Ecommerce Fees

{
  "attribution": "Fee data by SellersCalc (https://www.sellerscalc.com)",
  "checked_at": "2026-10-15T10:56:54.601Z",
  "country": "US",
  "currency": "USD",
  "disclaimer": "Typical published US rates; many platforms vary fees by category, tier or volume, and revise schedules without notice. Verify against officialSource before any financial decision. Estimates only.",
  "estimate": {
    "effective_rate_pct": 10.63,
    "excluded_not_per_sale_or_not_seller_paid": [],
    "fixed_fees_total_usd": 0.45,
    "included": [
      "Transaction fee",
      "Payment processing",
      "Payment fixed fee",
      "Listing fee"
    ],
    "percent_fees_total_pct": 9.5,
    "sale_price_usd": 40,
    "seller_fees_usd": 4.25,
    "seller_net_usd": 35.75
  },
  "fees": [
    {
      "basis": null,
      "key": "transactionPct",
      "label": "Transaction fee",
      "note": null,
      "payer": "seller",
      "role": "charge",
      "type": "percent",
      "value": 6.5
    },
    {
      "basis": null,
      "key": "paymentPct",
      "label": "Payment processing",
      "note": null,
      "payer": "seller",
      "role": "charge",
      "type": "percent",
      "value": 3
    },
    {
      "basis": null,
      "key": "paymentFixed",
      "label": "Payment fixed fee",
      "note": null,
      "payer": "seller",
      "role": "charge",
      "type": "usd",
      "value": 0.25
    },
    {
      "basis": null,
      "key": "listingFee",
      "label": "Listing fee",
      "note": null,
      "payer": "seller",
      "role": "charge",
      "type": "usd",
      "value": 0.2
    }
  ],
  "id": "etsy",
  "kind": "marketplace",
  "last_reviewed": "2026-08-15",
  "license": "CC BY 4.0",
  "official_source": "https://www.etsy.com/legal/fees",
  "platform": "Etsy"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://saylorinnovations.com/api/ecommerce/fees/:platform?price=40'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://saylorinnovations.com/api/ecommerce/fees/:platform?price=40' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

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

// Pays at most $0.01 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.01" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.01 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fsaylorinnovations.com%2Fapi%2Fecommerce%2Ffees%2F%3Aplatform
const res = await pay("https://saylorinnovations.com/api/ecommerce/fees/:platform?price=40");
console.log(res.status, await res.text());

# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.01 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.01"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://saylorinnovations.com/api/ecommerce/fees/:platform?price=40")
    print(res.status_code, res.text)