Seerfar Ozon Category Search
This skill lists the products of a specific Ozon category from the Seerfar analytics database. Given a categoryId, it returns category-level aggregates (total sales, total revenue, average price, average rating, seasonality) plus each product's sales, price, rating, review count, brand and seller — the starting point for category selection analysis, best-seller mining within a category, and category capacity / price-band analysis.
Core Concepts
Unit of data is the product, scoped to one category: pass a single categoryId and receive that category's product list with performance metrics, alongside category-level aggregates. This is a category-level view, not a shop or keyword view.
Where the categoryId comes from: categoryId is the Ozon category identifier — a hierarchical path joined by _ (e.g. 15621032_15621049_115951147), obtained from the Ozon category document or from other Seerfar Ozon tools. If the user only has a category name, first resolve it to a categoryId from an upstream Seerfar Ozon source before calling this skill.
Category aggregates vs product rows: the response carries both category-level totals (totalSales, totalRevenue, avgPrice, rating, seasonalityAmplitude, seasonalityCoef, startDate/endDate) and a paginated product list (data / products). Use the aggregates for category sizing and the rows for individual product analysis.
Sales & price currency: sales / monthlySalesUnits are units; price / revenue are in Russian rubles (₽), indicated by currency.
Time window: by default the data covers the last 30 days (startDate / endDate show the actual range). Pass date as yyyy-MM (e.g. 2026-02) to query a historical month snapshot.
Parameters
| Parameter |
Type |
Required |
Description |
| categoryId |
string |
yes |
Ozon category ID, e.g. 15621032_15621049_115951147 (levels joined by _). |
| page |
object |
yes |
Pagination {page, pageSize, orders[]}. |
| page.page |
integer |
no |
Page number, from 1 (default 1). |
| page.pageSize |
integer |
no |
Page size, default 20. Max 20 — larger values are rejected (errcode 1002). |
| page.orders |
array |
no |
Sort rules, elements {field, direction} (both required); direction DESC/ASC. Common fields: sales, price, revenue, reviewRating. |
| date |
string |
no |
Historical month yyyy-MM (e.g. 2026-02); omit for last 30 days. |
| fulfillment |
string |
no |
Fulfillment filter, one of FBO / FBS / RFBS / FBP / OZON; omit to query all. Single string, not an array. |
| uId |
string |
no |
User ID. |
| memberId |
string |
no |
Member ID (data attribution). |
Only categoryId and page are required.
Calling the Tool
- API Endpoint:
/seerfar/ozon/categorySearch (full parameters/responses/error codes in references/api.md)
- Python Script:
python scripts/ozon_category_search.py '<JSON params>' [--inline]
- Cost constraint: This tool consumes credits. Within the same session and same parameter combination, it defaults to a single call with a 24-hour local cache. Do not automatically retry with different keywords, pagination, or parameters on failure/empty results. Inform the user of additional credit consumption before continuing retrieval.
Output strategy (script default behavior):
- Always write the full response to
<cwd>/nexscope/<YYYY-MM-DD>/<session>/data/ecommerce-ozon-category-search-<timestamp>.json (<cwd> is the working directory when the script executes, which in Claude Code is the current project directory; <session> is taken from the SESSION_ID environment variable, automatically grouped by user task; do not write to /tmp; error if the current directory is not writable)
- Response body <= 8 KB: write to disk then print full JSON to stdout
- Response body > 8 KB: write to disk then print only a summary to stdout (top-level fields, common counts like
total/costToken, length of the largest list field + first 3 samples)
- Add
--inline to force full output to stdout (still writes to disk)
Reading data: Check the summary first to determine if it is sufficient. When specific fields are needed, use jq or ConvertFrom-Json to extract from the saved JSON file as needed, avoiding loading the entire JSON into context.
Authentication & Credits
If you encounter authentication or credit issues:
Error conditions
- API Key not configured: The
NEXSCOPE_API_KEY environment variable is not set.
- HTTP 401 or 402 status code
- Insufficient credits/balance: Response message indicates credit balance exhausted, quota exceeded, subscription expired, or recharge required.
Resolution steps
- Set the
NEXSCOPE_API_KEY environment variable with a valid API key.
- If credits are insufficient, visit https://www.nexscope.ai/pricing?co-from=skillNS to top up your balance.
- For onboarding and setup guidance, refer to https://www.nexscope.ai/help/skills-external-access?co-from=skillNS
Usage Examples
1. Category best-sellers (sort by 30-day sales)
{"categoryId": "15621032_15621049_115951147", "page": {"page": 1, "pageSize": 20, "orders": [{"field": "sales", "direction": "DESC"}]}}
2. Category top-revenue products
{"categoryId": "15621032_15621049_115951147", "page": {"page": 1, "pageSize": 20, "orders": [{"field": "revenue", "direction": "DESC"}]}}
3. Category premium price band (highest-priced)
{"categoryId": "15621032_15621049_115951147", "page": {"page": 1, "pageSize": 20, "orders": [{"field": "price", "direction": "DESC"}]}}
4. Historical month snapshot
{"categoryId": "15621032_15621049_115951147", "date": "2026-02", "page": {"page": 1, "pageSize": 20, "orders": [{"field": "sales", "direction": "DESC"}]}}
5. Filter to FBO-fulfilled products only
{"categoryId": "15621032_15621049_115951147", "fulfillment": "FBO", "page": {"page": 1, "pageSize": 20, "orders": [{"field": "sales", "direction": "DESC"}]}}
6. Page deeper into the category
{"categoryId": "15621032_15621049_115951147", "page": {"page": 2, "pageSize": 20, "orders": [{"field": "sales", "direction": "DESC"}]}}
How to Build Queries
- Always pass
page.orders: categories can contain many products — sort by the metric you care about (sales DESC for best-sellers, revenue DESC for top revenue, price DESC for the premium band, reviewRating DESC for best-reviewed).
- Keep
pageSize ≤ 20: the gateway caps page size at 20. Use page.page to paginate; check hasNextPage to know whether more pages exist.
- Resolve the
categoryId first: if the user gives a category name rather than an id, obtain the categoryId from an upstream Seerfar Ozon source before calling this skill.
- Use category aggregates for sizing:
totalSales, totalRevenue, avgPrice and rating describe the whole category at a glance — use them for capacity and price-band assessment before drilling into rows.
- Use
date for historical comparison: pass date as yyyy-MM to compare a past month against the current 30-day window.
fulfillment is a single string: pass one of FBO / FBS / RFBS / FBP / OZON, not an array.
Display Rules
- Present data only: show the category aggregates and product metrics in a clear table without subjective advice.
- Lead with category context, then product columns: state the category name (from
categoryInfo.cnTitlePath / enTitlePath — confirms the right category), then totalSales, totalRevenue, avgPrice, rating, seasonality (seasonalityAmplitude / seasonalityCoef) and date range, plus the fulfillment distribution (sellerType map) as a one-line FBO/FBS/RFBS/... split; then a table of sku, title, price, sales, revenue, reviewRating, reviewCount, brandName, sellerName.
- Currency:
price / revenue are in rubles (₽); render with the currency symbol.
- Fulfillment:
fulfillment is an array (e.g. ["FBO"]); join multiple values with /.
- Unified vs original fields:
productId/rating/brand/monthlySalesUnits/monthlySalesRevenue/productPageUrl mirror sku/reviewRating/brandName/sales/revenue/productUrl — show one set, prefer the originals.
- Pagination guidance: when
hasNextPage is true, tell the user more pages are available via page.page; remind them pageSize is capped at 20.
- Empty category: a non-existent
categoryId returns success with total=0 and no data — tell the user the id may be wrong rather than reporting a system error.
- Error handling: when
code is not "200" (or errcode is not 200), explain the reason from msg / errmsg and suggest fixes (add page, lower pageSize, retry on rate-limit).
Important Limitations
categoryId and page are both required; omitting either returns errcode 400.
pageSize max 20: exceeding it returns errcode 1002.
- No text/keyword filter within a category: this endpoint filters by category (plus optional
fulfillment and date) only; to find products by keyword, use the Seerfar Ozon market keyword search skill.
total is the page row count, not the category's total product count — use hasNextPage to decide whether to fetch more pages.
sellerType is a fulfillment distribution, not seller type: despite the name, the top-level sellerType is a map of fulfillment model → product count ({FBO, RFBS, FBP, FBS, OZON}); it does not carry local/cross-border (local/cross-border) info. categoryInfo carries the category name path (CN/EN/RU) and crossBorderSellable.
User Expression & Scenario Quick Reference
Applicable — analyzing one Ozon category's products and aggregates:
| User Says |
Scenario |
| "Analyze products in this Ozon category" / "How big is this category" |
Category sizing (totalSales / totalRevenue / avgPrice) |
| "What are the best-selling products in this category" |
Best-seller mining (sort by sales) |
| "Top-revenue products in this category" |
Top-revenue products (sort by revenue) |
| "Price band / average order value in this category" |
Price-band analysis (sort by price) |
| "Best-reviewed products in this category" |
Best-reviewed (sort by reviewRating) |
| "Last month's data for this category" |
Historical month snapshot (date) |
| "FBO products in this category" |
Fulfillment filter |
Not applicable — Needs beyond one category's product list:
- One shop/seller's catalog → use the Seerfar Ozon shop search skill.
- Market-level keyword discovery → use the Seerfar Ozon market keyword search skill.
- Keyword mining → use the Seerfar Ozon keyword mining skill.
- A single product's full detail → use a product-level Seerfar Ozon source (this skill returns category-level fields only).
Boundary judgment: if the user already has a categoryId (or one resolved from an upstream source) and wants to enumerate, rank, or size that category's products by sales/price/rating, start here. If they want a shop's catalog, keyword discovery, or a single product's deep detail, route to the corresponding Seerfar Ozon skill.