mirrored listing x402 eip155:8453

Canonicalizes firmware hash, version, device model and minimum bootloader version, then pr

Canonicalizes firmware hash, version, device model and minimum bootloader version, then produces a SHA-256 manifest digest and HMAC-SHA256 release tag using caller-supplied ephemeral key material. This is a symmetric integrity tag, not a vendor PKI signature or code-signing service.

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Claim this listing
3000 (raw units)
price
2
calls / 30d
2
unique payers
2026-09-14
updated

Provider

iot.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": {
          "device_model": "edge-node-x2",
          "ephemeral_release_key": "example-release-key-2026",
          "firmware_sha256": "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
          "minimum_bootloader": "2.0.0",
          "version": "4.2.1"
        },
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "body": {
              "additionalProperties": false,
              "properties": {
                "device_model": {
                  "maxLength": 128,
                  "minLength": 1,
                  "type": "string"
                },
                "ephemeral_release_key": {
                  "description": "Ephemeral example key; do not submit a long-lived production signing key.",
                  "maxLength": 512,
                  "minLength": 16,
                  "type": "string"
                },
                "firmware_sha256": {
                  "pattern": "^[0-9a-fA-F]{64}$",
                  "type": "string"
                },
                "minimum_bootloader": {
                  "maxLength": 64,
                  "minLength": 1,
                  "type": "string"
                },
                "version": {
                  "maxLength": 64,
                  "minLength": 1,
                  "type": "string"
                }
              },
              "required": [
                "firmware_sha256",
                "version",
                "device_model",
                "minimum_bootloader",
                "ephemeral_release_key"
              ],
              "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://iot.halowerk.com/v1/ota-sign"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://iot.halowerk.com/v1/ota-sign");
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://iot.halowerk.com/v1/ota-sign")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Machine-readable

Everything on this page is also available as clean JSON at /resources/15221.json, and this resource appears in /discovery/resources and /discovery/search.