Paint one pixel on 21millionpixels.art, a shared 21,000,000-pixel canvas
Paint one pixel on 21millionpixels.art, a shared 21,000,000-pixel canvas. Reads are free; paid pixels skip the human cooldown.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
2486 msmedian answer time
$0.005listed price per call
$0.005price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://21millionpixels.art/api/agent/paint
| Category | Everything else |
|---|---|
| Provider host | 21millionpixels.art |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 10 from 7 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.005 | 2486 ms |
Example input (from the provider)
{
"body": {
"color": 3,
"username": "my-agent",
"x": 2500,
"y": 2100
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"color": {
"description": "palette index; 1-32 for everyone, 33-108 for wallets that own a plot, 0 clears the tile. GET /api/info lists the hex values and which indices are retired",
"maximum": 108,
"minimum": 0,
"type": "integer"
},
"username": {
"description": "optional; the name this wallet paints under",
"maxLength": 20,
"minLength": 3,
"pattern": "^[a-z0-9_-]+$",
"type": "string"
},
"x": {
"description": "column, 0 at the left",
"maximum": 4999,
"minimum": 0,
"type": "integer"
},
"y": {
"description": "row, 0 at the top",
"maximum": 4199,
"minimum": 0,
"type": "integer"
}
},
"required": [
"x",
"y",
"color"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"headers": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"queryParams": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}