> ## Documentation Index
> Fetch the complete documentation index at: https://docs.agg.market/llms.txt
> Use this file to discover all available pages before exploring further.

# Get chart bars

> Returns OHLCV bars for a single venue market.



## OpenAPI

````yaml /openapi/openapi.json get /charts/bars
openapi: 3.0.2
info:
  title: AGG API
  version: 1.0.0
  description: >-
    Prediction market aggregator REST API — authentication, users, venue events,
    venue markets, orderbooks, charts, and execution workflows.
servers:
  - url: https://api.agg.market
    description: Production
  - url: https://api.staging.agg.market
    description: Staging
security: []
paths:
  /charts/bars:
    get:
      tags:
        - Charts
      summary: Get chart bars
      description: Returns OHLCV bars for a single venue market.
      operationId: getChartBars
      parameters:
        - name: venueMarketOutcomeId
          in: query
          required: true
          schema:
            type: string
        - name: resolution
          in: query
          required: false
          schema:
            type: string
            enum:
              - '1'
              - '5'
              - '60'
              - 1D
        - name: from
          in: query
          required: false
          schema:
            type: number
        - name: to
          in: query
          required: true
          schema:
            type: number
        - name: countBack
          in: query
          required: false
          schema:
            minimum: 1
            maximum: 5000
            type: integer
      responses:
        '200':
          description: '200'
          content:
            application/json:
              schema:
                type: object
                required:
                  - venueMarketOutcomeId
                  - venue
                  - resolution
                  - data
                  - meta
                properties:
                  venueMarketOutcomeId:
                    type: string
                  venue:
                    type: string
                  resolution:
                    type: string
                    enum:
                      - 1m
                      - 5m
                      - 1h
                      - 1d
                  data:
                    type: array
                    items:
                      type: object
                      required:
                        - t
                        - o
                        - h
                        - l
                        - c
                        - v
                      properties:
                        t:
                          type: number
                        o:
                          type: number
                        h:
                          type: number
                        l:
                          type: number
                        c:
                          type: number
                        v:
                          type: number
                          nullable: true
                  meta:
                    type: object
                    required:
                      - serverTime
                      - lastBarOpenTime
                      - staleSeconds
                    properties:
                      serverTime:
                        type: number
                      lastBarOpenTime:
                        type: number
                        nullable: true
                      staleSeconds:
                        type: number
                        nullable: true
        '400':
          description: '400'
          content:
            application/json:
              schema:
                type: object
                required:
                  - message
                properties:
                  message:
                    type: string
        '401':
          description: '401'
          content:
            application/json:
              schema:
                type: object
                required:
                  - message
                properties:
                  message:
                    type: string
        '403':
          description: '403'
          content:
            application/json:
              schema:
                type: object
                required:
                  - message
                properties:
                  message:
                    type: string
      security:
        - appId: []
components:
  securitySchemes:
    appId:
      type: apiKey
      in: header
      name: x-app-id
      description: Your application ID. Required for all app-tier and user-tier routes.

````