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Relaystation CSV Select (Column Filter/Reorder)
x402
Relaystation CSV Select (Column Filter/Reorder) is a paid API for AI agents from api.relaystation.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).
Keeps, drops, or reorders columns in a CSV table to reshape data for downstream pipeline steps.
Price / call$0.01
Success—
StatusUnknown
How this service works
$0.0002/MB. Keep, drop, or reorder columns in a table — shape data for the next step. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny
Output
A CSV file containing only the selected columns, in the specified order, with all other columns removed. The response reflects the same rows as the input but shaped to the requested column structure.
Example use cases
Strip PII before sharing dataset
“I need to share this user export CSV with our analytics vendor but first remove the 'ssn', 'address', and 'phone' columns — keep everything else and send me the cleaned file.”
Reorder columns for report template
“Our reporting template requires columns in this order: 'date', 'region', 'revenue', 'units_sold' — can you rearrange this sales CSV to match that layout and drop any extra columns?”
Narrow wide table for next pipeline step
“This CSV has 40 columns but the next step only needs 'product_id', 'sku', 'price', and 'stock_qty' — select just those four columns in that order so I can pass it along.”
Technical details
Endpoint
POSThttps://api.relaystation.ai/v1/csv/selectWhen to prefer
Choose this endpoint when you need a lightweight, paid-per-MB column selection step inside an automated agent pipeline and want a simple HTTP call without setting up local data processing. Especially useful when chaining Relaystation pipeline steps, since unused columns balloon payload size and cost for subsequent steps.
Side effects
- Column name not found in input CSV — returns error indicating missing column
- Malformed or unparseable CSV input — returns parse error
- Empty column selection list — may return empty table or error
- Input data exceeds size limits or budget — billing/quota error
- Network timeout on large uploads
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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