> ## Documentation Index > Fetch the complete documentation index at: https://docs.cryptorank.io/llms.txt > Use this file to discover all available pages before exploring further. # Exchange Monthly Volume Chart > Monthly adjusted and reported trading volumes (USD and BTC) over the selected multi-year period. Complements the daily [Exchange Volume Chart](https://docs.cryptorank.io/api-reference/exchanges/exchange-volume-chart).

Available from: Advanced
Cost: 1 credit per request The current calendar month is partial — it holds the volume accumulated so far and updates daily. Explicit periods deeper than your plan's history limit return `403 PLAN_LIMIT_EXCEEDED`. Use `all` to get the deepest window your plan allows. ## OpenAPI ````yaml https://api.cryptorank.io/v3/documentation-json get /v3/exchanges/{id}/volume-chart/monthly openapi: 3.0.0 info: title: Cryptorank API V3 description: > # Overview Cryptorank Public API v3 — comprehensive cryptocurrency data for B2B clients and partners. Useful Links: - [API Plans](https://cryptorank.io/public-api) - [Dashboard](https://cryptorank.io/public-api/dashboard) # Getting Started Primary Server URL: [https://api.cryptorank.io/v3/](https://api.cryptorank.io/v3/) **Authentication** Generate an API key in the [dashboard](https://cryptorank.io/public-api/dashboard) and pass it in the `X-Api-Key` header. Keep your keys secret — never commit them to public repositories or expose them in client-side code. version: 3.0.0 contact: name: Cryptorank Team url: https://cryptorank.io email: info@cryptorank.io servers: - url: https://api.cryptorank.io security: [] tags: [] paths: /v3/exchanges/{id}/volume-chart/monthly: get: tags: - Exchanges summary: Exchange Monthly Volume Chart description: >- **Description** Monthly adjusted and reported trading volumes (USD and BTC) over the selected multi-year period. Complements the daily [Exchange Volume Chart](https://docs.cryptorank.io/api-reference/exchanges/exchange-volume-chart). > **Note:** The current calendar month is partial — it holds the volume accumulated so far and updates daily. Explicit periods deeper than your plan's history limit return `403 PLAN_LIMIT_EXCEEDED`. Use `all` to get the deepest window your plan allows. **Access** - Available from: **Advanced** - Cost: 1 credit per request operationId: ExchangesController_getMonthlyVolumeChart parameters: - name: id required: true in: path description: >- Exchange ID. See: [GET /v3/exchanges/map](https://docs.cryptorank.io/api-reference/exchanges/exchanges-map). schema: type: integer example: 200 - name: period required: false in: query description: >- Look-back period. Explicit values deeper than your plan's history limit return `403 PLAN_LIMIT_EXCEEDED` — Advanced up to `2y`, Pro up to `5y`, Business up to `10y`. `all` never fails: it returns the deepest window available on your plan. `ytd` covers the current calendar year. schema: default: 2y type: string enum: - 1y - 2y - 3y - 5y - 10y - ytd - all responses: '200': description: '' content: application/json: schema: type: object required: - data - status properties: data: type: array items: $ref: '#/components/schemas/ExchangeMonthlyVolumePointDto' status: $ref: '#/components/schemas/ResponseStatusDto' '400': description: Request validation failed content: application/json: schema: type: object required: - error properties: error: type: object required: - code - message - status properties: code: type: string enum: - VALIDATION_ERROR example: VALIDATION_ERROR message: type: string example: Validation failed status: type: number example: 400 '401': description: API key is missing or invalid content: application/json: schema: type: object required: - error properties: error: type: object required: - code - message - status properties: code: type: string enum: - API_KEY_MISSING - API_KEY_INVALID example: API_KEY_MISSING message: type: string example: API key is missing status: type: number example: 401 '403': description: >- No active subscription, the endpoint is not available in your plan, or the request goes beyond what your plan allows content: application/json: schema: type: object required: - error properties: error: type: object required: - code - message - status properties: code: type: string enum: - NO_ACTIVE_SUBSCRIPTION - ENDPOINT_NOT_AVAILABLE - PLAN_LIMIT_EXCEEDED example: NO_ACTIVE_SUBSCRIPTION message: type: string example: No active subscription found status: type: number example: 403 '404': description: Exchange not found content: application/json: schema: type: object required: - error properties: error: type: object required: - code - message - status properties: code: type: string enum: - NOT_FOUND example: NOT_FOUND message: type: string example: Resource not found status: type: number example: 404 '429': description: Rate limit or credit limit exceeded content: application/json: schema: type: object required: - error properties: error: type: object required: - code - message - status properties: code: type: string enum: - RATE_LIMIT_EXCEEDED - DAILY_CREDITS_EXCEEDED - MONTHLY_CREDITS_EXCEEDED example: RATE_LIMIT_EXCEEDED message: type: string example: Rate limit exceeded status: type: number example: 429 '500': description: Internal server error content: application/json: schema: type: object required: - error properties: error: type: object required: - code - message - status properties: code: type: string enum: - INTERNAL_ERROR example: INTERNAL_ERROR message: type: string example: Internal server error status: type: number example: 500 security: - X-Api-Key: [] components: schemas: ExchangeMonthlyVolumePointDto: type: object properties: time: type: number example: 1748736000000 description: >- Calendar month start (bucket start), Unix timestamp in milliseconds (UTC). adjustedVolume: type: string example: '1180000000000' description: Adjusted trading volume accumulated over the month, USD. reportedVolume: type: string example: '1260000000000' description: Reported trading volume accumulated over the month, USD. adjustedVolumeBtc: type: string example: '19500000' description: Adjusted trading volume accumulated over the month, BTC. reportedVolumeBtc: type: string example: '20800000' description: Reported trading volume accumulated over the month, BTC. required: - time - adjustedVolume - reportedVolume - adjustedVolumeBtc - reportedVolumeBtc ResponseStatusDto: type: object properties: usedCredits: type: number example: 1 description: Credits charged for this request timestamp: type: number example: 1780000000000 description: Server time of the response. Unix timestamp in milliseconds required: - usedCredits - timestamp securitySchemes: X-Api-Key: name: X-Api-Key type: apiKey in: header ````