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Feed Observations Base-100 Series and Secondary-Measure Weighted Mean
x402
Feed Observations Base-100 Series and Secondary-Measure Weighted Mean is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-22).
Computes a base-100 index series and a secondary-measure weighted mean for up to 200 rows of feed observation data (item_count, duplicate_items) using local analytical engines.
Price / call$0.01
Success—
StatusUnknown
How this service works
Feed observations — Base-100 series + Secondary-measure weighted mean: Base-100 series + Secondary-measure weighted mean for supplied feed observations records (item_count, duplicate_items). Up to 200 rows; 2 independent reports using shared local analytical engines. No live lookup, prediction, professional assessment or external action. 0.01 USDC includes 2 supplied-data reports for up to 200 rows.
Output
Returns two analytical reports: (1) a base-100 index series for the chosen field (item_count or duplicate_items) relative to the specified base row, and (2) a secondary-measure weighted mean across the supplied feed observation rows. Both are computed locally with no external lookups, covering up to 200 input rows.
Example use cases
Duplicate rate trend analysis
“I've got a week of feed observation records across two site groups — can you index the duplicate_items values as a base-100 series starting from the first row and also give me the weighted mean for that metric? Here's the data: group-a on 2026-10-01 had 10 items and 1 duplicate, group-a on 2026-10-03 had 15 items and 3 duplicates, group-b on 2026-10-02 had 20 items and 2 duplicates, group-b on 2026-10-04 had 30 items and 4 duplicates.”
Item count normalization for reporting
“Can you create a base-100 index series for item_count across these four feed observation rows and also calculate the secondary weighted mean? Use row 0 as the base. My data: group-a 2026-10-01 item_count=10 duplicates=1, group-b 2026-10-02 item_count=20 duplicates=2, group-a 2026-10-03 item_count=15 duplicates=3, group-b 2026-10-04 item_count=30 duplicates=4.”
Cross-site-group feed quality comparison
“I need two reports on my feed observations: a base-100 series and a weighted mean — for item_count, anchored at base_index 0. The records are: row-1 group-a 2026-10-01 item_count=100 duplicate_items=5, row-2 group-b 2026-10-01 item_count=200 duplicate_items=10, row-3 group-a 2026-10-02 item_count=150 duplicate_items=8.”
Technical details
Endpoint
POSThttps://market.datapackvibe.com/x402/assistant-ib26-web-11-166?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you have tabular feed observation data with item counts and duplicate item counts and need both a base-100 normalized index series and a weighted mean computed in a single call, without any external data lookups or live predictions. It is cost-effective at $0.01 USDC for two reports on up to 200 rows. Prefer it over general analytics APIs when working specifically with feed monitoring data keyed by site_group and date.
Side effects
- Fewer than 1 row supplied — request rejected
- More than 200 rows supplied — exceeds maxItems limit
- Invalid date format (not YYYY-MM-DD) — schema validation error
- base_index out of range (≥ number of rows) — index out of bounds error
- Missing required fields (row_id, site_group, date, item_count, duplicate_items) — validation failure
- Payment not included or insufficient — x402 payment required error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| rows | array | |
| field | string | |
| base_index | integer |
Tags
x402
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