Predge · On-Chain Intel

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x9084f5000e07c7133d6da5ee4f271ab6d1821144",
    "amount": "20000",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://api.predge.io/v1/onchain/pm-activity/:wallet",
    "description": "Recent ON-CHAIN Polymarket trades of one wallet (path param: 0x… proxy-wallet address), EACH wrapped in its own ed25519-SIGNED attestation (kind \"onchain-activity\"). Honest scope: Polymarket-whale on-chain activity — real Polygon transactions of prediction-market wallets — NOT general ERC-20/DEX crypto intel. Every attested row has a real tx_hash (Kalshi's anonymous prints have no on-chain identity and are excluded by construction). Signed facts per trade: tx_hash + block_time (no block number is stored, none is claimed — derive it from the tx receipt), wallet, condition_id, side, price; size_usd is included but labeled a MODELED USD notional in data_basis. Attestations are minted ONCE per tx_hash and reused (byte-stable signature per transaction), and verify FREE offline at GET /verify against the same published key as every Predge envelope. 15 min delay. Query param: limit (1-50, default 20). 404 (not charged) for a wallet with no on-chain Polymarket trades in the Predge dataset.",
    "maxAmountRequired": "20000",
    "maxTimeoutSeconds": 60
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {},
    "payTo": "9dxMRRtC7RKZH5rFZpUywjmnQ87H9qHhtW43u5LYmpV",
    "amount": "20000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "mimeType": "application/json",
    "resource": "https://api.predge.io/v1/onchain/pm-activity/:wallet",
    "description": "Recent ON-CHAIN Polymarket trades of one wallet (path param: 0x… proxy-wallet address), EACH wrapped in its own ed25519-SIGNED attestation (kind \"onchain-activity\"). Honest scope: Polymarket-whale on-chain activity — real Polygon transactions of prediction-market wallets — NOT general ERC-20/DEX crypto intel. Every attested row has a real tx_hash (Kalshi's anonymous prints have no on-chain identity and are excluded by construction). Signed facts per trade: tx_hash + block_time (no block number is stored, none is claimed — derive it from the tx receipt), wallet, condition_id, side, price; size_usd is included but labeled a MODELED USD notional in data_basis. Attestations are minted ONCE per tx_hash and reused (byte-stable signature per transaction), and verify FREE offline at GET /verify against the same published key as every Predge envelope. 15 min delay. Query param: limit (1-50, default 20). 404 (not charged) for a wallet with no on-chain Polymarket trades in the Predge dataset.",
    "maxAmountRequired": "20000",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "queryParams": {
          "limit": 20
        }
      },
      "output": {
        "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"
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET",
                "HEAD",
                "DELETE"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "properties": {
                "limit": {
                  "type": "number",
                  "description": "Max attested trades to return (1-50, default 20)"
                }
              }
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog

—

Last indexed by Roundhouse

2026-09-18 04:15Z

Last enriched (probe, favicon, geo)

2026-09-18 20:15Z

x402 version

2

Max timeout

60s

Liveness probe

HTTP 400