Resolves Ethereum addresses to entity labels, name tags and categories from a database of about 412,000 labeled addresses, and returns large ETH transfers with labeled counterparties. Paid per call in USDC on Base.
Pay from $0.01 to $0.02 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.
ASSESSMENT
updated 5h agoEvidence-backed signals, not a single score. Click any chip for the proof. Measured values stay read-only; unknown is honest.
reliability 100%
- uptime 24h
- 100%
- uptime 7d
- 100%
- uptime 30d
- 100%
- uptime 90d
- 100%
- response p95
- 711ms
- avg response
- 515ms
- total checks
- 47
compliance A (11/11)
11 of 11 x402 conformance checks pass. Full checklist below.
price $0.01 to $0.02 (p67 in Blockchain)
- price (min)
- $0.01
- price (max)
- $0.02
- category percentile (min)
- p67 in Blockchain
- category percentile (max)
- p60 in Blockchain
- endpoints / prices
- 2 / 2
- model
- tiered
- stability
- 100%
risk clean
No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.
traction $8.76 30d · 49 buyers
- volume 30d
- $8.76
- buyers 30d
- 49
- settlements 30d
- 538
- last settlement
- 2026-07-21
- top buyer share
- 32% of 30d volume
- trend 7d vs 30d
- 0.62x the 30d daily rate
- networks
- eip155:8453
Attributed pro-quota: this payout address is shared, so volume and buyers are the operator-level figure divided by the services sharing it. A declared convention, not an individually observed measure, and still a conservative undercount.
Top buyer share is a concentration signal, not part of the ranking score.
WHAT IT DOES
ai-derivedProvides blockchain whale transaction lookup and movement tracking
- category
- blockchain-analytics
- in
- query params
- auth
- api key
AI-generated summary. The measured data is never altered by it.
ENDPOINTS
| METHOD | PATH | DESCRIPTION | PRICE | NETWORK | ASSET |
|---|---|---|---|---|---|
| GET | /whale/lookup | $0.01 | Base | USDC | |
| GET | /whale/movements | $0.02 | Base | USDC |
REQUEST / RESPONSE EXAMPLE
An unpaid request to GET /whale/lookup returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.
curl -i 'https://whale.hugen.tokyo/whale/lookup'
// 402 response (captured by monitor) · 2 payloads · click to expand
[
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x29322Ea7EcB34aA6164cb2ddeB9CE650902E4f60",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://whale.hugen.tokyo/whale/lookup",
"mimeType": "application/json",
"description": "Look up any Ethereum address — returns entity labels, name tags, and categories from 412K+ labeled addresses. AI agent API for on-chain identity resolution"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"address": "0x28c6c06298d514db089934071355e5743bf21d60"
}
},
"output": {
"type": "json",
"example": {
"labels": [
{
"label": "Binance",
"name_tag": "Binance 14"
}
],
"label_count": 1
}
}
},
"tags": [
"whale",
"ethereum",
"labels",
"identity"
],
"schema": {
"properties": {
"input": {
"required": [
"method"
]
}
}
},
"category": "blockchain-analytics",
"discoverable": true
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x29322Ea7EcB34aA6164cb2ddeB9CE650902E4f60",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://whale.hugen.tokyo/whale/movements",
"mimeType": "application/json",
"description": "Recent large ETH transfers with sender/receiver labels and entity classification. AI agent API for whale movement detection and flow analysis"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"hours": "24",
"min_eth": "100"
}
},
"output": {
"type": "json",
"example": {
"count": 1,
"movements": [
{
"to": {
"label": "Unknown"
},
"from": {
"label": "Binance"
},
"value_eth": 10000
}
]
}
}
},
"tags": [
"whale",
"ethereum",
"transfers",
"smart-money"
],
"schema": {
"properties": {
"input": {
"required": [
"method"
]
}
}
},
"category": "blockchain-analytics",
"discoverable": true
}
},
"x402Version": 2
}
] UPTIME
RECENT CHECKS
OVER TIME
All charts share the 7d window selected here. Every series is also served as JSON at /api/v1/services/whale-intelligence-api/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted).
Median across 2 endpoints. Use the selector to isolate one.
Shared payout address (9 other services). These bars are the full shared address (operator-level), so do not sum them across the services that share it. Where a per-service figure is attributed, the assessment block and the ranking, it is the address total divided pro-quota by the 10 services sharing it: a declared convention, not an individually observed measure.
Shared payout address (9 other services). These bars are the full shared address (operator-level), so do not sum them across the services that share it. Where a per-service buyer count is attributed, the assessment block and the ranking, it is divided pro-quota by the 10 services sharing the address and can be fractional: a declared convention, not an individually observed measure.
COMPLIANCE
11/11 checks pass · grade A- 402 payload captured
- accepts[] array present
- payTo address recoverable
- payTo at accepts[0].payTo (conformant shape)
- payTo is a valid on-chain address
- atomic price declared
- atomic price in a sane range
- asset (token) address declared
- network resolves to CAIP-2
- payment scheme declared
- served over HTTPS
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