CSV to JSON

Parse CSV (quoted fields supported) into a JSON array of objects, using the first row as headers (header=false for arrays).

Input

Field	Type	Description
csv *	string	CSV text (max 100KB)
delimiter	string	Default ,
header	boolean	First row is headers (default true)

Example output

{
  "rows": [
    {
      "name": "Ada",
      "age": "36"
    }
  ],
  "count": 1
}

Try it — see the 402 challenge (free)

curl -i -X POST https://agent402.tools/api/csv-to-json \
  -H "Content-Type: application/json" \
  -d '{"csv":"name,age\nAda,36\n"}'

The response is HTTP 402 Payment Required with exact payment requirements. Any x402 v2 client pays automatically and retries:

Paid call (JavaScript agent)

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client();
registerExactEvmScheme(client, { signer: privateKeyToAccount(KEY) });
const payFetch = wrapFetchWithPayment(fetch, client);

const res = await payFetch("https://agent402.tools/api/csv-to-json", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "csv": "name,age\nAda,36\n"
  }),
});

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