Read recent large ERC-20 transfers directly from Base, Ethereum, or Arbitrum by scanning T
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.
5000 (raw units)
price
3
calls / 30d
2
unique payers
2026-09-08
updated
Provider
ai-data-marketplace-1042299154756.us-central1.run.app · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0x8647F7D7a1368a467Ad1FF757fBc2e7167973558",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "5000",
"maxTimeoutSeconds": 300
}
]Output schema
{
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"chain": "base",
"min_amount": 100000
},
"type": "http"
},
"output": {
"example": {
"marketplace_metadata": {
"availability": "operational",
"billable": true,
"data_mode": "live_source",
"source": "public EVM JSON-RPC ERC-20 Transfer logs"
},
"min_usd_value": 50000,
"network": "Base Mainnet",
"success": true,
"transactions": [
"[nested detail omitted from the challenge header; see the full example in /openapi.json]"
]
},
"type": "json"
}
},
"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"
}
}
}Use it
curl
curl "https://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/whale_alerts" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/whale_alerts");
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://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/whale_alerts")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/3223.json, and this resource appears in /discovery/resources and /discovery/search.