This is not our API. This repository is an independent, third-party profile of a company's publicly available API surface, maintained by API Evangelist. API Evangelist does not operate, host, resell, or support this company's APIs, and is not affiliated with or endorsed by the company unless stated on the profile.
Where the information came from. Everything here is assembled from material a member of the public can reach with a browser and no credentials — the company's own website, developer portal and documentation, the specifications it publishes for public use (OpenAPI, AsyncAPI, JSON Schema,
apis.json,llms.txtand similar), its public repositories, and its public status, pricing and changelog pages. Nothing here is obtained by breaching a system, defeating an access control, or using credentials of any kind.The rating is an independent assessment. The Kin Score and Agent Readiness rating are independently calculated scores of a company's public API artifacts, produced by API Evangelist against a published rubric. They are not certifications, endorsements, security assessments, or audits, and they score published artifacts — not the quality, safety, or security of the software.
Corrections, re-scores, and removal are free. No partnership, contract, or purchase is required, and you do not need to justify the request.
- Something wrong? Open an issue on this repository, or email info@apievangelist.com.
- Published something new? Ask for a re-score and we will re-run the rating.
- Want the listing taken down? Say so and we will honor it. The profile is reduced to your company name, a factual description, and a link to your own site, and the company is recorded as unrated — never scored zero for having asked.
Response times. Acknowledgement within one business day; removal or restriction within two business days; corrections and re-scores within five business days.
On a security or compliance team? Email info@apievangelist.com with security in the subject line and you will get a person, not a form. We will tell you exactly which public URLs this profile was built from so your team can see the same surface we did, and we will take the listing down on request while you work through it.
Full detail: Where this data comes from
Kpler is a commodities intelligence and maritime data platform that tracks cargoes, vessels, and trade flows across oil, refined products, LNG, LPG, and dry bulk markets. Kpler owns MarineTraffic and FleetMon (acquired 2023) and acquired Spire's maritime AIS business (2025), making it one of the largest vessel tracking operations in the world — a 9,000+ station terrestrial, satellite, and roaming AIS network tracking 350,000+ vessels daily.
APIs.json: https://raw.githubusercontent.com/api-evangelist/kpler/refs/heads/main/apis.yml
Kpler's APIs are real, publicly documented, but customer-gated. There is no self-serve signup or published pricing:
- The Direct Access user guides (
liquids.dev.kpler.com,lng.dev.kpler.com,lpg.dev.kpler.com,coal.dev.kpler.com,freight.dev.kpler.com), the developer portal (developers.kpler.com), the Python SDK docs, and a public Postman workspace are all publicly visible. - Actually calling the APIs requires client credentials issued with a commercial Kpler subscription (Basic Auth, or a bearer token from
POST /login). - The OpenAPI document in this repo (openapi/kpler-openapi.yml) is flagged
x-endpoints-modeled— it covers only endpoints and parameters confirmed from public sources (including the documented examplehttps://api-dry.kpler.com/v1/trades?size=6&columns=trade_id,vessel_name,start,end&fromZones=Europe&toZones=Asia), and does not fabricate the full gated surface.
- Vessel Tracking
- Maritime
- Commodities
- Supply Chain
- AIS
- Trade Flows
- Shipping
- Energy
- Created: 2026-07-11
- Modified: 2026-07-11
Direct Access REST API for the Liquids platform (crude oil, CPP, DPP) — trades, flows, vessels, port calls, ship-to-ship transfers, storage/inventories, contracts, prices, and outages.
- Human URL: https://liquids.dev.kpler.com/
- Base URL:
https://api.kpler.com
Direct Access REST API for the LNG platform — liquefied natural gas trades, cargo flows, vessels, and port calls.
- Human URL: https://lng.dev.kpler.com/
- Base URL:
https://api-lng.kpler.com
Direct Access REST API for the LPG platform.
- Human URL: https://lpg.dev.kpler.com/
- Base URL:
https://api-lpg.kpler.com
Direct Access REST API for the Dry platform — coal and dry bulk trades, flows, and vessel movements.
- Human URL: https://coal.dev.kpler.com/
- Base URL:
https://api-dry.kpler.com
Freight analytics across the Liquids, Gas, and Dry platforms — freight metrics, fleet metrics, congestion, and ballast capacity.
- Human URL: https://freight.dev.kpler.com/
- Base URL:
https://api.kpler.com
Real-time and historical vessel tracking — vessel and fleet positions, historical tracks, port calls, expected arrivals, voyage forecasts and ETAs, port congestion, vessel particulars, photos, search, and reverse geocoding. api_key auth, credit-metered.
- Human URL: https://servicedocs.marinetraffic.com/
- Base URL:
https://services.marinetraffic.com/api
GraphQL vessel intelligence on 220,000+ vessels — particulars plus six levels of ownership for due diligence and compliance. Contact-sales; reference docs delivered to customers.
Global AIS vessel-position feed (launched September 2025, replacing MarineTraffic AIS and Spire Maritime feeds) at ~5-second average latency. Delivered via API, NMEA (TCP), Kafka, or custom extract under enterprise contract. No public WebSocket — see review.yml.
FN: Kin Lane Email: kin@apievangelist.com