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Delx Commerce — CSV Select Columns
x402
Delx Commerce — CSV Select Columns is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).
Filters a CSV text to retain only the specified columns, returning the trimmed CSV and a list of any missing columns.
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.
Output
Returns a JSON object with a 'result' field containing the filtered CSV string (only the requested columns) and a 'missing_columns' array listing any requested column names not found in the input. Also includes an evidence block confirming no data was retained or sent to external services, plus an input SHA-256 hash for verifiability.
Example use cases
Trim report CSV for downstream pipeline
“I have a big CSV export from our CRM with 30 columns. I only need 'customer_id', 'email', and 'signup_date' for my next processing step — can you strip out everything else and tell me if any of those columns are missing?”
Prepare agent output for display
“My agent produced a CSV with tons of internal fields. Please keep only 'product_name', 'price', and 'stock_qty' columns and return the cleaned CSV so I can show it to the user.”
Validate expected columns exist in upload
“A user uploaded this CSV and I need to check it has 'order_id', 'amount', and 'status' columns — can you select just those columns and flag any that are absent?”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/csv-select-columns?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-call, no-signup CSV column filter with cryptographically verifiable processing evidence. Ideal for AI agents that handle untrusted or ad-hoc CSV data and need a guaranteed stateless operation (no retention) with a fixed $0.001 USDC cost settled on-chain.
Side effects
- Input CSV exceeds 8192 character limit — request will be rejected
- Column name array exceeds 256 items — request will be rejected
- Malformed CSV text that cannot be parsed — may return empty or incorrect output
- All requested columns are missing — returns empty CSV with all columns listed in missing_columns
- Payment not fulfilled via x402 — 402 response returned before processing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | Text supplied to CSV Select Columns; used only for this bounded calculation and processed in memory without retention. |
| columns | array | Columns supplied to CSV Select Columns; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"csv": "id,name\n1,Ada",
"missing_columns": []
},
"schema": "delx/util-csv-select-columns/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "d19e782e6b173d1489b6e605e278b382ef74b15f275dee76c0dc4c423a5764a3",
"external_calls": 0
},
"operation": "data_batch:csv_select_columns"
}
}Tags
x402
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