> ## 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. # AI models > Epoch model observations with terminal entity IDs, separately resolved participants, source roles and publication coverage. ## OpenAPI ````yaml /api-reference/openapi-v2.json get /api/v2/epoch/models 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: Situations description: >- One real-world occurrence as the Stories and coded Events that belong to it — stored, adjudicated membership (`meta.situation_source: curated`) or a walked neighbourhood around a Story. Discovery, detail, four independently paged member lists, and the only write on the core surface (5 QU with an Idempotency-Key). - name: Entities description: >- People & organizations — resolve a name to an entity, then fetch its profile and tone. Also the publication activity journal (/api/v2/activity): observed evidence of what was published about identities and records — committed batches only, cursor-paged, never source intake. - name: Unified Search description: >- One fuzzy lookup across every id-space — start here with a name, take the entity id, then reuse it on every other surface. This is the resolver the rest of the API assumes you called first. - name: Media Intelligence description: >- Press-coverage tone over time and share of voice against a peer set. Requires the `can_use_tone` / `can_use_share_of_voice` entitlement; social signal is an admin-only preview. - name: Facilities description: >- Unified physical-asset directory — GEM energy assets, World Port Index ports and Epoch AI data centers on one keyed surface, resolved to spine owners. Requires the `can_use_facilities` entitlement. - name: Monitors description: >- Organization-shared scheduled checks over the Core API, with email and signed-webhook delivery. Monitor execution does not consume query units. - name: Geography description: >- Country context and admin-1 geography: /api/v2/countries (publication activity, reporting counts, dated economic and resource fundamentals, facility and office inventories, directory mode over every registered country) and admin-1 lookups. - name: Government description: >- US federal awards (USAspending) and foreign-influence registrations (DOJ NSD FARA), resolved onto the entity spine. Requires the `can_use_gov` entitlement. - name: Political Offices description: >- Public political offices and who holds them — legislatures, cabinets, heads of state, courts and IGO posts, with the office start/end dates the publisher states (valid time), resolved onto the entity spine. Actor context for geopolitical analysis; NOT a PEP or sanctions-screening tool. Requires the `can_use_offices` entitlement. - name: Filings description: >- SEC EDGAR filings, XBRL financials, and relations extracted from filing text. Requires the `can_use_filings` entitlement. - name: Reference Data description: >- The GLEIF Global LEI Index — legal-entity reference data, consolidation relationships, and LEI↔ISIN mappings. Requires the `can_use_gleif` entitlement. - name: Energy description: Global Energy Monitor assets + ownership registry. - name: AI Compute description: >- Epoch AI datasets — models, hardware, data centers, companies and chip sales. Requires the `can_use_epoch_ai` entitlement. - name: Macro Finance description: >- FRED economic time series — catalog, point-in-time observations and releases. Requires the `can_use_macro` entitlement. - name: Screening and Reference description: >- Restricted-party lists, name screening and ownership-chain exposure. Requires the `can_use_screening` / `can_use_exposure` entitlement. Analytical coverage, not an audit-grade compliance control. - name: China description: >- China overseas development finance (AidData GCDF). Requires the `can_use_china` entitlement. - name: Maritime description: >- AIS-derived vessel flow — chokepoint transits, last-known vessel positions, carriers, dwell and AIS-dark gaps. Terrestrial AIS only, so coverage thins in open ocean. Requires the `can_use_maritime` entitlement. - name: Atlas Intelligence description: >- Geopolitical-risk and posture indices computed from GDELT Cloud’s own coded events, normalized to each place’s own frozen baseline. - name: Natural Resources description: >- USGS mineral production, reserves and qualified country statistics, composed with the physical Facilities inventory. - name: Briefs description: Source-backed monitoring briefs. - name: Meta description: >- Machine-readable discovery: the value vocabularies, the endpoint contracts, and the query-unit cost model. Unmetered, so a client can check before it spends. paths: /api/v2/epoch/models: get: tags: - AI Compute summary: AI models description: >- Epoch model observations with terminal entity IDs, separately resolved participants, source roles and publication coverage. operationId: get-epoch-models-v2 parameters: - name: limit in: query required: false schema: type: integer minimum: 1 maximum: 200 default: 25 description: >- Rows per page. Default 25, max 200. Note: validation is owned by the endpoint service because it depends on composed or cross-parameter state; the published error semantics above still apply. example: '25' - name: cursor in: query required: false schema: type: string description: >- Opaque pagination cursor taken from the previous response's `pagination.next_cursor`. Also accepts: `offset`. Note: validation is owned by the endpoint service because it depends on composed or cross-parameter state; the published error semantics above still apply. example: '25' x-aliases: - offset - name: entity in: query required: false schema: type: string description: >- Participant entity: spine ID, news ID, Wikipedia URL or resolved name; all terminal aliases are included. Note: validation is owned by the endpoint service because it depends on composed or cross-parameter state; the published error semantics above still apply. Full value list: https://docs.gdeltcloud.com/reference/enums#entity_handle example: Microsoft - name: participant_role in: query required: false schema: type: string description: >- Exact source role. Hardware ownership does not establish building ownership. Note: validation is owned by the endpoint service because it depends on composed or cross-parameter state; the published error semantics above still apply. example: owner - name: organization in: query required: false schema: type: string description: >- Developer substring. Also accepts: `org`. Note: validation is owned by the endpoint service because it depends on composed or cross-parameter state; the published error semantics above still apply. example: OpenAI x-aliases: - org - name: domain in: query required: false style: form explode: false schema: type: array items: type: string enum: - Language - Vision - Biology - Multimodal - Image generation - Video - Speech - Robotics - Games - Audio - Medicine - Mathematics - Materials science - Earth science - Recommendation - Driving - Search - 3D modeling - Other - Psychology - Astronomy - Cybersecurity description: >- One domain or a comma-separated intersection of task domains. Note: validation is owned by the endpoint service because it depends on composed or cross-parameter state; the published error semantics above still apply. Full value list: https://docs.gdeltcloud.com/reference/enums#epoch_model_domain example: Language - name: model_accessibility in: query required: false schema: type: string enum: - Open weights (unrestricted) - Open weights (restricted use) - Open weights (non-commercial) - API access - Hosted access (no API) - Limited access - Unreleased description: >- Exact accessibility tier, case-insensitive. Note: validation is owned by the endpoint service because it depends on composed or cross-parameter state; the published error semantics above still apply. Full value list: https://docs.gdeltcloud.com/reference/enums#epoch_model_accessibility example: Limited access - name: organization_categorization in: query required: false schema: type: string description: >- Source organization-category substring. Note: validation is owned by the endpoint service because it depends on composed or cross-parameter state; the published error semantics above still apply. example: Academia - name: frontier in: query required: false schema: type: boolean description: >- true/false selects frontier/non-frontier models. Note: validation is owned by the endpoint service because it depends on composed or cross-parameter state; the published error semantics above still apply. example: 'true' - name: min_compute in: query required: false schema: type: number minimum: 0 description: >- Positive floor on source training FLOP. Note: validation is owned by the endpoint service because it depends on composed or cross-parameter state; the published error semantics above still apply. example: '1e25' - name: sort in: query required: false schema: type: string description: >- publication_date or compute. Note: validation is owned by the endpoint service because it depends on composed or cross-parameter state; the published error semantics above still apply. example: compute - name: date_start in: query required: false schema: type: string format: date description: >- Inclusive source-date lower bound, YYYY-MM-DD. Note: validation is owned by the endpoint service because it depends on composed or cross-parameter state; the published error semantics above still apply. example: '2025-01-01' - name: date_end in: query required: false schema: type: string format: date description: >- Inclusive source-date upper bound, YYYY-MM-DD. Note: validation is owned by the endpoint service because it depends on composed or cross-parameter state; the published error semantics above still apply. example: '2026-09-30' responses: '200': description: >- A page of AI models. Envelope: `{ success, data, pagination, applied_filters }`. content: application/json: schema: type: object properties: success: type: boolean data: type: array items: type: object properties: model: type: string domain: type: string organization: type: string publication_date: type: string parameters: type: number nullable: true training_compute_flop: type: number nullable: true training_hardware: type: string nullable: true frontier_model: type: boolean nullable: true open_weights: type: boolean nullable: true model_accessibility: type: string nullable: true entity_id: type: string description: Spine entity id for the developing organization. entity_page_name: type: string description: >- Wiki-backed name that resolves to the entity's `/entities` page, or empty string when it has no wiki twin. pagination: type: object properties: limit: type: integer offset: type: integer next_cursor: type: string nullable: true description: >- Canonical page token — pass it back as `cursor` to fetch the next page (uniform across all list endpoints). `null` when there are no more rows. next_offset: type: integer nullable: true deprecated: true description: >- Legacy — prefer `next_cursor` (still returned). Numeric row offset of the next page. applied_filters: type: object properties: organization: type: string frontier: type: boolean sort: type: string ignored: type: object examples: example: summary: >- GET /api/v2/epoch/models?frontier=true&sort=compute — example response value: success: true data: - model: GPT-4 domain: Language organization: OpenAI publication_date: '2023-03-14' parameters: null training_compute_flop: 2.1e+25 training_hardware: NVIDIA A100 SXM4 80 GB frontier_model: true open_weights: false model_accessibility: API access entity_id: e_58a5cada3c775725 entity_page_name: OpenAI pagination: limit: 25 offset: 0 next_cursor: null next_offset: null applied_filters: frontier: true sort: compute 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_...`.' ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.