> ## Documentation Index > Fetch the complete documentation index at: https://docs.alura.io/llms.txt > Use this file to discover all available pages before exploring further. # Get a product's sales history > An Etsy product's (another seller's listing) monthly sales history. Every completed UTC calendar month of estimated sales, estimated revenue (whole USD, valued at the current price, not the price at the time) and reviews written, oldest first, in one response. The month still running is never included; a month Alura has no values for is listed with nulls. Carries `methodology_version` and `methodology_url`: estimates can change as late reviews arrive. Needs a plan with full historic data (Growth and above; otherwise 403 `plan_required`). History never fetches anything: a resource Alura has not seen is 404 `not_found`. Cost: 1 API credit per call. ## OpenAPI ````yaml /openapi.json get /v1/research/products/{id}/history openapi: 3.1.0 info: title: Alura API version: 1.0.0 description: Etsy market research for scripts and AI assistants. servers: - url: https://api.alura.io security: - apiKey: [] paths: /v1/research/products/{id}/history: get: summary: Get a product's sales history description: >- An Etsy product's (another seller's listing) monthly sales history. Every completed UTC calendar month of estimated sales, estimated revenue (whole USD, valued at the current price, not the price at the time) and reviews written, oldest first, in one response. The month still running is never included; a month Alura has no values for is listed with nulls. Carries `methodology_version` and `methodology_url`: estimates can change as late reviews arrive. Needs a plan with full historic data (Growth and above; otherwise 403 `plan_required`). History never fetches anything: a resource Alura has not seen is 404 `not_found`. Cost: 1 API credit per call. operationId: research.products.history parameters: - name: id in: path required: true schema: type: string pattern: ^[1-9][0-9]{0,19}$ description: Etsy listing ID. example: '4524717183' - name: fields in: query required: false description: >- Comma-separated dotted paths to return; `id`, `object` and `as_of` always come back. schema: type: string responses: '200': description: OK headers: Request-Id: $ref: '#/components/headers/Request-Id' Alura-Credits-Cost: $ref: '#/components/headers/Alura-Credits-Cost' Alura-Credits-Remaining: $ref: '#/components/headers/Alura-Credits-Remaining' content: application/json: schema: type: object properties: object: type: string const: research.history resource: type: object properties: object: type: string enum: - research.product - research.shop id: type: string description: Etsy ID, as a string. required: - object - id additionalProperties: false description: Whose history this is. granularity: type: string const: month history_through: type: string pattern: ^\d{4}-(0[1-9]|1[0-2])$ description: >- The last completed UTC month. The month still running is never included. methodology_version: type: string description: The version of the estimate methodology the values follow. methodology_url: type: string description: How the estimates are made, and how accurate they are. data: anyOf: - type: array items: type: object properties: month: type: string pattern: ^\d{4}-(0[1-9]|1[0-2])$ description: A UTC calendar month, `YYYY-MM`. est_sales: description: >- Estimated sales in the month; null when Alura has no value for it. Estimate: see the methodology (version 2026-10) at https://docs.alura.io/methodology/sales-estimates. type: - number - 'null' est_revenue_usd: description: >- Estimated revenue in the month, whole USD, valued at the current price (not the price at the time); null when the sales or the price are unknown. Estimate: see the methodology (version 2026-10) at https://docs.alura.io/methodology/sales-estimates. type: - number - 'null' reviews: anyOf: - type: integer - type: 'null' description: Reviews written in the month; null when unknown. required: - month - est_sales - est_revenue_usd - reviews additionalProperties: false - type: 'null' description: >- Every completed month from the first Alura has through `history_through`, oldest first. A month Alura has no values for is in the list with nulls, never 0. null when Alura has no usable history for this resource. as_of: type: string description: ISO 8601, UTC. When this data was last updated from Etsy. required: - object - resource - granularity - history_through - methodology_version - methodology_url - data - as_of additionalProperties: false example: object: research.history resource: object: research.product id: '4524717183' granularity: month history_through: 2026-09 methodology_version: 2026-10 methodology_url: https://docs.alura.io/methodology/sales-estimates data: - month: 2026-06 est_sales: 198 est_revenue_usd: 5366 reviews: 17 - month: 2026-07 est_sales: 214 est_revenue_usd: 5799 reviews: 19 - month: 2026-08 est_sales: null est_revenue_usd: null reviews: null - month: 2026-09 est_sales: 236 est_revenue_usd: 6396 reviews: 21 as_of: '2026-10-13T09:30:00Z' '400': $ref: '#/components/responses/Problem400' '401': $ref: '#/components/responses/Problem401' '402': $ref: '#/components/responses/Problem402' '403': $ref: '#/components/responses/Problem403' '404': $ref: '#/components/responses/Problem404' '405': $ref: '#/components/responses/Problem405' '429': $ref: '#/components/responses/Problem429' '500': $ref: '#/components/responses/Problem500' '503': $ref: '#/components/responses/Problem503' x-codeSamples: - lang: bash label: cURL source: >- curl "https://api.alura.io/v1/research/products/4524717183/history" \ -H "Authorization: Bearer $ALURA_API_KEY" - lang: typescript label: TypeScript source: >- const res = await fetch('https://api.alura.io/v1/research/products/4524717183/history', { headers: { Authorization: `Bearer ${process.env.ALURA_API_KEY}`, }, }); console.log(await res.json()); - lang: python label: Python source: |- import json import os import urllib.request request = urllib.request.Request( "https://api.alura.io/v1/research/products/4524717183/history", headers={ "Authorization": f"Bearer {os.environ['ALURA_API_KEY']}", }, ) with urllib.request.urlopen(request) as response: print(json.load(response)) components: headers: Request-Id: description: '`req_` + ULID; quote it when reporting a problem.' schema: type: string Alura-Credits-Cost: description: API credits this call cost. schema: type: integer Alura-Credits-Remaining: description: >- API credits left in the workspace's monthly allowance, counting calls still in flight. Absent when it cannot be read right now. schema: type: integer responses: Problem400: description: Error content: application/problem+json: schema: $ref: '#/components/schemas/Problem' example: type: https://docs.alura.io/errors/invalid_request title: Invalid request status: 400 code: invalid_request detail: Invalid request suggestion: Fix the request as the detail says, then send it again. retryable: false request_id: req_01JQ5W3H8M2N4P6R8T0V2X4Z6B Problem401: description: Error content: application/problem+json: schema: $ref: '#/components/schemas/Problem' example: type: https://docs.alura.io/errors/unauthorized title: Unauthorized status: 401 code: unauthorized detail: Unauthorized suggestion: 'Send a valid API key as `Authorization: Bearer alura_sk_...`.' retryable: false request_id: req_01JQ5W3H8M2N4P6R8T0V2X4Z6B Problem402: description: Error content: application/problem+json: schema: $ref: '#/components/schemas/Problem' example: type: https://docs.alura.io/errors/credits_exhausted title: API credits exhausted status: 402 code: credits_exhausted detail: API credits exhausted suggestion: Upgrade the plan or wait for the monthly reset. retryable: false request_id: req_01JQ5W3H8M2N4P6R8T0V2X4Z6B Problem403: description: Error content: application/problem+json: schema: $ref: '#/components/schemas/Problem' example: type: https://docs.alura.io/errors/plan_required title: Plan required status: 403 code: plan_required detail: Plan required suggestion: Upgrade the workspace plan to use this operation. retryable: false request_id: req_01JQ5W3H8M2N4P6R8T0V2X4Z6B Problem404: description: Error content: application/problem+json: schema: $ref: '#/components/schemas/Problem' example: type: https://docs.alura.io/errors/not_found title: Not found status: 404 code: not_found detail: Not found suggestion: Check the ID, or search for it first. retryable: false request_id: req_01JQ5W3H8M2N4P6R8T0V2X4Z6B Problem405: description: Error content: application/problem+json: schema: $ref: '#/components/schemas/Problem' example: type: https://docs.alura.io/errors/method_not_allowed title: Method not allowed status: 405 code: method_not_allowed detail: Method not allowed suggestion: Use one of the methods in the Allow header. retryable: false request_id: req_01JQ5W3H8M2N4P6R8T0V2X4Z6B Problem429: description: Error content: application/problem+json: schema: $ref: '#/components/schemas/Problem' example: type: https://docs.alura.io/errors/rate_limited title: Rate limited status: 429 code: rate_limited detail: Rate limited suggestion: Wait for Retry-After, then retry. retryable: true request_id: req_01JQ5W3H8M2N4P6R8T0V2X4Z6B Problem500: description: Error content: application/problem+json: schema: $ref: '#/components/schemas/Problem' example: type: https://docs.alura.io/errors/internal_error title: Internal error status: 500 code: internal_error detail: Internal error suggestion: Retry; if it keeps failing, report the request_id. retryable: true request_id: req_01JQ5W3H8M2N4P6R8T0V2X4Z6B Problem503: description: Error content: application/problem+json: schema: $ref: '#/components/schemas/Problem' example: type: https://docs.alura.io/errors/credits_unavailable title: API credits unavailable status: 503 code: credits_unavailable detail: API credits unavailable suggestion: Retry shortly. retryable: true request_id: req_01JQ5W3H8M2N4P6R8T0V2X4Z6B schemas: Problem: type: object description: RFC 9457 problem details. properties: type: type: string format: uri title: type: string status: type: integer code: type: string description: A code from the error catalog; new codes may be added. x-extensible-enum: - invalid_request - unknown_parameter - invalid_cursor - cursor_window_exceeded - id_type_mismatch - invalid_keyword - unauthorized - credits_exhausted - plan_required - insufficient_scope - workspace_required - workspace_locked - browser_refused - role_required - impersonation_refused - recent_sign_in_required - not_found - not_found_on_etsy - shop_opted_out - method_not_allowed - conflict - key_limit_reached - idempotency_processing - unprocessable - rate_limited - throttled - daily_credit_cap_exceeded - credits_reserved - fetch_limit_reached - internal_error - upstream_unavailable - credits_unavailable - service_unavailable - fetch_unavailable - upstream_timeout detail: type: string suggestion: type: string retryable: type: boolean request_id: type: string upgrade_url: type: string format: uri description: 'credits_exhausted and plan_required: where to upgrade the plan.' credits_needed: type: integer description: 'API credit refusals: what the call needed.' credits_remaining: type: integer description: >- API credit refusals: what is left (of the month, or of the day for daily_credit_cap_exceeded). resets_at: type: string format: date-time description: >- credits_exhausted and daily_credit_cap_exceeded: when the limit resets. required: - type - title - status - code - detail - suggestion - retryable - request_id securitySchemes: apiKey: type: http scheme: bearer description: 'An API key: `Authorization: Bearer alura_sk_...`.' ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.