> ## Documentation Index > Fetch the complete documentation index at: https://docs.hyperdash.com/llms.txt > Use this file to discover all available pages before exploring further. # HIP-4 outcome markets > One row per HIP-4 outcome market from Hyperdash's outcome registry: its Yes / No coins, the question (event) it answers, a question's outcomes are its possible answers, `is_fallback` marks the catch-all one, names and description as published on chain, deployer venue, quote token, status, expiry and open interest (minted Yes/No pairs, in shares at $1 face) with the time of the market snapshot it comes from. Snapshots run every 5 minutes for active markets, so a settled market keeps its last pre-settlement open interest; listings without `outcome_id` / `question_id` look back 1 day for it (null beyond). Newest outcome first, one page of up to `limit` outcomes. No wallets. Pricing: base + per row. Scope: `analytics:read`. ## OpenAPI ````yaml /data-api/openapi.json get /v1/outcomes/markets openapi: 3.1.0 info: title: Hyperdash Data API version: v1 description: >- Hyperliquid data from Hyperdash's own nodes. Every response reports the credits it cost. servers: - url: https://data.hyperdash.com security: [] tags: - name: Accounts - name: Async jobs - name: Builders - name: Cohorts - name: HIP-3 DEXs - name: Leaderboards - name: Lending - name: Liquidations - name: Markets - name: Network - name: Outcomes - name: Positions - name: Snapshots - name: Spot - name: Staking - name: Traders paths: /v1/outcomes/markets: get: tags: - Outcomes summary: HIP-4 outcome markets description: >- One row per HIP-4 outcome market from Hyperdash's outcome registry: its Yes / No coins, the question (event) it answers, a question's outcomes are its possible answers, `is_fallback` marks the catch-all one, names and description as published on chain, deployer venue, quote token, status, expiry and open interest (minted Yes/No pairs, in shares at $1 face) with the time of the market snapshot it comes from. Snapshots run every 5 minutes for active markets, so a settled market keeps its last pre-settlement open interest; listings without `outcome_id` / `question_id` look back 1 day for it (null beyond). Newest outcome first, one page of up to `limit` outcomes. No wallets. Pricing: base + per row. Scope: `analytics:read`. operationId: listOutcomeMarkets parameters: - name: status in: query required: false description: Market status. schema: type: string default: active enum: - active - settled - all - name: outcome_id in: query required: false description: One outcome. schema: type: integer minimum: 0 maximum: 1000000000000000 - name: question_id in: query required: false description: 'One question (event): its outcomes, the fallback included.' schema: type: integer minimum: 1 maximum: 1000000000000000 - name: limit in: query required: false description: Outcomes (newest first). schema: type: integer minimum: 1 maximum: 1000 default: 100 - name: X-Max-Credits in: header required: false description: Refuse (free) if the request could cost more. schema: type: integer - name: X-Credit-Price-Version in: header required: false description: Expected price version; 409 price_changed if it differs. schema: type: integer responses: '200': description: OK headers: X-Credits-Charged: schema: type: integer X-Credit-Price-Version: schema: type: integer X-Request-Id: schema: type: string content: application/json: schema: type: object required: - data - has_more - next_cursor - meta properties: data: type: array items: type: object properties: outcome: type: integer description: Outcome id coin_yes: type: string description: >- Yes-side coin (#), as in mids and trades coin_no: type: string description: No-side coin (#) question_id: type: - integer - 'null' description: 'Question (event) id; null: a standalone outcome' question_name: type: - string - 'null' description: Question name is_fallback: type: boolean description: The question's fallback (catch-all) outcome name: type: string description: Outcome name description: type: - string - 'null' description: >- Description as published (key:value pairs separated by |) side0_name: type: string description: Yes-side name side1_name: type: string description: No-side name venue: type: - string - 'null' description: Deployer venue quote_token: type: - string - 'null' description: Quote token status: type: string description: active or settled first_seen_time: type: integer description: First seen by Hyperdash, epoch ms expiry_time: type: - integer - 'null' description: >- Expiry, epoch ms (UTC): the registry's expiry, else the description's time / dateTime / *Deadline key; null when none (a question's outcomes: the deadline sits on the question) expiry_raw: type: - string - 'null' description: The expiry as published (YYYYMMDD-HHMM) open_interest: type: - string - 'null' description: >- Open interest: minted Yes/No pairs, in shares ($1 face); null without a market snapshot in reach (decimal string; may carry extra trailing zeros) oi_as_of: type: - integer - 'null' description: >- Time of the market snapshot open_interest comes from, epoch ms has_more: type: boolean next_cursor: type: - string - 'null' meta: type: object '400': description: Invalid parameter content: application/problem+json: schema: $ref: '#/components/schemas/Problem' '401': description: Invalid, expired or revoked key content: application/problem+json: schema: $ref: '#/components/schemas/Problem' '403': description: Scope, plan, history or credit limit content: application/problem+json: schema: $ref: '#/components/schemas/Problem' '409': description: Price version changed content: application/problem+json: schema: $ref: '#/components/schemas/Problem' '429': description: Rate limited (Retry-After) content: application/problem+json: schema: $ref: '#/components/schemas/Problem' '503': description: Backend at capacity (Retry-After) content: application/problem+json: schema: $ref: '#/components/schemas/Problem' security: - bearer: [] x-codeSamples: - lang: curl source: >- curl -H 'Authorization: Bearer $HD_KEY' 'https://data.hyperdash.com/v1/outcomes/markets?status=active&limit=500' components: schemas: Problem: type: object required: - type - title - status - code - request_id properties: type: type: string title: type: string status: type: integer code: type: string detail: type: string hint: type: string request_id: type: string securitySchemes: bearer: type: http scheme: bearer description: hdk_sk_live_v1_… or hdk_sk_test_v1_… ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.