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Null Coverage — Base-100 Series + Two-Measure Correlation
x402
Null Coverage — Base-100 Series + Two-Measure Correlation is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-18).
Computes a base-100 index series and a two-measure Pearson/rank correlation report for null coverage data (missing_values and total_values) supplied in up to 200 rows.
Price / call$0.01
Success—
StatusUnknown
How this service works
Null coverage — Base-100 series + Two-measure correlation: Base-100 series + Two-measure correlation for supplied null coverage records (missing_values, total_values). 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 rebased index series for the selected field (missing_values or total_values) anchored at the specified base_index row, showing relative change over the supplied rows; and (2) a two-measure correlation report quantifying the statistical relationship between missing_values and total_values across all supplied rows. Both reports are computed locally with no external data lookups.
Example use cases
Monthly data completeness trend indexing
“I've got daily null coverage records across two dataset groups for the past quarter — please build a base-100 index series anchored at the first row for missing_values so I can see how completeness has trended over time.”
Correlation check between missing and total counts
“Can you run a two-measure correlation between missing_values and total_values across all my 120 null coverage rows? I want to know how strongly these two metrics move together.”
Group-level null rate baseline comparison
“I have null coverage records for group-a and group-b over 80 days. Build me a base-100 index starting at row 0 on total_values and also show the correlation between missing_values and total_values so I can compare the two groups.”
Technical details
Endpoint
POSThttps://market.datapackvibe.com/x402/assistant-ib26-analytics-03-165?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you already have null coverage data in hand (missing_values and total_values per row) and need two specific offline statistical outputs — a base-100 rebased time series and a cross-measure correlation — without any live data fetching, prediction, or external enrichment. It is ideal for lightweight data quality audits where both a trend index and a correlation check are needed in a single call at minimal cost.
Side effects
- Missing required fields (row_id, date, missing_values, total_values) cause validation errors
- Submitting more than 200 rows returns an array-length validation error
- Invalid date format (not YYYY-MM-DD) causes a pattern validation failure
- base_index pointing to a null or missing field value may produce undefined index anchoring
- All-null missing_values or total_values columns may produce undefined correlation results
- Payment not included or incorrect USDC amount results in 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| rows | array | |
| field | string | |
| base_index | integer |
Tags
x402
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