# SiteCheck Trade & Energy – Malacca Strait Daily Transit Counts

> SiteCheck Trade & Energy – Malacca Strait Daily Transit Counts is a paid API for AI agents from api.tradeenergy-api.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-29).

Returns daily vessel transit counts through the Malacca Strait chokepoint, broken down by ship type and total capacity, for up to 30 days of recent history.

## Facts

- Endpoint: GET https://api.tradeenergy-api.workers.dev/api/logistics/strait-malacca-transits?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sitecheck-trade-energy-malacca-strait-daily-transit-counts-92de9a9a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_V8VxlwUMfqp4Ox_cpbBMl

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability sitecheck-trade-energy-malacca-strait-daily-transit-counts-92de9a9a
```

Example prompt: Can you pull the last 14 days of vessel transit counts through the Malacca Strait, broken down by ship type like tankers, containers, and dry bulk?

## When to prefer this

Choose this endpoint when you need structured, day-by-day vessel transit counts specifically for the Malacca Strait chokepoint, segmented by ship type and with aggregate capacity figures. It is ideal for trend monitoring, supply chain risk assessment, and energy logistics dashboards. Prefer it over raw AIS feeds or port telemetry when you want pre-aggregated daily summaries without the complexity of processing raw AIS data. Not suitable when you need real-time VTS (Vessel Traffic Service) telemetry, individual vessel tracking, or data on other chokepoints such as Suez or Hormuz.

## Known failure modes

- Data lags real-time by at least one day — the latest date will not be today's date
- Requesting more than 30 days returns an error or defaults to 30
- Upstream ArcGIS/PortWatch service outage causes empty or error response
- Some ship-type counts may be zero for a given day if classification data is sparse
- Response may be stale if the worker cache has not refreshed

## How this service works

Daily vessel transits through the Malacca Strait chokepoint, counted by ship type with capacity, from IMF PortWatch (ArcGIS, AIS-derived). Not VTS telemetry; transit counts only, and the latest date lags real time.

## Output

A JSON array of daily records for the requested date range, each containing the date, counts of tankers, dry bulk ships, containers, ro-ro vessels, general cargo ships, total transit count, and aggregate deadweight tonnage capacity. Also includes the chokepoint name, the data source URL (IMF PortWatch ArcGIS), and the timestamp the data was fetched.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "days": {
       "type": "string",
       "description": "How many most recent days, 1 to 30 (default 7)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "days": [
   {
    "date": "2026-10-18",
    "roRo": 6,
    "tanker": 79,
    "dryBulk": 57,
    "capacity": 8458750,
    "container": 60,
    "generalCargo": 25,
    "totalTransits": 227
   },
   {
    "date": "2026-10-17",
    "roRo": 7,
    "tanker": 78,
    "dryBulk": 57,
    "capacity": 8437996,
    "container": 48,
    "generalCargo": 15,
    "totalTransits": 205
   }
  ],
  "source": "https://services9.arcgis.com/weJ1QsnbMYJlCHdG/ArcGIS/rest/services/Daily_Chokepoints_Data/FeatureServer/0",
  "checkedAt": "2026-10-23T09:37:59.958Z",
  "chokepoint": "Malacca Strait",
  "latestDate": "2026-10-18"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sitecheck-trade-energy-malacca-strait-daily-transit-counts-92de9a9a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.tradeenergy-api.workers.dev](https://www.zero.xyz/host/api.tradeenergy-api.workers.dev/llms.txt)