A side-by-side look at the Fr24api MCP and Freightutils MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Fr24api MCP for travel & transportation work as a local process; choose Freightutils MCP for travel & transportation as a local process. You can also run both side by side in one mcpServers block.
FR24_API_KEY.get_live_flights_positions_light, get_live_flights_positions_full, get_live_flights_count.cbm_calculator, chargeable_weight_calculator, ldm_calculator.Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Travel & Transportation | Travel & Transportation |
| Quality signal | 56/100 · Good | 65/100 · Great |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | API key required | No auth required |
| Pricing | BYOK (pay the provider) | Free |
| Required env vars | FR24_API_KEY | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 30 | 7 |
| Directory activity | 2 views 0 installs 0 upvotes | 3 views 0 installs 0 upvotes |
| Tools | 13 | 25 |
| Full listing | View Fr24api MCP | View Freightutils MCP |
get_live_flights_positions_lightGet real-time aircraft positions with basic information.get_live_flights_positions_fullGet real-time aircraft positions with comprehensive flight details.get_live_flights_countGet count of live flights matching criteria.get_historic_flights_positions_fullGet historical flight positions with full details.get_historic_flights_positions_lightGet historical flight positions with basic information.get_historic_flights_countGet count of historical flights.get_flight_summary_fullGet comprehensive flight takeoff/landing information.get_flight_summary_lightGet essential flight takeoff/landing information.get_flight_summary_countGet count of flights in summary query.get_flight_tracksGet detailed positional tracks for a specific flight.get_airline_infoGet airline information by ICAO code.get_airport_info_lightGet basic airport information.cbm_calculatorCalculate cubic metres (CBM) for a shipment from per-piece dimensions. CBM is the standard volume unit in international shipping: 1 CBM = 1m x 1m x 1m = 1,000 litres, and ocean freight prices per "freight tonne" (1 CBM or 1,000 kg, whichever is greater).
Behavior: deterministic — identical inputs always return identical figures; total volume = pieces x per-piece CBM, with conversions to cubic feet, cubic inches and litres included. Missing or non-positive dimensions error with a validation message naming the parameter. Rate-limited (anonymous use: 25 requests/day per IP): a 429 error body carries retry_after_seconds and a Retry-After header — back off and retry, or call get_subscribe_link for higher limits.
Returns: cbm_per_piece, total_cbm, cubic_feet, litres, cubic_inches and pieces under result, plus confidence, _source and citation (the FreightUtils v1 response envelope).
Related: chargeable_weight_calculator (air billing weight from the same dims), consignment_calculator (multi-line totals), unit_converter (single conversions), shipment_summary (full composite analysis).chargeable_weight_calculatorCalculate air freight chargeable weight — the greater of actual gross weight and volumetric weight, which is what airlines bill. Volumetric weight (kg) = (L x W x H in cm) / divisor; the IATA-standard divisor is 6,000 (1 CBM = 166.67 kg), while express integrators (DHL, FedEx, UPS) typically use 5,000.
Behavior: deterministic; per-piece volumetric weight is rounded to 2 decimal places before totalling; basis reports which weight governs ("volumetric" = cargo is light for its size, "actual" = dense). Air mode only — sea W/M (1 CBM = 1,000 kg) is covered by consignment_calculator with mode=sea. Missing or non-positive inputs error with the failing parameter named. Rate-limited (anonymous use: 25 requests/day per IP): a 429 error body carries retry_after_seconds and a Retry-After header — back off and retry, or call get_subscribe_link for higher limits.
Returns: chargeable_weight_kg, basis, volumetric_weight_kg (total and per piece), gross_weight_kg, cbm, ratio, factor and pieces under result; normalized_input echoes the interpreted inputs and any defaults applied; plus confidence, _source and citation (the FreightUtils v1 response envelope).
Related: cbm_calculator (volume only), consignment_calculator (multi-line, all modes), uld_lookup (the equipment the freight flies in).ldm_calculatorCalculate loading metres (LDM) for European road freight — how much trailer length a pallet load occupies. 1 LDM = 1 linear metre of a 2.4m-wide trailer; a standard artic is 13.6 LDM.
Provide a pallet preset OR custom length_mm + width_mm — omitting both errors with a usage hint. Behavior: deterministic; stackable=true with stack_height 2 or 3 divides the floor footprint accordingly; fits reports whether the load fits the chosen vehicle's LENGTH (give weight_kg to also see total_weight_kg against the vehicle's max payload); utilisation_percent is of the vehicle's length. Rate-limited (anonymous use: 25 requests/day per IP): a 429 error body carries retry_after_seconds and a Retry-After header — back off and retry, or call get_subscribe_link for higher limits.
Returns: ldm, vehicle (name, length_m, max_payload_kg), utilisation_percent, pallet_spaces (used/available), total_weight_kg, fits and warnings under result, plus confidence, _source and citation (the FreightUtils v1 response envelope).
Related: vehicle_lookup (the trailer specs behind the vehicle presets), pallet_fitting_calculator (boxes onto one pallet), consignment_calculator (mixed lines including LDM).adr_lookupLook up European road dangerous-goods (ADR 2025) reference data for a substance: hazard class, classification code, packing group, labels, special provisions, limited/excepted quantities, transport category, tunnel restriction code and Kemler (hazard identification) number. Covers 2,939 entries across all 9 hazard classes, from UNECE ADR 2025 (ECE/TRANS/352).
Provide exactly ONE of: un_number (exact lookup — returns every packing-group variant of that UN number), search (case-insensitive partial match on the proper shipping name), or hazard_class (all entries in a class or division). un_number is normalised — "1203", "UN1203" and "un 1203" are equivalent, and normalized_input reports the correction; explosives keep their leading zero ("0004").
Behavior: read-only reference lookup; name searches return up to 50 entries, class filters up to 100. An unknown UN number or a search with no hits errors with the API's NOT_FOUND body and a retry hint. 28 Table A rows carry a scope remark instead of a packing group: those return packing_group null plus not_subject_to_adr (with conditions_ref, e.g. "5.5.3" for UN 1845 dry ice) or carriage_prohibited, and table_a_remark preserves the verbatim Table A text. Rate-limited (anonymous use: 25 requests/day per IP): a 429 error body carries retry_after_seconds and a Retry-After header — back off and retry, or call get_subscribe_link for higher limits.
Returns: count and results[] — per entry: un_number, proper_shipping_name, class, classification_code, packing_group, labels, special_provisions, limited_quantity, excepted_quantity, transport_category, tunnel_restriction_code, hazard_identification_number, variant_index/variant_count and, on scope-flagged rows, not_subject_to_adr/carriage_prohibited/conditions_ref/table_a_remark — under result, plus confidence, _source and citation (the FreightUtils v1 response envelope).
Limitations: a factual compilation of the ADR table, not legal or compliance advice; classification remains the consignor's responsibility — verify against the current UNECE ADR text.
Related: adr_lq_eq_check (checks quantities against the LQ/EQ values returned here), adr_exemption_calculator (1.1.3.6 small-load points), consignment_calculator (flags dangerous-goods lines by UN number).adr_exemption_calculatorCalculate ADR 1.1.3.6 "small load" exemption points for a dangerous-goods load. Each substance's transport category (0-4) sets a points multiplier (category 1 x50, 2 x3, 3 x1, 4 x0; the nine ADR 1.1.3.6.3 note-a entries UN 0081/0082/0084/0241/0331/0332/0482/1005/1017 are x20 with a 50 kg per-transport-unit cap); points = quantity x multiplier, and a load totalling 1,000 points or less qualifies for reduced ADR requirements. Transport category 0 substances can NEVER use this exemption — has_category_zero flags them.
Provide un_number + quantity for a single substance, or items[] for a mixed load (items takes precedence if both are given). Quantities are in kg or litres per the substance's ADR unit.
Multi-variant UNs: a UN number with more than one ADR Table A row (packing group / concentration variant — e.g. UN 1789 PG II vs PG III have different transport categories) needs packing_group (I|II|III) or variant_index (from adr_lookup) to pin one row. A packing_group that still leaves several rows is enough when those rows agree on class, transport category, scope and the 1.1.3.6.3 counted dimension (UN 1790 PG I: two concentration bands, both category 1) — the verdict is returned with items[].equivalent_variants + variant_note naming the rows it holds for; only when the rows DISAGREE (UN 2215 PG III: MOLTEN is category 0, the solid category 3) does it still ask for variant_index, and candidates[] then lists only that packing group's rows. With no disambiguator at all: a single-line call, or a load where EVERY line is ambiguous, returns blocking_errors[AMBIGUOUS_UN_VARIANT] + human_review_required + candidates[] (each candidate's item_index, un_number, variant_index, packing_group, proper_shipping_name, transport_category, multiplier) and NO verdict; a MIXED load withholds only the ambiguous line (items[].withheld true, points null, row fields null) while every other line keeps its points; total_points is null (1.1.3.6.4 sums every line, one term is unknown) and exempt is null UNLESS the resolved lines alone already disqualify the load — a CARRIAGE PROHIBITED entry, a category 0 entry, a per-substance maximum exceeded, or a partial sum already over 1,000 — in which case exempt is false with the ladder message (and carriage_prohibited true where that is the reason), because no packing group can undo those. warnings state the resolved lines' partial sum, candidates[] carry expected_unit (the 1.1.3.6.3 counted dimension — the only difference for UN 3375 PG II, liquid in L vs solid in kg), and the envelope carries human_review_required + candidates[] plus one AMBIGUOUS_UN_VARIANT warning per withheld line. Never a silently guessed row. Single-row UNs are unchanged.
Scope verdicts: Table A rows listed "NOT SUBJECT TO ADR" or "CARRIAGE PROHIBITED" never enter the points math. An all-not-subject load (e.g. UN 1845 dry ice) returns not_subject_to_adr true with a dedicated message ("Not subject to ADR (road). Section 5.5.3 applies: ...") and, for dry ice, conditions[] quoting the ADR 2025 section 5.5.3 requirements verbatim (ventilation, package marking, warning mark, documentation, training). A load containing a CARRIAGE PROHIBITED entry returns exempt false with carriage_prohibited true. In a mixed load, not-subject items are excluded from the points and the exclusion is stated in warnings.
Behavior: deterministic points arithmetic over ADR 2025 reference data; a UN that cannot be found returns blocking_errors (NOT_FOUND); exempt is the overall verdict. Rate-limited (anonymous use: 25 requests/day per IP): a 429 error body carries retry_after_seconds and a Retry-After header — back off and retry, or call get_subscribe_link for higher limits.
Returns: items[] (each with packing_group, variant_index, transport_category, multiplier, points, quantity_unit/quantity_basis/expected_unit when a unit or basis was declared, scope flags where applicable, withheld + ambiguity_reason on an unpinned multi-variant line, and equivalent_variants + variant_note when a packing group resolved by equivalence), total_points (NULL when no verdict was reached), threshold (1000), exempt (NULL when no verdict was reached — never false as a stand-in), has_category_zero, has_quantity_exceedance, warnings, message, human_review_required + candidates[] when any line is withheld, and — on scope verdicts — not_subject_to_adr/conditions_ref/conditions[]/carriage_prohibited under result — or, when every line is ambiguous, human_review_required + candidates[] with blocking_errors, plus confidence, _source and citation (the FreightUtils v1 response envelope).
Limitations: a deterministic calculation over reference data, not legal advice — even exempt loads keep core duties (packaging, marking, documentation), and mixed-packing rules still apply; verify against the current UNECE ADR text.
Related: adr_lookup (per-substance data incl. transport category + variant_index), adr_lq_eq_check (the LQ/EQ relief routes instead of 1.1.3.6).adr_lq_eq_checkCheck whether dangerous goods qualify for ADR Limited Quantity (LQ, ADR 3.4) or Excepted Quantity (EQ, ADR 3.5) relief. LQ compares each item's per-inner-packaging quantity against that substance's LQ maximum; EQ resolves the substance's E-code (E0-E5) and checks the per-inner limit, plus the per-outer limit when inner_packaging_qty is given.
Provide mode ("lq" or "eq") and 1-20 items, each with un_number, quantity and unit — ml or L for liquids, g or kg for solids; quantity is per INNER packaging, not the whole load.
Unit families: column (7a) states the limit in ONE dimension — a mass for some entries, a volume for others — and ADR supplies no density, so a mass quantity against a volume limit (or the reverse) CANNOT be compared. Those items return status 'inconclusive' with the dimension named, never a pass or a fail, and a batch holding any inconclusive item never reads overall_status 'qualifies'. Send the quantity in the unit given by lq_limit_unit to get a verdict. Multi-variant UNs: a UN number with more than one ADR Table A row (packing group / concentration variant — e.g. UN 1789 PG II LQ 1 L vs PG III LQ 5 L) needs packing_group (I|II|III) or variant_index (from adr_lookup) on that item to pin one row. A packing_group that still leaves several rows is enough when those rows agree on class, column (7a), column (7b) and scope (UN 1790 PG I: two concentration bands, both LQ 0 / E0) — the item is answered with equivalent_variants + variant_note naming the rows it holds for; only when the rows DISAGREE does it still ask for variant_index, and candidates[] then lists only that packing group's rows. With no disambiguator at all: a single-item call, or a batch where EVERY item is ambiguous, returns blocking_errors[AMBIGUOUS_UN_VARIANT] + human_review_required + candidates[] (each candidate's item_index, un_number, variant_index, packing_group, proper_shipping_name, limited_quantity, excepted_quantity) and NO verdict; a MIXED batch withholds only the ambiguous item (status 'withheld', withheld true, row fields null) while the other items are answered, overall_status never reads 'qualifies' while an item is withheld, summary carries withheld, and the envelope carries human_review_required + candidates[] plus one AMBIGUOUS_UN_VARIANT warning per withheld item. Never a silently checked packing group. Single-row UNs are unchanged.
Behavior: deterministic reference check; each item gets a status and reason (an LQ value of "0" or code E0 means the relief is not permitted for that substance), with overall_status and summary counts across the batch. Table A rows listed "NOT SUBJECT TO ADR" (e.g. UN 1845 dry ice) get item status not_subject — outside ADR scope, neither a pass nor a fail — and an all-not-subject batch returns overall_status not_applicable; "CARRIAGE PROHIBITED" rows are not_permitted with the prohibition stated in reason. Rate-limited (anonymous use: 25 requests/day per IP): a 429 error body carries retry_after_seconds and a Retry-After header — back off and retry, or call get_subscribe_link for higher limits.
Returns: mode, overall_status (qualifies | does_not_qualify | partial | not_applicable | inconclusive), items[] (un_number, variant_index, substance, class, packing_group, lq_limit or eq_code, quantity_entered, status — within_limit | exceeds_limit | not_permitted | not_subject | inconclusive | withheld — reason, scope flags where applicable, withheld + ambiguity_reason on a withheld item, and equivalent_variants + variant_note when a packing group resolved by equivalence), summary {total_items, qualifying, exceeding, not_permitted, not_subject?, inconclusive?, withheld?}, the ADR chapter references, and human_review_required + candidates[] when any item is withheld — all under result — or, when every item is ambiguous, human_review_required + candidates[] with blocking_errors, plus confidence, _source and citation (the FreightUtils v1 response envelope).
Limitations: a quantity-threshold check only — LQ/EQ relief also requires packaging, marking and documentation conformity that this tool does not assess; not legal advice, verify against the current UNECE ADR text.
Related: adr_lookup (the per-substance LQ/EQ values + variant_index), adr_exemption_calculator (the 1.1.3.6 load-points route instead).airline_lookupSearch 6,357 airlines by name, IATA code, ICAO code, AWB prefix, or country. AWB prefixes are the first 3 digits of an air waybill number and identify the issuing carrier (e.g. 176 = Emirates).
Provide ONE parameter: query is a ranked fuzzy search across names and codes; iata / icao / prefix / country are exact filters.
Behavior: read-only; fuzzy query hits report their match quality through the envelope's confidence (basis match_quality, score 0-1) with a FUZZY_BEST_MATCH advisory naming the matched field; a query with no hits returns count 0 with a NO_MATCH advisory rather than an error. Rate-limited (anonymous use: 25 requests/day per IP): a 429 error body carries retry_after_seconds and a Retry-After header — back off and retry, or call get_subscribe_link for higher limits.
Returns: count and results[] — per airline: airline_name, iata_code, icao_code, awb_prefix[], callsign, country, has_cargo, aliases and per-record verification fields — under result, plus confidence, _source and citation (the FreightUtils v1 response envelope).
Limitations: this dataset's provenance is pending independent verification (the envelope's provenance_status says so) — confirm operationally critical codes with IATA/ICAO or the carrier.
Related: airport_lookup (searches AIRPORTS, not carriers), validate (checks an AWB number's check digit and names its airline from this dataset).container_lookupGet ISO shipping-container specifications, with optional load-fit maths. Covers 10 types: 20ft/40ft standard, 40ft and 45ft high-cube, 20ft/40ft reefer, 20ft/40ft open-top and 20ft/40ft flat-rack.
Provide type as a slug (e.g. "20ft-standard", "40ft-high-cube") for one container's record; omit it to list all 10. Add item dimensions (item_length_cm/width_cm/height_cm, optional item_weight_kg and item_quantity) to also compute how many such items fit.
Behavior: read-only reference data with per-record provenance (sources, audited_at, decision_rationale); an unknown type errors with the valid slug list. Fit calculations are geometric best-effort — they do not model load distribution, securing or mixed cargo. Rate-limited (anonymous use: 25 requests/day per IP): a 429 error body carries retry_after_seconds and a Retry-After header — back off and retry, or call get_subscribe_link for higher limits.
Returns: the container record — internal/external/door dimensions (cm), capacity_cbm, tare_weight_kg, max_gross_kg, max_payload_kg and euro/GMA pallet counts — under result, plus confidence, _source and citation (the FreightUtils v1 response envelope).
Limitations: manufacturer-typical specs, provenance pending independent verification (the envelope's provenance_status says so) — actual equipment varies by lessor and line; confirm against the carrier's equipment guide.
Related: validate (checks a container NUMBER's ISO 6346 check digit — not specs), cbm_calculator / consignment_calculator (the cargo volume to fill it), uld_lookup (the air-freight equivalent).hs_code_lookupSearch 6,940 WCO Harmonized System (HS 2022) commodity codes — the 6-digit international customs classification layer. The first 2 digits are the chapter, 4 the heading, 6 the subheading.
Provide ONE of: query (free-text description search, min 2 chars), code (2-6 digit lookup, returns the code plus its hierarchy), or section (Roman numeral I-XXI to browse a section).
Behavior: read-only; description search is keyword-based against official HS descriptions, so everyday product words can return zero rows — count 0 with an empty results[] is a valid answer (e.g. "laptop" and "computers" find nothing; "automatic data" matches the official phrasing "automatic data processing machines"); prefer the formal tariff wording. Rate-limited (anonymous use: 25 requests/day per IP): a 429 error body carries retry_after_seconds and a Retry-After header — back off and retry, or call get_subscribe_link for higher limits.
Returns: the query/code echo, count and results[] (hscode, description and hierarchy context) under result, plus confidence, _source and citation (the FreightUtils v1 response envelope).
Limitations: the 6-digit international level only — national tariff lines (8-10 digits) and duty rates are set per country; classification here is indicative, not a binding ruling.
Related: uk_duty_calculator (duty/VAT for a code found here), ics2_check (EU ENS goods-description quality — a different check entirely).incoterms_lookupLook up the 11 Incoterms 2020 trade rules — who pays for transport, insurance and customs clearance, and where risk transfers from seller to buyer. 7 rules work for any transport mode (EXW, FCA, CPT, CIP, DAP, DPU, DDP); 4 are sea/inland-waterway only (FAS, FOB, CFR, CIF).
Provide code for one rule, category (any_mode | sea_only) for a filtered list, or neither to list all 11. Behavior: read-only reference; an unknown code errors with the valid code list. Rate-limited (anonymous use: 25 requests/day per IP): a 429 error body carries retry_after_seconds and a Retry-After header — back off and retry, or call get_subscribe_link for higher limits.
Returns: the rule record — name, category, summary, seller_responsibility, buyer_responsibility, risk_transfer, cost_transfer, insurance, export/import clearance, best_for and watch_out — under result, plus confidence, _source and citation (the FreightUtils v1 response envelope).
Limitations: summarised guidance on ICC Incoterms 2020; the ICC publication is the binding text and specific contract wording prevails.
Related: uk_duty_calculator (accepts an incoterm when composing the CIF value), shipment_summary (composite analysis).pallet_fitting_calculatorCalculate how many identical boxes fit on a pallet: boxes per layer (trying 90-degree rotation when allowed), layer count within the max height, totals, volume utilisation and weight capping.
Behavior: deterministic geometric packing of one box size in aligned rows and columns — it does not model interlocked or mixed-orientation patterns; weight_limited reports when max_payload_kg caps the count below the geometric fit; pallet_deck_height_cm defaults to 15. Missing or non-positive dimensions error naming the parameter. Rate-limited (anonymous use: 25 requests/day per IP): a 429 error body carries retry_after_seconds and a Retry-After header — back off and retry, or call get_subscribe_link for higher limits.
Returns: boxes_per_layer, layers, total_boxes, orientation, boxes_per_row/col, usable_height_cm, utilisation_percent, total_box_volume_cbm, wasted_space_cbm and the weight fields under result, plus confidence, _source and citation (the FreightUtils v1 response envelope).
Limitations: a theoretical best-effort fit — real stacking obeys carton strength, overhang and load-stability rules it does not model.
Related: ldm_calculator (pallets into trailer length), vehicle_lookup (pallet capacity per vehicle), container_lookup (pallets into containers).unit_converterConvert freight and logistics units: weight (kg, lbs, oz, tonnes, short_tons, long_tons), volume (cbm, cuft, cuin, litres, gal_us, gal_uk), length (cm, inches, m, feet, mm), plus two freight-specific targets valid only FROM cbm — chargeable_kg (air volumetric weight at the IATA 6,000 divisor, 1 CBM = 166.67 kg) and freight_tonnes (sea W/M, 1 CBM = 1 freight tonne).
Behavior: deterministic; the response names both units and states the formula used. Cross-dimension conversions (e.g. kg to litres) and freight targets from a non-cbm source error with the accepted-unit list. Note: short ton (US) = 2,000 lb, long ton (UK) = 2,240 lb, metric tonne = 2,204.6 lb. Rate-limited (anonymous use: 25 requests/day per IP): a 429 error body carries retry_after_seconds and a Retry-After header — back off and retry, or call get_subscribe_link for higher limits.
Returns: input {value, unit, name}, result {value, unit, name}, formula and note under result, plus confidence, _source and citation (the FreightUtils v1 response envelope).
Related: cbm_calculator (dimensions to volume first), chargeable_weight_calculator (proper air billing weight with pieces and a custom divisor).Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
{
"mcpServers": {
"fr24api-mcp": {
"command": "npx",
"args": [
"-y",
"@flightradar24/fr24api-mcp"
],
"env": {
"FR24_API_KEY": "YOUR_FR24_API_KEY_HERE"
}
}
}
}
{
"mcpServers": {
"soapyred-freightutils-mcp": {
"command": "npx",
"args": [
"-y",
"freightutils-mcp"
]
}
}
}
