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CSV Filter Rows
x402
CSV Filter Rows is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Filters CSV rows in-memory, keeping only rows where a specified column's value matches one of a caller-supplied allowlist of values, returning counts and normalized results as versioned deterministic JSON.
Price / call$0.001
Success—
StatusUnknown
How this service works
CSV Filter Rows: CSV Filter Rows keeps CSV rows whose column equals one of caller values from bounded caller-supplied values without an external provider. Call CSV Filter Rows before an agent hands structured data or a batch plan to a downstream tool with a stricter contract. Returns the bounded transformation or validation finding with counts, normalized values, and a versioned result contract for CSV Filter Rows as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base. First-party…
Output
A versioned deterministic JSON object containing the filtered CSV rows (only those where the specified column matched one of the allowed values), row counts (total input rows, matching rows, excluded rows), normalized column values, and a versioned result contract identifier.
Example use cases
Pre-flight data contract enforcement
“Before sending this order CSV to the fulfillment API, filter it down to only rows where the 'region' column is 'US', 'CA', or 'MX' — the downstream system only accepts those three.”
Category allowlist filtering for reporting
“I have a product CSV and I only want rows where 'category' is 'electronics' or 'appliances' — filter out everything else and tell me how many rows remain.”
Status-based row selection before batch job
“Take this jobs CSV and keep only the rows where 'job_status' equals 'queued' or 'retry' — I need to pass just those to the batch processor.”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/csv-filter-rowsWhen to prefer
Use this endpoint when an agent needs to deterministically subset a CSV dataset to rows matching an exact column-value allowlist before handing structured data to a downstream tool with a strict input contract. Prefer this over general-purpose code execution when you need a lightweight, in-memory, no-retention, versioned result that's safe to call in a pipeline without side effects.
Side effects
- Column name not found in CSV header — returns validation error indicating missing column
- CSV text malformed or unparseable — returns parse error with description
- Allowed values array empty — may return zero rows or an error indicating no filter criteria
- Input CSV exceeds 8192-character limit — request rejected with size error
- More than 256 allowed values provided — request rejected with array length error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | Text supplied to CSV Filter Rows; used only for this bounded calculation and processed in memory without retention. |
| column | string | Column supplied to CSV Filter Rows; used only for this bounded calculation and processed in memory without retention. |
| allowed | array | Allowed supplied to CSV Filter Rows; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"csv": "id,status\n1,ok",
"row_count": 1
},
"schema": "delx/util-csv-filter-rows/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "07a9a4966734b751aa1a99dbb6de90bbea45144ddd02a441e568987a6e041371",
"external_calls": 0
},
"operation": "data_batch:csv_filter_rows"
}
}Tags
x402
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