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Predge Polymarket Whale On-Chain Activity
x402
Predge Polymarket Whale On-Chain Activity is a paid API for AI agents from api.predge.io, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).
Fetches attested on-chain Polymarket prediction-market trades for a specific wallet address, returning signed trade records with market context.
Price / call$0.02
Success—
StatusUnknown
How this service works
Real-time alerts on whale traders on Polymarket. Heuristic Insider Watch, wallet scoring 0–100, Bloomberg-style web terminal. Free plan included.
Output
Returns a JSON object containing a list of attested Polymarket trades for the specified wallet, each including transaction hash, block timestamp, market title, condition ID, trade side (yes/no), price (0–1), size in USD, and a cryptographic ed25519 attestation signature verifying the on-chain data. Also includes total count, chain (polygon), and platform (polymarket).
Example use cases
Track whale bets before major event
“Show me the last 20 on-chain Polymarket trades for wallet 0x8dab6cf42d7e4d1cd6cca897b9e12a8cbe6d69e8 — I want to know which markets they're positioning in and whether they're buying YES or NO.”
Verify insider-like activity on a market
“I've heard there's a whale that made big moves on the Fed rate cut market — can you pull up all available Polymarket trades for 0x178a746e2b342c25b1d78d0f0d0ea77157c9b6d40b2e97ffbf827cd7f9994c39 and show me the trade sizes and prices?”
Research portfolio of a high-scoring wallet
“I found a wallet with a high Predge score — look up on-chain Polymarket activity for 0x3fca8821d4e5a8c9b7f2d1e6c0b4a9d3e7f1c5b2 and give me up to 50 of their recent prediction-market trades so I can see their strategy.”
Technical details
Endpoint
GEThttps://api.predge.io/v1/onchain/pm-activity/%7Bwallet%7DWhen to prefer
Use this endpoint when you need cryptographically attested, on-chain Polymarket trade records for a specific wallet — particularly when you want to verify whale trading patterns, track insider-like behavior, or analyze a wallet's prediction-market positions with signed provenance. Prefer this over generic blockchain explorers when you need Polymarket-specific trade context (market title, condition ID, YES/NO side) rather than raw token transfers.
Side effects
- Wallet address not found or has no Polymarket activity — returns empty trades array
- Invalid wallet address format — likely returns 400 or empty result
- limit parameter out of range (below 1 or above 50) — may return validation error
- Payment failure (x402) — request rejected if USDC micropayment not provided
- Polygon RPC or indexer outage — may return 503 or stale data
- Wallet has only general crypto flows (not PM trades) — returns empty or filtered-out results per scope
Output
Schema · Response
{
"type": "json",
"example": {
"chain": "polygon",
"count": 1,
"scope": "polymarket-whale on-chain activity (prediction-market trades only, not general crypto flows)",
"trades": [
{
"tx_hash": "0x6a7de5…",
"block_time": "2026-07-17T09:41:02.000Z",
"attestation": {
"kind": "onchain-activity",
"payload": {
"kind": "onchain-activity",
"side": "yes",
"chain": "polygon",
"price": "0.6200",
"wallet": "0x8dab6cf42d7e4d1cd6cca897b9e12a8cbe6d69e8",
"tx_hash": "0x6a7de5…",
"platform": "polymarket",
"size_usd": "25400.00",
"issued_at": "2026-08-02T10:00:00.000Z",
"block_time": "2026-07-17T09:41:02.000Z",
"condition_id": "0x178a746e2b342c25b1d78d0f0d0ea77157c9b6d40b2e97ffbf827cd7f9994c39"
},
"algorithm": "ed25519",
"canonical": "{…keys sorted, no whitespace…}",
"signature": "3a1f…64-byte-hex…9c",
"public_key": "d75a9807...c7e2a1"
},
"condition_id": "0x178a746e2b342c25b1d78d0f0d0ea77157c9b6d40b2e97ffbf827cd7f9994c39",
"market_title": "Will the Fed cut rates in September?"
}
],
"wallet": "0x8dab6cf42d7e4d1cd6cca897b9e12a8cbe6d69e8",
"platform": "polymarket"
}
}Tags
x402
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