Index onlineMerchant portal
Api Endpoint

x402Pulse

Polymarket whale trades: the largest recent buys and sells across all markets above a size you choose, with trader name, outcome, price and USD size. 5- and 15-minute crypto markets filtered out. Pair with /v1/wallet to check whether a whale is any good.

Open interactive test console

Offering

Provider
www.x402pulse.dev
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Prediction Markets
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://www.x402pulse.dev/v1/whales
MIME type
application/json
First seen
2026-10-16T01:50:19.913Z
Last seen
Tags
prediction-markets, polymarket, Trading, analytics, x402pulse

Website

Payment pricing

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

Payment option 1
0.0028 USDC
Atomic price: 2800 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
0.0028 USDC
Atomic price: 2800 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "2800",
    "payTo": "0x5e901f973C17E5542b4Da2A64C7fDc736B2A6e74"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "2800",
    "payTo": "7xicmqu8zQiLK3SF57oetANRWd9Y69wNhFK7XZBQ6kQ8"
  }
]

Observed health

Status
Healthy
Latest latency
114 ms
Average latency
248 ms
HTTP status
402
Last checked
Reachability
100% over 15 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"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "min": {
          "type": "string",
          "description": "Minimum trade size in USD"
        },
        "limit": {
          "type": "string",
          "description": "Number of trades, 1 to 50"
        }
      },
      "required": []
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET"
          ],
          "type": "string"
        },
        "queryParams": {
          "properties": {
            "limit": {
              "description": "Number of trades, 1 to 50",
              "type": "string"
            },
            "min": {
              "description": "Minimum trade size in USD",
              "type": "string"
            }
          },
          "required": [],
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}