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Moltalyzer Polymarket Whale Tracker
x402
Moltalyzer Polymarket Whale Tracker is a paid API for AI agents from api.moltalyzer.xyz, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-13).
Returns a list of Polymarket whale wallets with their trading performance metrics including fade ROI, win rate, and resolved market count
Price / call$0.05
Success—
StatusUnknown
How this service works
Paid ($0.05 USDC via x402). Whale calibration table: per-wallet hold-to-resolution win rates by odds band, mirror/fade ROI, and follow/fade labels (min 30 resolved entries). The data behind the whale_entry annotations in the signal feed; the free proof is GET /v1/track-record. Settle-early with a guaranteed refund — if we charge you but cannot deliver, the payment is refunded.
Output
A JSON array of whale wallet objects, each with a pseudonym label (e.g. 'Domer'), a 'fade' or other label, fadeRoi (e.g. 0.213), winRate (e.g. 0.178), and the number of resolved markets they've participated in. Returned under data.wallets with a success boolean.
Example use cases
Example prompt
“Pull up the current Polymarket whale wallets from Moltalyzer — I want to see which ones have the best win rates and fade ROI so I can decide who to follow or fade.”
Technical details
Endpoint
GEThttps://api.moltalyzer.xyz/api/polymarket/whalesWhen to prefer
Use this endpoint when you need to identify and evaluate high-volume or high-accuracy Polymarket traders (whales) for copy-trading signals, fade strategies, or market sentiment analysis. Prefer this over generic Polymarket market endpoints when the goal is trader-level intelligence rather than market-level price data.
Side effects
- Missing or invalid API key returns 401 unauthorized
- Daily call limit exceeded (2 free calls/day) returns 429 rate limit error
- Payment of $0.05 USDC not fulfilled returns 402 Payment Required
- Empty wallet list if no whales detected in current window
- Malformed response if upstream Polymarket data is unavailable
Input
{
"properties": "win_rate,fade_roi,resolved_market_count"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
{
"data": {
"wallets": [
{
"bands": {
"mid": {
"n": 81,
"wins": 20,
"winRate": 0.24691358024691357
},
"favorite": {
"n": 66,
"wins": 49,
"winRate": 0.7424242424242424
},
"longshot": {
"n": 265,
"wins": 6,
"winRate": 0.022641509433962263
}
},
"label": "fade",
"wallet": "0x9d84ce0306f8551e02efef1680475fc0f1dc1344",
"fadeRoi": 0.20757775272559956,
"signals": 866,
"winRate": 0.1820388349514563,
"resolved": 412,
"pseudonym": null,
"avgEntryOdds": 0.21399869959269185,
"costBasisUsd": 1443988,
"lastSignalAt": "2026-06-14T23:37:55.000Z",
"holdToResolutionRoi": -0.719077562709569
},
{
"bands": {
"mid": {
"n": 5,
"wins": 0,
"winRate": 0
},
"favorite": {
"n": 33,
"wins": 31,
"winRate": 0.9393939393939394
},
"longshot": {
"n": 2,
"wins": 0,
"winRate": 0
}
},
"label": "fade",
"wallet": "0x94f199fb7789f1aef7fff6b758d6b375100f4c7a",
"fadeRoi": 1.6679395901788798,
"signals": 40,
"winRate": 0.775,
"resolved": 40,
"pseudonym": null,
"avgEntryOdds": 0.8222381509099014,
"costBasisUsd": 1193994,
"lastSignalAt": "2026-04-07T07:04:09.000Z",
"holdToResolutionRoi": -0.9697007783161732
},
{
"bands": {
"mid": {
"n": 2,
"wins": 2,
"winRate": 1
},
"favorite": {
"n": 12,
"wins": 7,
"winRate": 0.5833333333333334
},
"longshot": {
"n": 0,
"wins": 0,
"winRate": null
}
},
"label": "insufficient_data",
"wallet": "0xd0c042c08f755ff940249f62745e82d356345565",
"fadeRoi": -0.9885276953997907,
"signals": 16,
"winRate": 0.6428571428571429,
"resolved": 14,
"pseudonym": null,
"avgEntryOdds": 0.7032142851569348,
"costBasisUsd": 5270,
"lastSignalAt": "2026-04-02T04:05:35.000Z",
"holdToResolutionRoi": 1.78413334697498
},
{
"bands": {
"mid": {
"n": 4,
"wins": 1,
"winRate": 0.25
},
"favorite": {
"n": 6,
"wins": 4,
"winRate": 0.6666666666666666
},
"longshot": {
"n": 2,
"wins": 1,
"winRate": 0.5
}
},
"label": "insufficient_data",
"wallet": "0x1d9af60c679cd0b577c3c4ccb4b1a4be4174426d",
"fadeRoi": -0.8380101750045832,
"signals": 23,
"winRate": 0.5,
"resolved": 12,
"pseudonym": null,
"avgEntryOdds": 0.5533666666666666,
"costBasisUsd": 2350,
"lastSignalAt": "2026-06-01T19:49:15.732Z",
"holdToResolutionRoi": 1.1979171120941658
},
{
"bands": {
"mid": {
"n": 4,
"wins": 0,
"winRate": 0
},
"favorite": {
"n": 0,
"wins": 0,
"winRate": null
},
"longshot": {
"n": 3,
"wins": 0,
"winRate": 0
}
},
"label": "insufficient_data",
"wallet": "0x1f2dd6d473f3e824cd2f8a89d9c69fb96f6ad0cf",
"fadeRoi": 0.2614182548339026,
"signals": 7,
"winRate": 0,
"resolved": 7,
"pseudonym": null,
"avgEntryOdds": 0.16285714285714287,
"costBasisUsd": 64,
"lastSignalAt": "2026-04-08T15:26:01.000Z",
"holdToResolutionRoi": -1
}
],
"computedAt": "2026-06-16T17:40:12.434Z",
"methodology": "Per-wallet performance of tracked whale position ENTRIES evaluated hold-to-resolution. Exits are not tracked: a whale may profitably exit early while the entry scores as a loss here. ROI is P&L per dollar of cost basis (shares x entry price). fadeRoi assumes equal cost on the opposite side at (1 - entry price). Labels require >= 30 resolved entries. Not financial advice.",
"resolvedSignalsTotal": 485
},
"_meta": {
"docs": "https://api.moltalyzer.xyz/openapi.json",
"changelog": "https://api.moltalyzer.xyz/api/changelog",
"discovery": "https://api.moltalyzer.xyz/discovery",
"endpoints": {
"pulse": {
"url": "/api/pulse/ai-business/digest/latest",
"free": true,
"description": "Cross-source narrative intelligence (4hr)"
},
"github": {
"url": "/api/github/digests/latest",
"free": true,
"description": "Developer trend tracking (daily)"
},
"tokens": {
"url": "/api/tokens/index",
"free": true,
"status": "offline",
"description": "On-chain token intelligence — TEMPORARILY OFFLINE (scoring migrating to self-hosted inference; paid endpoints return 503)"
},
"advisor": {
"url": "/api/moltbook/advisor",
"price": "$0.05",
"description": "AI-powered market advisor"
},
"moltbook": {
"url": "/api/moltbook/digests/latest",
"free": true,
"description": "AI agent community digest (hourly)"
},
"polymarket": {
"url": "/api/polymarket/signal",
"price": "$0.01",
"description": "Polymarket intelligence (x402 paid per call): /signal $0.01 (one feed item — mover | whale entry w/ hold-to-resolution calibration | predetermined), /signals $0.03 (batch, poll with ?since=), /whales $0.05, /resolving $0.02 (markets resolving soon + order-book microstructure), /digest $0.10, /research $1.00. Free preview: /sample, /latest, /index."
},
"intelligence": {
"url": "/api/intelligence/latest",
"free": true,
"description": "Master cross-source synthesis (4hr cadence)"
}
},
"apiVersion": "4.2.2"
},
"success": true,
"methodology": "Per-wallet performance of tracked whale position ENTRIES evaluated hold-to-resolution. Exits are not tracked: a whale may profitably exit early while the entry scores as a loss here. ROI is P&L per dollar of cost basis (shares x entry price). fadeRoi assumes equal cost on the opposite side at (1 - entry price). Labels require >= 30 resolved entries. Not financial advice.",
"_attribution": "via Moltalyzer API (https://api.moltalyzer.xyz)"
}Tags
x402
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