> ## Documentation Index > Fetch the complete documentation index at: https://developer.hayinsights.com/llms.txt > Use this file to discover all available pages before exploring further. # Latest market news > Recent news headlines with sentiment, newest first. Each item carries a short summary, the publisher, and a sentiment label. Use `tab` to restrict to one market (e.g. commodities), `geography` to one region, and keep `limit` small — this is meant for a briefing, not an archive sweep. The response reports `total`, so page with `offset` when there is more than one page. ## OpenAPI ````yaml /openapi.yaml get /openapi/v1/news/feed openapi: 3.1.0 info: title: HayInsights Open API version: 0.1.0 description: > Programmatic access to the **HayInsights** financial-data hub — commodities, crypto, ETF, FX, macroeconomic, real-estate, news, economic-calendar and market-index datasets, served from a single API surface under `/openapi/v1/*`. This specification is the **single source of truth** for the public API surface — shared by SDK codegen, the reference docs, and (later) the mock server / contract tests. ## Authentication Every request must carry your API key in the `X-API-Key` header. There is a single authentication tier — no request signing. Create and manage keys in the HayInsights dashboard (Account → API keys). See **Authentication**. ## Plans & quota Access to each data domain and your request quota are governed by the subscription plan attached to your key. Each endpoint consumes a **weighted** amount of your per-minute quota; every response carries `X-RateLimit-*` headers. See **Rate limits** and **Plans & features**. contact: {} servers: - url: https://api-v2.hayinsights.com description: Production security: - HayInsightsApiKey: [] tags: - name: Commodities description: >- Spot prices, top movers, gold–DXY correlation and historical series for energy, metals and agricultural commodities. - name: Crypto description: >- Crypto market overview, dominance, bubble map, on-chain and derivatives metrics. - name: ETF description: >- Exchange-traded fund listings, performance & net-flow rankings, heatmap, holdings, NAV growth and fund composition. - name: FX description: >- Foreign-exchange summary, live table, 90-day correlation matrix and the emerging-market stress monitor. - name: Macro description: >- Macroeconomic indicators — GDP, CPI/PCE, exchange rates, population, central-government debt and policy rates / bond yields. - name: Real Estate description: >- Land prices, transaction-level records, administrative geography (provinces / wards) and choropleth GeoJSON, by country. - name: News description: >- Market news headlines with per-article sentiment, plus an aggregate sentiment reading over a rolling window. - name: Calendar description: >- Economic calendar — rate decisions, CPI and GDP releases, market holidays and asset-level events. - name: Market description: >- Index snapshots and global index closes — levels and daily moves for S&P 500, Nasdaq, Nikkei, VN-Index and others. paths: /openapi/v1/news/feed: get: tags: - News summary: Latest market news description: > Recent news headlines with sentiment, newest first. Each item carries a short summary, the publisher, and a sentiment label. Use `tab` to restrict to one market (e.g. commodities), `geography` to one region, and keep `limit` small — this is meant for a briefing, not an archive sweep. The response reports `total`, so page with `offset` when there is more than one page. operationId: newsFeed parameters: - name: tab in: query required: false description: > Restrict to one market. Equivalent to sending the matching `category`. | Value | Description | | --- | --- | | `all` | Every market | | `macroeconomic` | Macroeconomics | | `bond` | Bonds | | `stock` | Equities | | `commodities` | Commodities | | `forex` | Foreign exchange | | `crypto` | Crypto | schema: type: string enum: - all - macroeconomic - bond - stock - commodities - forex - crypto - name: category in: query required: false description: Filter by display category. Prefer `tab`. schema: type: string enum: - macroeconomic - bond - stock - commodities - forex - crypto - name: assetClass in: query required: false description: Filter by asset class. schema: type: string enum: - crypto - stock - bond - commodities - forex - name: macroTopic in: query required: false description: Filter by macro topic. schema: type: string enum: - politics - central_banks - macroeconomics - name: geography in: query required: false description: | Filter by region. `global` also covers apac and europe. | Value | Description | | --- | --- | | `us` | United States | | `japan` | Japan | | `vietnam` | Vietnam | | `global` | Global, incl. APAC and Europe | schema: type: string enum: - us - japan - vietnam - global - name: sourceCode in: query required: false description: Filter by source. schema: type: string example: cnbc-markets - name: keyword in: query required: false description: Only articles mentioning this keyword. schema: type: string example: inflation - name: limit in: query required: false description: Articles to return. schema: type: integer minimum: 1 maximum: 20 default: 5 - name: offset in: query required: false description: Articles to skip, for paging. schema: type: integer minimum: 0 default: 0 responses: '200': description: One page of articles, newest first. content: application/json: schema: $ref: '#/components/schemas/NewsFeedResponse' example: success: true statusCode: 200 data: total: 143 returned: 2 offset: 0 items: - title: Fed holds rates steady as inflation cools source: CNBC Markets publishedAt: '2026-09-16T04:12:00.000Z' category: macroeconomic geography: us sentiment: positive sentimentScore: 0.62 summary: - >- The Federal Reserve left its benchmark rate unchanged at 4.25–4.50%. - Officials signalled one further cut before year-end. url: https://www.cnbc.com/2026/09/16/fed-holds-rates.html - title: Nikkei slips as yen strengthens past 145 source: VnEconomy Business publishedAt: '2026-09-16T02:40:00.000Z' category: stock geography: japan sentiment: negative sentimentScore: -0.31 summary: null url: https://vneconomy.vn/nikkei-slips.htm meta: timestamp: '2026-09-16T08:50:42.507Z' '400': $ref: '#/components/responses/BadRequest' '401': $ref: '#/components/responses/Unauthorized' '403': $ref: '#/components/responses/Forbidden' '429': $ref: '#/components/responses/RateLimited' '500': $ref: '#/components/responses/InternalError' components: schemas: NewsFeedResponse: allOf: - $ref: '#/components/schemas/EnvelopeBase' - type: object required: - data properties: data: type: object description: > One page of articles. `total` counts every article matching the filters, not just this page — page through the remainder with `offset`. required: - total - returned - offset - items properties: total: type: integer description: Articles matching the filters across all pages. example: 143 returned: type: integer description: Articles in this page. example: 5 offset: type: integer description: Articles skipped before this page. example: 0 items: type: array items: $ref: '#/components/schemas/NewsArticle' EnvelopeBase: type: object description: > Standard success envelope shared by every endpoint. Each operation's response wrapper extends this (via `allOf`) and adds a typed `data` property. required: - success - statusCode properties: success: type: boolean const: true description: Always `true` for a successful response. example: true statusCode: type: integer description: Mirrors the HTTP status code. example: 200 meta: $ref: '#/components/schemas/Meta' NewsArticle: type: object description: > One article, projected for briefing use — the dashboard's thumbnail, language, ticker and enrichment fields are deliberately omitted. required: - title - source - publishedAt - category - url properties: title: type: string example: Fed holds rates steady as inflation cools source: type: string description: Publisher name. example: CNBC Markets publishedAt: type: - string - 'null' format: date-time example: '2026-09-16T04:12:00.000Z' category: type: string description: Display category; empty string when the pipeline assigned none. example: macroeconomic geography: type: - string - 'null' example: us sentiment: type: - string - 'null' enum: - positive - neutral - negative - null example: positive sentimentScore: type: - number - 'null' description: >- Signed sentiment strength; `null` when the article was not classified. example: 0.62 summary: type: - array - 'null' description: > Short bullet summary. Roughly a fifth of articles have no generated summary — those fall back to a single bullet holding the publisher's opening line, truncated to 280 characters. Always an array or `null`, never a bare string. items: type: string example: - >- The Federal Reserve left its benchmark rate unchanged at 4.25–4.50%. url: type: string format: uri example: https://www.cnbc.com/2026/09/16/fed-holds-rates.html ErrorBody: type: object description: Standard error envelope returned for every 4xx / 5xx response. required: - success - statusCode - error properties: success: type: boolean const: false description: Always `false` for an error response. example: false statusCode: type: integer description: Mirrors the HTTP status code. example: 401 error: $ref: '#/components/schemas/ErrorDetail' meta: $ref: '#/components/schemas/Meta' Meta: type: object description: >- Response metadata. Always present; `timestamp` is the server time the response was generated. required: - timestamp properties: timestamp: type: string format: date-time description: Server time when the response was generated (ISO 8601). example: '2026-06-19T08:31:59.478Z' additionalProperties: true ErrorDetail: type: object description: Error detail object carried under `error` in the error envelope. required: - code - message properties: code: type: string description: > Machine-readable error code. Specific for authentication / quota errors (e.g. `API_KEY_REQUIRED`, `API_KEY_INVALID`, `FEATURE_NOT_IN_PLAN`, `RATE_LIMIT_EXCEEDED`). For validation (400) and not-found (404) the code is currently `INTERNAL_ERROR` and the HTTP status carries the semantics. example: API_KEY_INVALID message: description: Human-readable message, or a list of validation messages (400). oneOf: - type: string - type: array items: type: string example: Invalid API key responses: BadRequest: description: >- Invalid or missing parameter — bad enum, range, format, or a missing required query parameter. content: application/json: schema: $ref: '#/components/schemas/ErrorBody' example: success: false statusCode: 400 error: code: INTERNAL_ERROR message: - >- Invalid type parameter. Must be "gdp", "cpi", "pce", or "import-export" - Type parameter is required meta: error: Bad Request statusCode: 400 timestamp: '2026-06-19T08:34:08.081Z' Unauthorized: description: >- Missing, invalid, disabled or expired API key. Send a valid key in the `X-API-Key` header. content: application/json: schema: $ref: '#/components/schemas/ErrorBody' example: success: false statusCode: 401 error: code: API_KEY_INVALID message: Invalid API key meta: timestamp: '2026-06-19T08:34:08.023Z' Forbidden: description: >- Your subscription plan does not include this data feature, or your key's scope denies it. content: application/json: schema: $ref: '#/components/schemas/ErrorBody' example: success: false statusCode: 403 error: code: FEATURE_NOT_IN_PLAN message: Your plan does not include this feature meta: timestamp: '2026-06-19T08:34:08.100Z' RateLimited: description: > Rate limit exceeded — you have consumed your plan's per-minute weight budget. Wait until `X-RateLimit-Reset` (or `Retry-After` seconds) then retry. headers: X-RateLimit-Limit: $ref: '#/components/headers/XRateLimitLimit' X-RateLimit-Remaining: $ref: '#/components/headers/XRateLimitRemaining' X-RateLimit-Reset: $ref: '#/components/headers/XRateLimitReset' X-RateLimit-Weight-Used: $ref: '#/components/headers/XRateLimitWeightUsed' Retry-After: $ref: '#/components/headers/RetryAfter' content: application/json: schema: $ref: '#/components/schemas/ErrorBody' example: success: false statusCode: 429 error: code: RATE_LIMIT_EXCEEDED message: Rate limit exceeded meta: timestamp: '2026-06-19T08:34:09.000Z' InternalError: description: Unexpected server error. Retry after a short exponential backoff. content: application/json: schema: $ref: '#/components/schemas/ErrorBody' example: success: false statusCode: 500 error: code: INTERNAL_ERROR message: Internal server error meta: timestamp: '2026-06-19T08:34:10.000Z' headers: XRateLimitLimit: description: Your plan's request-weight budget per 1-minute window. schema: type: integer example: 1000 XRateLimitRemaining: description: Remaining request weight in the current 1-minute window. schema: type: integer example: 997 XRateLimitReset: description: Unix timestamp (seconds) when the current rate-limit window resets. schema: type: integer format: int64 example: 1781857979 XRateLimitWeightUsed: description: Request weight consumed by this call (see each endpoint's weight). schema: type: integer example: 3 RetryAfter: description: Seconds to wait before retrying. Present on 429 responses. schema: type: integer example: 30 securitySchemes: HayInsightsApiKey: type: apiKey in: header name: X-API-Key description: > Your HayInsights API key (prefixed `apk_`). Create and manage keys in the HayInsights dashboard (Account → API keys). Send it in the `X-API-Key` header on **every** request to `/openapi/v1/*`. Which data domains you may access and your request quota are both governed by the subscription plan attached to the key — see the **Plans & features** and **Rate limits** guides. ````