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

# Market Price At

> Yes price as of a point in time

<Note>**1** credit per request</Note><hr />

<AccordionGroup>
  <Accordion title="You will get">
    * The last Yes-price observation at or before `t` (unix seconds). Never interpolates.
    * `price` is null when the series begins after `t`; `observedAt` is the timestamp actually used (`<= t`).
    * The lookback window widens with the age of `t`; override with `interval`.
  </Accordion>
</AccordionGroup>


## OpenAPI

````yaml /api-reference/openapi.json get /v1/prediction/markets/{slug}/price-at
openapi: 3.0.0
info:
  title: CoinStats Public API
  description: >-
    CoinStats Public API — programmatic access to market data, news, NFTs,
    wallets, exchange connections, and user portfolios. Authenticate every
    request with the `X-API-KEY` header (or an OAuth Bearer token in the
    `Authorization` header). Generate keys at https://openapi.coinstats.app.
  version: '1.0'
  contact: {}
servers:
  - url: https://api.coinstats.app
security: []
tags:
  - name: CoinStats
    description: ''
  - name: Market Data
    description: >-
      The Market Data section of the API provides endpoints to access a wide
      range of market-related information, including cryptocurrency coins,
      ticker data, and fiat currency rates. This category offers comprehensive
      data to help users monitor and analyze the cryptocurrency market, track
      prices, and gain insights into market trends
  - name: News
    description: >-
      The News section of the API allows you to access news articles and updates
      related to cryptocurrencies and the blockchain industry. It provides
      valuable information from various sources to keep you informed about the
      latest developments
  - name: NFTs
    description: >-
      The NFT section of the API provides endpoints to interact with
      Non-Fungible Tokens (NFTs), which are unique digital assets stored on a
      blockchain. These endpoints allow you to retrieve information about NFTs,
      including collections, assets, trending NFTs, and specific assets
      associated with wallet addresses.
  - name: Wallet Data
    description: >-
      The Wallet section of the API provides a comprehensive set of endpoints to
      manage and interact with wallets. It enables users to retrieve wallet
      balances, monitor syncing status, fetch transaction data, and synchronize
      wallet information with the blockchain. By integrating these endpoints
      into your application, you can offer robust wallet functionality to your
      users.
  - name: Exchange Connection
    description: >-
      The Exchange Connection section of the API provides a comprehensive set of
      endpoints to manage and interact with exchanges. It enables users to
      retrieve exchange balances, monitor syncing status, fetch transaction
      data. By integrating these endpoints into your application, you can offer
      robust exchange portfolio tracking functionality to your users.
  - name: User Portfolio
    description: >-
      The Portfolio section of the API provides a comprehensive set of endpoints
      to manage and interact with Share Portfolios. It enables users to retrieve
      current Portfolio Coins and Transactions.
  - name: Usage
    description: The Usage section provides account-level API usage data.
  - name: Status
    description: The Status section provides API availability checks.
  - name: Prediction · Markets
    description: >-
      Polymarket markets: list/trend/detail, live CLOB prices and order book,
      OHLC candles, and price history. Prices are probabilities in 0..1, money
      is USD, dates are ISO 8601.
  - name: Prediction · Events
    description: >-
      Polymarket events — groups of related markets (e.g. one market per
      candidate). List, trend, and fetch an event with its child markets.
  - name: Prediction · Traders
    description: >-
      Trader leaderboard plus deep per-trader analytics: profile, open
      positions, trade history, daily PnL, category stats, aggregate trade
      stats, and composite score.
  - name: Prediction · Analytics
    description: >-
      Platform-wide analytics: overview stats, smart-money and whale traders,
      trending-by-smart-money markets, and composite market signals.
  - name: Prediction · Search
    description: Full-text search across Polymarket events, markets, and traders.
paths:
  /v1/prediction/markets/{slug}/price-at:
    get:
      tags:
        - Prediction · Markets
      summary: Yes price as of a point in time
      operationId: market-price-at
      parameters:
        - name: slug
          required: true
          in: path
          schema:
            type: string
        - name: t
          required: true
          in: query
          description: Unix seconds.
          schema:
            type: number
        - name: interval
          required: false
          in: query
          schema:
            type: string
            enum:
              - 1h
              - 6h
              - 1d
              - 1w
              - 1m
              - max
      responses:
        '200':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MarketPriceAtResponseDto'
        '400':
          description: Bad Request
          content:
            application/json:
              example:
                statusCode: 400
                message: Bad Request
                requestId: 11111111-2222-3333-4444-555555555555
                path: <requested-endpoint>
        '401':
          description: Unauthorized
          content:
            application/json:
              example:
                statusCode: 401
                message: Unauthorized
                requestId: 11111111-2222-3333-4444-555555555555
                path: <requested-endpoint>
        '403':
          description: Forbidden
          content:
            application/json:
              example:
                statusCode: 403
                message: Forbidden
                requestId: 11111111-2222-3333-4444-555555555555
                path: <requested-endpoint>
        '404':
          description: Not Found
          content:
            application/json:
              example:
                statusCode: 404
                message: Not Found
                requestId: 11111111-2222-3333-4444-555555555555
                path: <requested-endpoint>
        '409':
          description: Conflict (for some endpoints)
          content:
            application/json:
              example:
                statusCode: 409
                message: Transactions not synced
                requestId: 11111111-2222-3333-4444-555555555555
                path: <requested-endpoint>
        '429':
          description: Too Many Requests
          content:
            application/json:
              example:
                statusCode: 429
                message: Rate limit exceeded
                requestId: 11111111-2222-3333-4444-555555555555
                path: <requested-endpoint>
        '503':
          description: Service Unavailable
          content:
            application/json:
              example:
                statusCode: 503
                message: Service Unavailable. Please Contact Support
      security:
        - X-API-KEY: []
      x-codeSamples:
        - lang: curl
          label: cURL
          source: |-
            curl --request GET \
              --url 'https://api.coinstats.app/v1/prediction/markets/<slug>/price-at?t=<t>' \
              --header 'X-API-KEY: <api-key>'
        - lang: python
          label: Python
          source: >-
            import requests


            url =
            "https://api.coinstats.app/v1/prediction/markets/<slug>/price-at?t=<t>"


            headers = {"X-API-KEY": "<api-key>"}


            response = requests.request("GET", url, headers=headers)


            print(response.json())
        - lang: javascript
          label: JavaScript
          source: >-
            const options = {method: 'GET', headers: {'X-API-KEY':
            '<api-key>'}};


            fetch('https://api.coinstats.app/v1/prediction/markets/<slug>/price-at?t=<t>',
            options)
              .then((response) => response.json())
              .then((response) => console.log(response))
              .catch((err) => console.error(err));
        - lang: php
          label: PHP
          source: |-
            <?php

            $curl = curl_init();

            curl_setopt_array($curl, [
              CURLOPT_URL => "https://api.coinstats.app/v1/prediction/markets/<slug>/price-at?t=<t>",
              CURLOPT_RETURNTRANSFER => true,
              CURLOPT_CUSTOMREQUEST => "GET",
              CURLOPT_HTTPHEADER => [
                "X-API-KEY: <api-key>"
              ],
            ]);

            $response = curl_exec($curl);
            $err = curl_error($curl);

            curl_close($curl);

            if ($err) {
              echo "cURL Error #:" . $err;
            } else {
              echo $response;
            }
        - lang: go
          label: Go
          source: "package main\n\nimport (\n\t\"fmt\"\n\t\"io\"\n\t\"net/http\"\n)\n\nfunc main() {\n\n\turl := \"https://api.coinstats.app/v1/prediction/markets/<slug>/price-at?t=<t>\"\n\n\treq, _ := http.NewRequest(\"GET\", url, nil)\n\n\treq.Header.Add(\"X-API-KEY\", \"<api-key>\")\n\n\tres, _ := http.DefaultClient.Do(req)\n\n\tdefer res.Body.Close()\n\tbody, _ := io.ReadAll(res.Body)\n\n\tfmt.Println(string(body))\n}"
        - lang: java
          label: Java
          source: >-
            HttpResponse<String> response =
            Unirest.get("https://api.coinstats.app/v1/prediction/markets/<slug>/price-at?t=<t>")
              .header("X-API-KEY", "<api-key>")
              .asString();
components:
  schemas:
    MarketPriceAtResponseDto:
      type: object
      properties:
        success:
          type: boolean
          description: Whether the request succeeded
          example: true
        timestamp:
          type: string
          description: ISO 8601 timestamp the response was generated
          example: '2025-06-19T12:00:00.000Z'
        cached:
          type: boolean
        data:
          $ref: '#/components/schemas/MarketPriceAtDataDto'
      required:
        - success
        - timestamp
        - data
    MarketPriceAtDataDto:
      type: object
      properties:
        conditionId:
          type: string
        slug:
          type: string
        outcome:
          type: string
        at:
          type: number
        price:
          type: number
        observedAt:
          type: number
        interval:
          type: string
  securitySchemes:
    X-API-KEY:
      type: apiKey
      in: header
      name: X-API-KEY
      description: >-
        API key required to access the endpoints. Generate one from your
        dashboard at https://openapi.coinstats.app and pass it in the
        `X-API-KEY` request header. Never expose your key in client-side code.

````