Api Endpoint

nostr.halowerk.com

Collects kind 9735 zap receipts addressed to one public key over up to twelve relays, merges them by event id and reports who sent how much over the requested window. Every amount comes from decoding the BOLT-11 invoice carried in the receipt, not from the amount tag of the zap request, because the two can disagree and only the invoice was payable.

Open interactive test console

Offering

Provider: nostr.halowerk.com
Method: POST
Offering type: Api Endpoint
Transport type: http
Category: Blockchain And Crypto
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://nostr.halowerk.com/zap-radar
MIME type: Not provided
First seen: 2026-10-16T01:58:26.121Z
Last seen: 2026-11-01T15:25:33.290Z
Tags: None supplied

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1: 0.004 USDC
Atomic price: 4000 · Network: eip155:8453 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "4000",
    "payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E"
  }
]

Observed health

Status: Healthy
Latest latency: 323 ms
Average latency: 558 ms
HTTP status: 204
Last checked: 2026-11-03T12:19:09.907Z
Reachability: 100% over 10 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "additionalProperties": false,
  "properties": {
    "body": {
      "additionalProperties": false,
      "properties": {
        "days": {
          "default": 30,
          "description": "Length of the window in days, counted back from now.",
          "maximum": 365,
          "minimum": 1,
          "type": "integer"
        },
        "max_receipts": {
          "default": 200,
          "description": "Upper bound on receipts fetched per relay. Reaching it sets truncated.",
          "maximum": 400,
          "minimum": 10,
          "type": "integer"
        },
        "pubkey": {
          "description": "Recipient public key as 64 hex characters, npub or nprofile.",
          "type": "string"
        },
        "relays": {
          "description": "wss relay addresses. Left empty, ten measured default relays are used.",
          "items": {
            "type": "string"
          },
          "maxItems": 12,
          "type": "array"
        },
        "top_senders": {
          "default": 10,
          "description": "How many senders the ranking lists.",
          "maximum": 50,
          "minimum": 1,
          "type": "integer"
        }
      },
      "required": [
        "pubkey"
      ],
      "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"
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "body": {
          "additionalProperties": false,
          "properties": {
            "days": {
              "default": 30,
              "description": "Length of the window in days, counted back from now.",
              "maximum": 365,
              "minimum": 1,
              "type": "integer"
            },
            "max_receipts": {
              "default": 200,
              "description": "Upper bound on receipts fetched per relay. Reaching it sets truncated.",
              "maximum": 400,
              "minimum": 10,
              "type": "integer"
            },
            "pubkey": {
              "description": "Recipient public key as 64 hex characters, npub or nprofile.",
              "type": "string"
            },
            "relays": {
              "description": "wss relay addresses. Left empty, ten measured default relays are used.",
              "items": {
                "type": "string"
              },
              "maxItems": 12,
              "type": "array"
            },
            "top_senders": {
              "default": 10,
              "description": "How many senders the ranking lists.",
              "maximum": 50,
              "minimum": 1,
              "type": "integer"
            }
          },
          "required": [
            "pubkey"
          ],
          "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"
}