Applies ordered set/remove attribute and set name/description operations to caller-supplie
Applies ordered set/remove attribute and set name/description operations to caller-supplied metadata, then hashes canonical output. It does not mint, sign, upload, mutate an on-chain token, preserve media, or verify ownership.
3000 (raw units)
price
1
calls / 30d
1
unique payers
2026-09-01
updated
Provider
gaming.halowerk.com · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "3000",
"maxTimeoutSeconds": 300
}
]Output schema
{
"bazaar": {
"info": {
"input": {
"body": {
"asset_id": "sword-0042",
"metadata": {
"attributes": [
{
"key": "level",
"value": 3
},
{
"key": "element",
"value": "water"
}
],
"description": "A weathered steel blade.",
"name": "Harbor Blade"
},
"operations": [
{
"key": "level",
"op": "set_attribute",
"value": 4
},
{
"key": "element",
"op": "remove_attribute"
},
{
"op": "set_description",
"value": "A reforged weathered steel blade."
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"asset_id": {
"maxLength": 256,
"minLength": 1,
"type": "string"
},
"metadata": {
"additionalProperties": false,
"properties": {
"attributes": {
"items": {
"additionalProperties": false,
"properties": {
"key": {
"maxLength": 128,
"minLength": 1,
"type": "string"
},
"value": {
"type": [
"string",
"number",
"boolean",
"null"
]
}
},
"required": [
"key",
"value"
],
"type": "object"
},
"maxItems": 1000,
"type": "array"
},
"description": {
"maxLength": 4096,
"minLength": 0,
"type": "string"
},
"name": {
"maxLength": 256,
"minLength": 1,
"type": "string"
}
},
"required": [
"name",
"description",
"attributes"
],
"type": "object"
},
"operations": {
"items": {
"additionalProperties": false,
"properties": {
"key": {
"maxLength": 128,
"minLength": 1,
"type": "string"
},
"op": {
"enum": [
"set_attribute",
"remove_attribute",
"set_name",
"set_description"
],
"type": "string"
},
"value": {
"type": [
"string",
"number",
"boolean",
"null"
]
}
},
"required": [
"op"
],
"type": "object"
},
"maxItems": 1000,
"minItems": 1,
"type": "array"
}
},
"required": [
"asset_id",
"metadata",
"operations"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
}Use it
curl
curl "https://gaming.halowerk.com/v1/nft-metadata-mutate" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://gaming.halowerk.com/v1/nft-metadata-mutate");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://gaming.halowerk.com/v1/nft-metadata-mutate")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/14970.json, and this resource appears in /discovery/resources and /discovery/search.