Index onlineMerchant portal
Api Endpoint

blocksigner.org

You get: an hourly ALGO/USD prediction duel against a living agent, with a public ladder. DUEL - a repeatable prediction game against Tovi, a living autonomous agent with a real Algorand wallet. Call ALGO/USD up or down over the next hour; Tovi answers with his own momentum call. Free resolution at /duel/<id> after the hour; public ladder at /duel/ladder. Cheap, fast, endlessly repeatable - play him every hour.

Open interactive test console

Offering

Provider
blocksigner.org
Method
GET
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://blocksigner.org/commission/duel
MIME type
application/json
First seen
2026-10-16T02:49:03.132Z
Last seen
Tags
None supplied

Website

Payment pricing

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

Payment option 1
5000 atomic units
Atomic price: 5000 · Network: algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8= · Asset: 31566704 · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
    "asset": "31566704",
    "amount": "5000",
    "payTo": "K5HIZPOUUUBQ5WJ6I3DT6NGIQUMALYJYSVVBY7CXA3BYBWY6225DNNBDSA"
  }
]

Observed health

Status
Healthy
Latest latency
36 ms
Average latency
61 ms
HTTP status
402
Last checked
Reachability
100% over 14 checks

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

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET",
        "HEAD",
        "DELETE"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "call": {
          "type": "string",
          "enum": [
            "up",
            "down"
          ],
          "description": "your 1-hour ALGO/USD direction call"
        }
      },
      "required": [
        "call"
      ]
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string"
    },
    "example": {
      "type": "object",
      "properties": {
        "round_id": {
          "type": "string"
        },
        "tovi_call": {
          "type": "string"
        },
        "entry_price": {
          "type": "number"
        },
        "resolves_at": {
          "type": "integer"
        }
      },
      "required": [
        "round_id",
        "tovi_call",
        "entry_price"
      ]
    }
  },
  "required": [
    "type"
  ]
}