Saylor Innovations Agent Bazaar by Saylor Innovations
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mirrored listing x402 eip155:8453

Computes free-space loss at one metre, applies a caller-supplied path-loss exponent over d

Computes free-space loss at one metre, applies a caller-supplied path-loss exponent over distance, then reports estimated receive power and margin against receiver sensitivity. This planning estimate does not model terrain, Fresnel obstruction, interference, antenna mismatch or regulatory duty cycle.

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3000 (raw units)
price
1
calls / 30d
1
unique payers
2026-09-01
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": {
          "distance_km": 2.5,
          "frequency_mhz": 868,
          "miscellaneous_loss_db": 3,
          "path_loss_exponent": 2.7,
          "receiver_sensitivity_dbm": -137,
          "rx_antenna_gain_dbi": 2,
          "tx_antenna_gain_dbi": 2,
          "tx_power_dbm": 14
        },
        "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": {
                "distance_km": {
                  "maximum": 10000,
                  "minimum": 0.001,
                  "type": "number"
                },
                "frequency_mhz": {
                  "maximum": 10000,
                  "minimum": 100,
                  "type": "number"
                },
                "miscellaneous_loss_db": {
                  "maximum": 200,
                  "minimum": 0,
                  "type": "number"
                },
                "path_loss_exponent": {
                  "maximum": 8,
                  "minimum": 1,
                  "type": "number"
                },
                "receiver_sensitivity_dbm": {
                  "maximum": 0,
                  "minimum": -200,
                  "type": "number"
                },
                "rx_antenna_gain_dbi": {
                  "maximum": 100,
                  "minimum": -50,
                  "type": "number"
                },
                "tx_antenna_gain_dbi": {
                  "maximum": 100,
                  "minimum": -50,
                  "type": "number"
                },
                "tx_power_dbm": {
                  "maximum": 100,
                  "minimum": -100,
                  "type": "number"
                }
              },
              "required": [
                "frequency_mhz",
                "distance_km",
                "tx_power_dbm",
                "tx_antenna_gain_dbi",
                "rx_antenna_gain_dbi",
                "receiver_sensitivity_dbm",
                "path_loss_exponent"
              ],
              "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/lora-coverage"
# -> 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/lora-coverage");
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/lora-coverage")
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/15223.json, and this resource appears in /discovery/resources and /discovery/search.