestic routes) that publish no carry-on weight cap at all, useful context since many international carriers enforce one strictly. carry_on_general_tips explains why there's no single industry-standard carry-on size, and what the closest common denominator actually is.

What it is not

General reference, not a live feed. Airline baggage policy changes, varies by route, aircraft type, fare class, and region, and the gate agent makes the final call regardless of what any chart says. Always verify your specific airline's current policy on their official website — ideally for the exact route and fare you've booked — before you pack or fly.

Privacy policy

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Carry-On Chart — Privacy Policy

Effective 26 September 2026. Unify Dynamics LLC ("we", "us"), Menlo Park, California.

What Carry-On Chart is. Carry-On Chart is a connector (an MCP server and REST API) that AI assistants and personal agents call on your behalf for a hand-curated airline carry-on size/weight chart — lookups, comparisons, a will-it-fit checker, a smallest-common-size calculator, and unit conversion. You interact with your assistant; the assistant sends us only the arguments needed for that one lookup or calculation.

What we receive. The arguments of each tool call — an airline name, a region, bag dimensions and a unit, or a list of airlines to compare — the technical headers needed to serve the request (an IP address or a client identifier supplied by the assistant, and a Pro API key if you have one), and standard server logs.

Everything is answered or computed from a bundled, hand-curated reference file and nothing is stored. No request is forwarded to any third party — there is no upstream call at all, live or otherwise — and no query is logged in request bodies, recorded, or used to train anything.

What we do not receive or store. We do not receive your conversation with the assistant, your name, your booking details, or your actual luggage — only the airline names and bag dimensions you or your assistant type into a lookup. We do not build a profile from your queries. Rate-limit counters (a client identifier and timestamps) are held in memory for at most 24 hours. Hosting-provider access logs, which contain IP addresses and request paths but not request bodies, are retained for up to 30 days for security and abuse prevention.

Sub-processors. None — the entire dataset is bundled with the server and answered locally. Hosting: Vercel (United States regions).

Legal bases and your rights. Our processing is necessary to provide the service you request through your assistant. Because we store no personal data beyond short-lived logs, requests to access, correct or delete personal data are usually satisfied automatically; you can still contact agent@connectorbay.com and we will respond within 30 days. We do not sell or share personal information and do not use your data to train models.

Children. Carry-On Chart is a general-audience service operated by the adult using the assistant.

Changes. We will post changes here with a new effective date.

Terms of service

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Carry-On Chart — Terms of Service

Effective 26 September 2026. These terms govern use of the Carry-On Chart connector ("the Service") operated by Unify Dynamics LLC ("we", "us").

  1. The Service. Carry-On Chart returns a hand-curated carry-on baggage size/weight chart for 60 major airlines — dimension/weight/personal-item lookups, comparisons, a will-it-fit checker, a compute-only smallest-common-size tool, and unit conversion. It is accessed through an AI assistant or directly over MCP or HTTP.
  2. General reference, not a live or guaranteed feed. Airline baggage policy changes frequently, varies by route, aircraft, fare class and region, and is ultimately decided by the airline and its gate agents at the airport, not by this Service. Content reflects a published chart as of the build date stated in the Service's own data. We do not guarantee that any limit returned by this Service currently matches your specific airline, route, or fare.
  3. Your responsibility. You are solely responsible for verifying your airline's actual current carry-on policy before you pack or arrive at the airport. Reliance on this Service alone, without checking the airline directly, is entirely at your own risk, including any gate-check fee or denied boarding of an oversized bag.
  4. Acceptable use. Automated use within the published rate limits is welcome.
  5. Availability. The Service is provided "as is" without warranty. We may change, limit or discontinue it at any time, and covered airlines may change between versions.
  6. Data. Our Privacy Policy describes what we process. In short: your query is answered or computed from a bundled reference file, and nothing is stored.
  7. Pro keys. Optional Pro API keys are issued at our discretion, are personal to the holder and may be revoked for abuse.
  8. Liability. To the fullest extent permitted by law, Unify Dynamics LLC is not liable for any loss, including a gate-check fee, excess-baggage fee, or denied boarding, arising from use of or reliance on this Service. Our total liability is limited to US $100.
  9. Governing law. California law; venue in San Mateo County, California.
  10. Contact. Unify Dynamics LLC · agent@connectorbay.com · https://connectorbay.com/carryonchart

Support

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Carry-On Chart support

Email agent@connectorbay.com. We answer within two business days.

When you report a problem, include the question you asked your agent, roughly when, and which agent you used (for example Claude, ChatGPT or Gemini). Never send us passwords, account numbers or ID numbers. Carry-On Chart never asks for them.

Get Carry-On Chart

Free · No sign-in · Read-only

Streamable HTTP, stateless, no authentication. Paste the endpoint into any MCP-capable agent.

https://carryonchart.connectorbay.com/mcp
{
  "mcpServers": {
    "carryonchart": {
      "type": "http",
      "url": "https://carryonchart.connectorbay.com/mcp"
    }
  }
}