FirmTape

FirmTape Days API

The Days API from FirmTape — 1 operation(s) for days.

GitHub OpenAPI

Operations 1

GET /api/days List Archived Trading Sessions #

Specifications

⚙
OpenAPI
https://artifacts.apis.io/firmtape-com/openapi/firmtape-com-days-api-openapi.yml

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OpenAPI Specification

firmtape-com-days-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: FirmTape SPX Dealer Positioning & Quantitative LAB Days API
  description: 'Public SPX session discovery plus the authenticated FirmTape LAB API. LAB develops a saved idea through chat, then backtests and optimizes that idea; the same token runs the OPTIONS strategy tester, which prices an SPX 0DTE structure (up to four legs) across the archived sessions on real quotes and settlement. Neither provides trading signals or investment advice. The order ledger and Geo are separate products with their own specifications: https://firmtape.com/orders/openapi.json and https://firmtape.com/geo/openapi.json.'
  version: 1.1.0
  contact:
    name: FirmTape Support
    url: https://firmtape.com/about
    email: support@firmtape.com
servers:
- url: https://firmtape.com
  description: Production Server
tags:
- name: Days
paths:
  /api/days:
    get:
      summary: List Archived Trading Sessions
      description: Returns a JSON array of all available historical SPX trading sessions back to 2022.
      operationId: listDays
      responses:
        '200':
          description: List of trading days
          content:
            application/json:
              schema:
                type: object
                properties:
                  days:
                    type: array
                    items:
                      type: string
                      format: date
                      example: '2026-08-28'
                  step:
                    type: integer
                    example: 1
                    description: Per-second grid step, in seconds, of the archived session build
      tags:
      - Days