> ## Documentation Index > Fetch the complete documentation index at: https://docs.gdeltcloud.com/llms.txt > Use this file to discover all available pages before exploring further. # AIS-dark gaps > AIS-dark gaps — intervals where a vessel stopped broadcasting AIS then reappeared, derived from terrestrial AIS coverage. Each row is one gap with the last-known position before it went dark. Requires a plan with Maritime intelligence access (`can_use_maritime`) — the Corporate & Supply Chain plan and above. Forward-accruing: gaps begin accruing at launch (June 2026) — no historical backfill. Terrestrial AIS only (no satellite); a gap reflects loss of terrestrial reception, not necessarily a deliberate dark event. Filtered by gap-end time; date windows are capped at 30 days and default to the trailing 7 days. ## OpenAPI ````yaml /api-reference/openapi-v2.json get /api/v2/maritime/gaps openapi: 3.0.3 info: title: GDELT Cloud API v2 version: 2.0.0 description: >- Clean v2 REST API for generated GDELT Cloud structured Events, clustered Stories, linked Entities, summaries, admin1 discovery, significance ranking, and paginated article evidence. Event significance is a family-scoped weighted blend, renormalized so every event family spans a true 0-1: each event's raw total is divided by the maximum its own family can reach (Conflict 1.00, CAMEO+ POLITICAL 0.90, other CAMEO+ domains 0.65). All events: Goldstein severity 0.25, article evidence 0.05, confidence 0.05. Conflict only: fatalities 0.55 (log-scaled by body count) and civilian targeting 0.10. CAMEO+ only: magnitude 0.20, systemic importance 0.15, propagation potential 0.10, market sensitivity 0.10. When magnitude is unmeasured its term AND its 0.20 weight are both dropped. The four CAMEO+ metrics are rubric scores produced by published formulas - ordinal ranking signals, not measurements, probabilities, or predicted price moves. goldstein_scale is one canonical public metric, populated for Conflict Events and CAMEO+ POLITICAL Events where meaningful. Story linked_event_count is a Story-to-Event link aggregate, not a distinct Event total. servers: - url: https://gdeltcloud.com description: Production - url: http://localhost:3000 description: Local development security: - ApiKeyAuth: [] tags: - name: Events description: Coded CAMEO+ / conflict events — search, fetch, and summarize. - name: Stories description: Clustered narratives (stories) and their articles. - name: Entities description: >- People & organizations — resolve a name to an entity, then fetch its profile and tone. - name: Geography description: Admin-1 geography lookups. - name: Energy description: Global Energy Monitor assets + ownership registry. - name: Facilities description: >- Unified physical-asset directory — GEM energy assets + World Port Index ports + Epoch AI data centers on one keyed surface, resolved to spine owners. Plan-gated (Analyst plan and up). - name: Screening and Reference description: >- Restricted-party lists, screening, and ownership-chain exposure. Plan-gated (`can_use_screening` / `can_use_exposure`). - name: China description: >- China overseas development finance (AidData GCDF). Plan-gated (`can_use_china`). - name: Media Intelligence description: >- Entity tone (`can_use_tone`) and Share of Voice (`can_use_share_of_voice`) are plan-gated. Social signal remains an admin-only preview. - name: Filings description: >- SEC EDGAR filings, XBRL financials, and AI-extracted relations. Requires a plan with SEC filings access (`can_use_filings`) — the Corporate & Supply Chain plan and above. - name: Macro Finance description: >- FRED economic time series (catalog, point-in-time observations, releases). Plan-gated (`can_use_macro`). - name: Maritime description: >- AIS-derived vessel-flow signals across maritime chokepoints — chokepoint transits, last-known vessel positions, carriers, dwell, and AIS-dark gaps. Plan-gated (`can_use_maritime`). - name: Briefs description: Source-backed monitoring briefs. paths: /api/v2/maritime/gaps: get: tags: - Maritime summary: AIS-dark gaps description: >- AIS-dark gaps — intervals where a vessel stopped broadcasting AIS then reappeared, derived from terrestrial AIS coverage. Each row is one gap with the last-known position before it went dark. Requires a plan with Maritime intelligence access (`can_use_maritime`) — the Corporate & Supply Chain plan and above. Forward-accruing: gaps begin accruing at launch (June 2026) — no historical backfill. Terrestrial AIS only (no satellite); a gap reflects loss of terrestrial reception, not necessarily a deliberate dark event. Filtered by gap-end time; date windows are capped at 30 days and default to the trailing 7 days. operationId: list-maritime-gaps-v2 parameters: - name: chokepoint in: query required: false schema: type: string enum: - hormuz - bab_el_mandeb - malacca - suez - panama - bosphorus - gibraltar - dover - kerch - taiwan - danish_straits description: >- Restrict to gaps whose last-known chokepoint is this one. Omit for all. - name: min_gap_hours in: query required: false schema: type: number minimum: 0 default: 6 description: Minimum gap duration in hours. Defaults to 6. - name: date_start in: query required: false schema: type: string description: Gap-end-window start YYYY-MM-DD (≤30-day window). - name: date_end in: query required: false schema: type: string description: Gap-end-window end YYYY-MM-DD. - name: days in: query required: false schema: type: integer minimum: 1 maximum: 30 description: Trailing N-day window (1–30). Defaults to 7. - name: limit in: query required: false schema: type: integer minimum: 1 maximum: 500 default: 100 description: Rows per page (1–500). - name: cursor in: query required: false schema: type: string description: Pagination cursor (offset) from a prior response's next_cursor. responses: '200': description: >- A page of AIS-dark gaps, longest first. Each row: imo, mmsi, gap_start, gap_end, gap_hours, last_lat, last_lon, chokepoint (last-known before going dark). Standard envelope: { success, data, pagination, applied_filters }. content: application/json: schema: type: object properties: success: type: boolean data: type: array items: type: object properties: imo: type: string mmsi: type: integer gap_start: type: string gap_end: type: string gap_hours: type: number last_lat: type: number last_lon: type: number chokepoint: type: string pagination: type: object properties: limit: type: integer cursor: {} next_cursor: {} applied_filters: type: object properties: date_start: type: string date_end: type: string chokepoint: type: string min_gap_hours: type: integer ignored: type: object properties: {} examples: example: summary: GET /api/v2/maritime/gaps — example response value: success: true data: - imo: '9388893' mmsi: 538008914 gap_start: '2026-06-10 02:11:09' gap_end: '2026-06-11 19:43:27' gap_hours: 41.5 last_lat: 26.4412 last_lon: 56.5108 chokepoint: hormuz - imo: null mmsi: 477553000 gap_start: '2026-06-12 08:30:55' gap_end: '2026-06-12 21:14:02' gap_hours: 12.7 last_lat: 13.2204 last_lon: 43.4891 chokepoint: bab_el_mandeb pagination: limit: 100 cursor: null next_cursor: null applied_filters: date_start: '2026-06-08' date_end: '2026-06-14' chokepoint: hormuz min_gap_hours: 6 ignored: {} '401': description: Missing/invalid API key content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '403': description: >- Plan required (PLAN_REQUIRED) — the caller's plan does not carry the required source entitlement. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '500': description: Server error content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' security: - ApiKeyAuth: [] components: schemas: ErrorResponse: type: object properties: success: type: boolean enum: - false error: type: string code: type: string details: type: object description: >- Recoverable validation context when available, such as param, invalid_value, accepted_values, nearest_values, and a corrected example. additionalProperties: true securitySchemes: ApiKeyAuth: type: http scheme: bearer bearerFormat: gdelt_sk_... description: 'GDELT Cloud API key. Send as `Authorization: Bearer gdelt_sk_...`.' ````