Massive (formerly Polygon.io) · OpenAPI Overlay 1.0.0

API Evangelist conversational phrasing for Massive Com Stocks:open Close API

3 actions 3 updates phrasing extends openapi/massive-com-stocks-open-close-api-openapi.yml
Generated by API Evangelist Written by API Evangelist tooling for Massive (formerly Polygon.io)'s API. It is a proposal applied on top of the contract, not a document Massive (formerly Polygon.io) publishes.
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What the actions change

x-apievangelist-phrasing

Targets 3

$.info
$.paths['/v1/open-close/{indicesTicker}/{date}'].get
$.paths['/v1/open-close/{stocksTicker}/{date}'].get

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Raw ↑ 
# Generated by API Evangelist (build-phrasing.py). Our phrasing, not observed demand.
overlay: 1.0.0
info:
  title: API Evangelist conversational phrasing for Massive Com Stocks:open Close API
  version: 1.0.0
extends: openapi/massive-com-stocks-open-close-api-openapi.yml
actions:
- target: $.info
  update:
    x-apievangelist-phrasing:
      method: generated
      generated: '2026-09-26'
      generator: build-phrasing.py
      label: Generated by API Evangelist
      operations: 2
- target: $.paths['/v1/open-close/{indicesTicker}/{date}'].get
  update:
    x-apievangelist-phrasing:
      intent: Get an index's open, close and after-hours values
      effect: read
      questions:
      - What were a market index's opening and closing values on a specific date?
      - Can I see an index's after-hours value for a past day?
      instructions:
      - text: Get the daily open/close for index {indicesTicker} on {date}.
        slots:
          indicesTicker: path.indicesTicker
          date: path.date
      - text: Show index {indicesTicker}'s open, close and after-hours values for {date}.
        slots:
          indicesTicker: path.indicesTicker
          date: path.date
      method: generated
      generated: '2026-09-26'
- target: $.paths['/v1/open-close/{stocksTicker}/{date}'].get
  update:
    x-apievangelist-phrasing:
      intent: Get a stock's open, close and after-hours prices
      effect: read
      questions:
      - What were a stock's opening and closing prices on a given day?
      - What did a share trade at in pre-market and after-hours on a past date?
      instructions:
      - text: Get the daily open/close for stock {stocksTicker} on {date}.
        slots:
          stocksTicker: path.stocksTicker
          date: path.date
      - text: Show {stocksTicker}'s open, close and after-hours prices for {date}.
        slots:
          stocksTicker: path.stocksTicker
          date: path.date
      method: generated
      generated: '2026-09-26'