Introduction
In the fast-paced world of maritime logistics, having access to real-time data is crucial for optimizing operations, ensuring compliance, and enhancing decision-making. The Vessels API offers a comprehensive suite of RESTful endpoints that empower developers, startups, and enterprise teams with instant access to global maritime vessel tracking data powered by AIS (Automatic Identification System). This blog post will delve into the capabilities of the Vessels API, focusing on RoRo (Roll-on/Roll-off) ship tracking, and how it can transform your maritime operations.
Why Choose Vessels API?
The Vessels API stands out in the maritime data landscape for several reasons:
- 18 REST endpoints covering vessel search, live tracking, fleet operations, port intelligence, and IMO CII emissions scoring.
- One API key and one base URL, simplifying authentication and usage.
- Consistent JSON envelope on every response, ensuring ease of integration.
- Global AIS coverage with near real-time refresh rates.
- Scalable solutions suitable for indie developers to enterprise fleets.
With a 7-day free trial available on all plans, you can explore the full potential of the Vessels API without any commitment.
Key Endpoints for RoRo Ship Tracking
RoRo vessels are essential for transporting vehicles and heavy equipment across oceans. The following endpoints are particularly relevant for tracking and managing RoRo ships:
- GET /vessels/search
- GET /vessels/track
- GET /vessels/nearby
- POST /vessels/fleet
- GET /ports/congestion
- GET /ports/data
1. Vessel Search
The GET /vessels/search endpoint allows you to find any vessel by name, IMO, or MMSI. This is particularly useful for logistics teams needing to quickly identify RoRo vessels in their fleet.
curl -H "X-API-Key: YOUR_API_KEY" "https://vessels-api.com/api/V1/vessels/search?query=RoRo&flag=Panama"
Example Response:
{
"data": {
"vessels": [
{
"imo": "9122556",
"mmsi": "309374000",
"name": "RoRo Vessel 1",
"flag": "Panama",
"vessel_type": "RoRo",
"gross_tonnage": 30000,
"deadweight_tonnage": 20000,
"year_built": 2010,
"length_m": 200,
"width_m": 30
}
],
"pagination": {
"current_page": 1,
"per_page": 1,
"total": 1,
"last_page": 1
}
}
}
Key Fields Explained:
- imo: International Maritime Organization number, a unique identifier for the vessel.
- mmsi: Maritime Mobile Service Identity, used for communication.
- name: The vessel's name.
- flag: The country under which the vessel is registered.
- vessel_type: Type of vessel, in this case, RoRo.
- gross_tonnage: Total internal volume of the vessel.
- deadweight_tonnage: Maximum weight the vessel can safely carry.
- year_built: Year the vessel was constructed.
- length_m and width_m: Dimensions of the vessel.
2. Live Vessel Tracking
The GET /vessels/track endpoint provides live position data, including up to 168 hours of position history, active routes, predicted ETAs, and weather conditions. This is invaluable for fleet managers monitoring RoRo vessels.
curl -H "X-API-Key: YOUR_API_KEY" "https://vessels-api.com/api/V1/vessels/track?mmsi=258785000&hours=48"
Example Response:
{
"data": {
"vessel": {
"imo": "9122556",
"mmsi": "309374000",
"name": "RoRo Vessel 1"
},
"current_position": {
"latitude": -34.60,
"longitude": -58.38,
"speed_knots": 15,
"course_degrees": 90,
"heading_degrees": 90,
"navigational_status": "Underway",
"timestamp_utc": "2023-10-01T12:00:00Z",
"destination": "Port of Los Angeles",
"eta": "2023-10-05T08:00:00Z"
},
"position_history": [...],
"route": {
"departure_port": "Port of Rotterdam",
"departure_time": "2023-10-01T10:00:00Z",
"destination_port": "Port of Los Angeles",
"eta": "2023-10-05T08:00:00Z",
"distance_nm": 5000,
"avg_speed_knots": 15
},
"last_port_visits": [...]
}
}
Key Fields Explained:
- current_position: Contains real-time data about the vessel's location, speed, and navigational status.
- route: Details about the vessel's journey, including departure and destination ports, ETA, and distance remaining.
- position_history: Historical data that can be used for analytics and reporting.
3. Nearby Vessels
The GET /vessels/nearby endpoint allows you to find all vessels within a specified radius of a given latitude and longitude. This can be useful for port operators and logistics teams to monitor nearby RoRo vessels.
curl -H "X-API-Key: YOUR_API_KEY" "https://vessels-api.com/api/V1/vessels/nearby?latitude=-34.60&longitude=-58.38&radius=30"
Example Response:
{
"data": {
"center": {
"latitude": -34.60,
"longitude": -58.38
},
"radius_nm": 30,
"total": 5,
"vessels": [
{
"imo": "9122556",
"mmsi": "309374000",
"name": "RoRo Vessel 1",
"ship_type": "RoRo",
"position": {
"latitude": -34.60,
"longitude": -58.38,
"timestamp_utc": "2023-10-01T12:00:00Z"
},
"distance_nm": 5,
"speed_knots": 15,
"course_degrees": 90,
"navigational_status": "Underway"
}
]
}
}
Key Fields Explained:
- total: Total number of vessels found within the specified radius.
- vessels: An array of vessels, each containing their current position and navigational status.
4. Fleet Operations
The POST /vessels/fleet endpoint allows you to batch request positions, routes, and statistics for multiple vessels in one go. This is particularly useful for fleet managers overseeing multiple RoRo vessels.
curl -X POST -H "X-API-Key: YOUR_API_KEY" -H "Content-Type: application/json" -d '{"vessels":[{"imo":"9122556"},{"mmsi":"309374000"}],"include_positions":true}' "https://vessels-api.com/api/V1/vessels/fleet"
Example Response:
{
"data": {
"fleet": {
"total_vessels": 2,
"vessels_at_sea": 1,
"vessels_in_port": 1
},
"vessels": [
{
"imo": "9122556",
"mmsi": "309374000",
"name": "RoRo Vessel 1",
"position": {
"latitude": -34.60,
"longitude": -58.38
},
"route": {
"departure_port": "Port of Rotterdam",
"destination_port": "Port of Los Angeles"
}
}
]
}
}
Key Fields Explained:
- total_vessels: Total number of vessels in the fleet.
- vessels_at_sea and vessels_in_port: Counts of vessels based on their current status.
- vessels: Detailed information about each vessel in the fleet.
5. Port Congestion
The GET /ports/congestion endpoint provides real-time congestion snapshots and wait-time statistics for a specific port. This is crucial for logistics teams planning RoRo vessel arrivals and departures.
curl -H "X-API-Key: YOUR_API_KEY" "https://vessels-api.com/api/V1/ports/congestion?port_id=ARBUE&period=7d"
Example Response:
{
"data": {
"port_id": "ARBUE",
"port_name": "Port of Buenos Aires",
"period": "7d",
"snapshot": {
"vessels_in_anchorage": 5,
"vessels_at_berth": 3
},
"statistics": {
"avg_wait_time_hours_last_7d": 2,
"max_wait_time_hours_last_7d": 5,
"avg_berth_time_hours_last_7d": 3,
"port_calls_count": 50
}
}
}
Key Fields Explained:
- vessels_in_anchorage: Number of vessels waiting at anchor.
- vessels_at_berth: Number of vessels currently docked.
- avg_wait_time_hours_last_7d: Average wait time for vessels over the past week.
- port_calls_count: Total number of port calls in the specified period.
6. Port Data
The GET /ports/data endpoint provides detailed information for a single port, including live vessel counts. This is essential for understanding the operational capacity of ports handling RoRo vessels.
curl -H "X-API-Key: YOUR_API_KEY" "https://vessels-api.com/api/V1/ports/data?port=ARBUE"
Example Response:
{
"data": {
"port_id": "ARBUE",
"name": "Port of Buenos Aires",
"country": "Argentina",
"latitude": -34.60,
"longitude": -58.38,
"timezone": "UTC-3",
"vessels_in_port": 3,
"vessels_expected": 5
}
}
Key Fields Explained:
- vessels_in_port: Current number of vessels docked at the port.
- vessels_expected: Number of vessels expected to arrive soon.
Conclusion
The Vessels API provides a robust and comprehensive solution for tracking RoRo vessels and managing maritime logistics. With its extensive range of endpoints, developers can easily integrate real-time data into their applications, enhancing operational efficiency and decision-making.
Whether you are a fleet manager, logistics startup, or port operator, the Vessels API can help you navigate the complexities of maritime operations. Don't miss out on the opportunity to leverage this powerful tool.
Get started with Vessels API today and transform your maritime data capabilities!




