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CSV Header Reader
x402
CSV Header Reader is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).
Parses the first row of a UTF-8 CSV string and returns the column header names as a list
Price / call$0.001
Success—
StatusUnknown
How this service works
CSV header row. Use to map columns before import or transformation steps. Returns the first-row headers as a list. $0.001 USDC per successful call via x402 on Base—deterministic first-party JSON, no API key, no subscription, and nothing is billed on structured validation errors.
Output
A JSON list of header strings extracted from the first row of the provided CSV text, e.g. ["name", "email", "age"]. Returns deterministic first-party output with no third-party data upload. Structured validation errors are not billed.
Example use cases
Pre-import column mapping
“Before I import this CSV into my database, can you tell me what columns it has? Here's the raw text: 'product_id,sku,price,stock_qty,category\n101,ABC-1,9.99,50,Electronics'”
ETL pipeline schema discovery
“I'm setting up a data transformation pipeline and need to know the field names in this CSV before I write the mapping rules — can you extract the headers? The CSV starts with: 'customer_id,first_name,last_name,email,country,created_at'”
Validate CSV before processing
“Can you check what headers this CSV has so I can confirm it includes the required columns like 'order_id' and 'amount' before we run the import? Here's the file content: 'order_id,amount,currency,status\n1001,49.99,USD,pending'”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/csv-headersWhen to prefer
Choose this endpoint when you need a lightweight, deterministic way to introspect CSV column names before an import, transformation, or mapping step — especially in agentic pipelines where you want to avoid paying for a full parse. Ideal when you don't have a local CSV parser available, need a consistent JSON list output, and want a no-subscription micro-cost utility with no API key setup. Prefer this over full CSV parsing services when you only need the header row.
Side effects
- Empty or blank csv_text input causing a validation error (not billed)
- CSV with no newline — treated as a single-row file, all text returned as one header
- Malformed UTF-8 encoding causing a parse error
- Missing csv_text field in request body returning a structured validation error
- Payment failure or insufficient USDC balance blocking the call
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| csv_text | string | UTF-8 CSV text. Parsed locally; not uploaded to third parties. |
Output
Schema · Response
{
"type": "json",
"example": {
"count": 2,
"schema": "delx/csv-headers/v1",
"headers": [
"name",
"score"
]
}
}Tags
x402
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