Index onlineMerchant portal
Api Endpoint

Large ERC-20 Transfer Feed

Read recent large ERC-20 transfers directly from Base, Ethereum, or Arbitrum by scanning Transfer logs over the most recent blocks and filtering by a minimum token amount. Defaults to USDC on Base. Public RPC providers cap the scan window, so this covers the most recent blocks rather than a long history, and it does not label exchange wallets.

Open interactive test console

Offering

Provider
ai-data-marketplace-1042299154756.us-central1.run.app
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://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/whale_alerts
MIME type
application/json
First seen
2026-10-16T01:50:19.913Z
Last seen
Tags
Whales, Transfers, alpha, Crypto, on-chain

Website

Payment pricing

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

Payment option 1
0.005 USDC
Atomic price: 5000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "5000",
    "payTo": "0x8647F7D7a1368a467Ad1FF757fBc2e7167973558"
  }
]

Observed health

Status
Healthy
Latest latency
55 ms
Average latency
135 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"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "chain": {
          "type": "string",
          "description": "base, ethereum, or arbitrum. Defaults to base."
        },
        "token": {
          "type": "string",
          "description": "ERC-20 contract address to scan. Defaults to USDC on the selected chain."
        },
        "min_amount": {
          "type": "integer",
          "description": "Minimum transfer size in whole tokens. Defaults to 100000."
        },
        "blocks": {
          "type": "integer",
          "description": "How many recent blocks to scan, 1 to 10. Public RPC providers cap this window."
        },
        "limit": {
          "type": "integer",
          "description": "Maximum transfers to return, 1 to 100. Defaults to 25."
        }
      },
      "additionalProperties": true
    }
  },
  "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": {
          "additionalProperties": true,
          "properties": {
            "blocks": {
              "description": "How many recent blocks to scan, 1 to 10. Public RPC providers cap this window.",
              "type": "integer"
            },
            "chain": {
              "description": "base, ethereum, or arbitrum. Defaults to base.",
              "type": "string"
            },
            "limit": {
              "description": "Maximum transfers to return, 1 to 100. Defaults to 25.",
              "type": "integer"
            },
            "min_amount": {
              "description": "Minimum transfer size in whole tokens. Defaults to 100000.",
              "type": "integer"
            },
            "token": {
              "description": "ERC-20 contract address to scan. Defaults to USDC on the selected chain.",
              "type": "string"
            }
          },
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "additionalProperties": true,
          "properties": {
            "marketplace_metadata": {
              "additionalProperties": true,
              "properties": {
                "availability": {
                  "type": "string"
                },
                "billable": {
                  "type": "boolean"
                },
                "data_mode": {
                  "type": "string"
                },
                "source": {
                  "type": "string"
                }
              },
              "required": [
                "data_mode",
                "billable",
                "availability",
                "source"
              ],
              "type": "object"
            },
            "min_usd_value": {
              "type": "integer"
            },
            "network": {
              "type": "string"
            },
            "success": {
              "type": "boolean"
            },
            "transactions": {
              "items": {
                "type": "string"
              },
              "type": "array"
            }
          },
          "required": [
            "success",
            "network",
            "min_usd_value",
            "transactions",
            "marketplace_metadata"
          ],
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}