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BaseWhale Oracle x402
x402
BaseWhale Oracle x402 is a paid API for AI agents from basewhale-x402.vercel.app, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-18).
Returns real-time on-chain whale transactions and large transfers on Base Mainnet (Chain ID 8453), filtered by minimum USD value
Price / call$0.02
Success—
StatusUnknown
How this service works
Real-Time On-Chain Whale & Large Transfer Oracle for Base Mainnet (Chain ID 8453), payable via x402.
Output
Returns a JSON object containing the network name (Base), a timestamp, the count of whale transactions found, an array of individual whale transactions, and the total USD volume of all whale transactions in the result set.
Example use cases
DeFi trader monitoring whale moves
“Pull the latest 20 whale transactions on Base mainnet with a minimum transfer size of $100,000 so I can see where the big money is moving before I make my trade.”
On-chain alert bot for large transfers
“Give me all whale transactions on Base right now above $75,000 — I want to know the count and total volume so I can decide if there's unusual activity today.”
Crypto analyst researching Base liquidity
“Fetch the top 15 large on-chain transfers happening on Base mainnet above $25,000 and tell me the total whale volume so I can include it in my market report.”
Technical details
Endpoint
GEThttps://basewhale-x402.vercel.app/v1/whalesWhen to prefer
Choose this endpoint when you need real-time, on-chain large-transfer data specifically for Base Mainnet (Chain ID 8453). It is ideal for DeFi agents, trading bots, and market monitoring systems that need to detect whale activity programmatically with a low per-call cost of $0.02 USDC. Prefer this over general blockchain explorers when you need structured, filterable whale data via a simple API rather than raw block data.
Side effects
- Payment not provided or invalid x402 payment header — returns 402 Payment Required
- Invalid input parameters (e.g. non-integer limit) — returns 400 Bad Request
- No whale transactions found meeting the minimum USD threshold — returns empty transactions array with whale_count of 0
- Upstream Base node unavailability causing stale or missing data
- Rate limiting if payment is not processed correctly
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| network | string | |
| timestamp | string | |
| whale_count | integer | |
| transactions | array | |
| total_whale_volume_usd | number |
Tags
x402
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