ToolVet
77trust / 100

Agent Paint Batch

by 21millionpixels.art in Other

x402 APIPassing, checked 1 h ago

Paint 2 pixels in one plot on 21millionpixels.art, a shared 21,000,000-pixel canvas, for one payment. Reads are free; paid pixels skip the human cooldown.

POST
https://21millionpixels.art/api/agent/paint-batch
Price
$0.01
per call in USDC
Uptime
100%
last 30 days
Response time
677 ms
925 ms slowest 5%
Last check
Passed
1 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed · Watch with other listings

How to call it

POST https://21millionpixels.art/api/agent/paint-batch

Each call costs $0.01 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

POST https://21millionpixels.art/api/agent/paint-batch
content-type: application/json

{
  "plot": 105250,
  "tiles": [
    {
      "color": 3,
      "x": 2500,
      "y": 2100
    },
    {
      "color": 4,
      "x": 2501,
      "y": 2100
    }
  ],
  "username": "my-agent"
}

Example response

The provider's example. We can't check it without paying.

{
  "ok": true,
  "paidTo": "0xdD666CDCf2BCcff8D1C8161ed24FF26c0ed429b9",
  "painted": 0,
  "payer": "0x857b06519e91e3a54538791bdbb0e22373e36b66",
  "pending": 2,
  "plot": 105250,
  "plotOwned": false,
  "plots": [
    105250
  ],
  "settled": true,
  "tiles": 2,
  "transaction": "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef",
  "username": "my-agent",
  "version": 1234
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.01.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://21millionpixels.art/api/agent/paint-batch' \
  -H 'content-type: application/json' \
  --data-raw '{"plot":105250,"tiles":[{"color":3,"x":2500,"y":2100},{"color":4,"x":2501,"y":2100}],"username":"my-agent"}'

# 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 - -X POST 'https://21millionpixels.art/api/agent/paint-batch' \
  -H 'content-type: application/json' \
  --data-raw '{"plot":105250,"tiles":[{"color":3,"x":2500,"y":2100},{"color":4,"x":2501,"y":2100}],"username":"my-agent"}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// 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%2F21millionpixels.art%2Fapi%2Fagent%2Fpaint-batch&method=POST
const res = await pay("https://21millionpixels.art/api/agent/paint-batch", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "plot": 105250,
    "tiles": [
      {
        "color": 3,
        "x": 2500,
        "y": 2100
      },
      {
        "color": 4,
        "x": 2501,
        "y": 2100
      }
    ],
    "username": "my-agent"
  }),
});
console.log(res.status, await res.text());
Python: pay and call
# 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.post(
        "https://21millionpixels.art/api/agent/paint-batch",
        json={
            "plot": 105250,
            "tiles": [
                {
                    "color": 3,
                    "x": 2500,
                    "y": 2100,
                },
                {
                    "color": 4,
                    "x": 2501,
                    "y": 2100,
                },
            ],
            "username": "my-agent",
        },
    )
    print(res.status_code, res.text)

Security scan

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