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Hormuz Strait Monitor

Free

Get real-time shipping and oil transit data for the Strait of Hormuz.

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Free · Opens the source repo

What Hormuz Strait Monitor does

The Hormuz Strait Monitor skill provides developers and analysts with access to real-time data regarding the crucial shipping transit through the Strait of Hormuz. This chokepoint is a significant artery for global oil supply, making it essential for users to stay informed about its status. The skill can fetch various data points, including current shipping traffic, oil price impacts, stranded vessels, and diplomatic developments, all sourced from the Hormuz Strait Monitor API.

When a user queries about the Strait of Hormuz, the skill processes the request to deliver relevant information. For instance, if a user asks about the current status of shipping through the strait, the skill retrieves and formats data such as whether the strait is open or closed, the number of vessels currently transiting, and any insurance risk levels associated with shipping in the area. This real-time information is vital for stakeholders in the oil and shipping industries, enabling them to make informed decisions based on the latest developments.

The skill is designed to be read-only, meaning it fetches public data without requiring any authentication. This makes it straightforward to integrate into applications that need to provide users with up-to-date information about the geopolitical and economic factors affecting oil transit through the Strait of Hormuz. The clear formatting of the data ensures that users can quickly grasp the situation, whether they are assessing risk levels or monitoring shipping traffic.

Overall, the Hormuz Strait Monitor skill is particularly useful for financial analysts, shipping companies, and energy market stakeholders who require accurate and timely information about one of the world's most critical maritime chokepoints.

When to use it

Use this skill when you need real-time updates on the status of the Strait of Hormuz and its impact on shipping and oil prices.

When not to use it

This skill is not suitable for detailed historical analysis or when authentication is required for accessing private data.

What you can build with it

Market Analysis

Financial analysts can use this skill to assess the impact of the Strait of Hormuz's status on global oil prices.

Shipping Risk Assessment

Shipping companies can retrieve real-time data to evaluate risks associated with transit through the Strait of Hormuz.

Crisis Monitoring

Users can track developments in the Strait of Hormuz during geopolitical tensions affecting maritime traffic.

How to install Hormuz Strait Monitor

View source

1. Install with the skills CLI

npx skills add himself65/finance-skills/hormuz-strait --agent claude-code

2. Or install it manually

Download the skill folder and drop it into ~/.claude/skills/ for all projects, or .claude/skills/ to scope it to one repo. Restart Claude Code so it picks up the new skill.

Anthropic's agentic coding CLI, and the reference implementation of Agent Skills. Drop a skill folder into ~/.claude/skills and Claude Code loads it automatically whenever a task matches the skill's description. Claude Code docs

Inside SKILL.md

Written by himself65

Hormuz Strait Monitor Skill

Fetches real-time status of the Strait of Hormuz from the Hormuz Strait Monitor dashboard API. Covers shipping transits, oil prices, stranded vessels, insurance risk, diplomatic status, global trade impact, and crisis timeline.

This skill is read-only. It fetches public dashboard data — no authentication required.


Step 1: Fetch Dashboard Data

Use curl to fetch the dashboard API:

curl -s https://hormuzstraitmonitor.com/api/dashboard

Parse the JSON response. The API returns { "success": true, "data": { ... }, "timestamp": "..." }.

If success is false or the request fails, inform the user the monitor is temporarily unavailable and suggest checking https://hormuzstraitmonitor.com directly.


Step 2: Identify What the User Needs

Match the user's request to the relevant data sections. If the user asks for a general status update, present all sections. If they ask about something specific, focus on the relevant section(s).

User RequestData SectionKey Fields
General status / "is Hormuz open?"straitStatusstatus, since, description
Ship traffic / transit countshipCountcurrentTransits, last24h, normalDaily, percentOfNormal
Oil price impactoilPricebrentPrice, change24h, changePercent24h, sparkline
Stranded / stuck vesselsstrandedVesselstotal, tankers, bulk, other, changeToday
Insurance / war riskinsurancelevel, warRiskPercent, normalPercent, multiplier
Cargo throughputthroughputtodayDWT, averageDWT, percentOfNormal, last7Days
Diplomatic situationdiplomacystatus, headline, parties, summary
Global trade impactglobalTradeImpactpercentOfWorldOilAtRisk, estimatedDailyCostBillions, affectedRegions, lngImpact, alternativeRoutes, supplyChainImpact
Crisis timeline / eventscrisisTimelineevents[] with date, type, title, description
Tanker freight rates / VLCC ratestankerRatescurrentRate, preCrisisRate, changePercent, route, vesselType, trend, unit
Latest newsnewstitle, source, url, publishedAt, description

Step 3: Present the Data

Format the results clearly for financial research. Adapt the presentation based on what the user asked for.

General status briefing (default)

When the user asks for a general update, present a concise briefing covering all key sections:

  1. Strait Status — lead with the current status (e.g., "OPEN", "RESTRICTED", "CLOSED"), how long it's been in that state, and the description
  2. Ship Traffic — current transits, last 24h count, and percent of normal
  3. Oil Price — Brent price with 24h change
  4. Stranded Vessels — total count broken down by type, with today's change
  5. Insurance Risk — risk level, war risk premium percentage, and multiplier vs. normal
  6. Cargo Throughput — today's DWT vs. average, percent of normal
  7. Diplomatic Status — current status, headline, and brief summary
  8. Global Trade Impact — percent of world oil at risk, estimated daily cost, and top affected regions
  9. Tanker Freight Rates — current VLCC rate on the benchmark route vs. pre-crisis baseline, with trend direction

Formatting guidelines

  • Use tables for structured data (vessel counts, affected regions, alternative routes)
  • Highlight abnormal values — if percentOfNormal is below 80% or above 120%, call it out
  • For oilPrice.sparkline, describe the trend (rising, falling, stable) rather than listing raw numbers
  • For throughput.last7Days, describe the trend direction
  • Show lastUpdated timestamp so the user knows data freshness
  • For news items, include the source and link
  • For crisis timeline events, present chronologically with event type labels

Risk assessment

Based on the data, provide a brief risk assessment:

Values are returned uppercase.

Insurance LevelInterpretation
NORMALNo elevated risk — shipping operating normally
ELEVATEDSome disruption concerns — monitor closely
HIGHSignificant risk — active disruption or credible threat
CRITICALSevere disruption — major impact on global oil supply
EXTREMEEffective closure — war risk premiums at multi-decade highs, most commercial traffic halted

If the strait status is anything other than fully open, highlight:

  • The estimated daily cost to global trade
  • Which regions are most affected and their oil dependency
  • Available alternative routes with additional transit days and cost
  • LNG impact if applicable
  • SPR (Strategic Petroleum Reserve) status in days

Step 4: Respond to the User

  • Lead with the most important information: strait status and any active disruption
  • Include data freshness (lastUpdated timestamp)
  • If the situation is elevated or worse, proactively include the global trade impact summary
  • Keep the response concise for routine "all clear" statuses; expand for active incidents
  • Add a disclaimer: data is sourced from Hormuz Strait Monitor and may have delays

Reference Files

  • references/api_schema.md — Complete API response schema with field descriptions and data types

Read the reference file when you need exact field names or data type details.

Frequently asked questions about Hormuz Strait Monitor

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