Index onlineMerchant portal
Api Endpoint

Predge - On-Chain Intel

24h aggregate ON-CHAIN Polymarket flow by market, as ONE ed25519-SIGNED attestation (kind "onchain-flows"): per-market YES/NO volume split, net flow, trade counts and unique wallets over tx_hash-anchored Polygon trades only (platform='polymarket' AND tx_hash present — rows without a tx_hash are excluded by construction). Honest scope: Polymarket-whale on-chain activity, NOT general crypto flows. The signed window_start/window_end are the exact bounds the aggregation ran over (window_end honours the 15-min delay); USD volumes are MODELED notionals, labeled in data_basis. Top-20 markets by volume; market titles ride outside the envelope (mutable metadata, never signed). Verify FREE offline at GET /verify.

Open interactive test console

Offering

Provider
api.predge.io
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Prediction Markets
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://api.predge.io/v1/onchain/pm-flows
MIME type
application/json
First seen
2026-10-16T02:08:53.176Z
Last seen
Tags
polymarket, Onchain, Polygon, market-flows, attestation

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.02 USDC
Atomic price: 20000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
0.02 USDC
Atomic price: 20000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Payment option 3
20000 atomic units
Atomic price: 20000 · Network: algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8= · Asset: 31566704 · Scheme: exact
Payment option 4
20000 atomic units
Atomic price: 20000 · Network: eip155:5042 · Asset: 0x3600000000000000000000000000000000000000 · Scheme: exact
Payment option 5
0.02 USDC
Atomic price: 20000 · Network: eip155:143 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "20000",
    "payTo": "0x9084f5000e07c7133d6da5ee4f271ab6d1821144"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "20000",
    "payTo": "9dxMRRtC7RKZH5rFZpUywjmnQ87H9qHhtW43u5LYmpV"
  },
  {
    "scheme": "exact",
    "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
    "asset": "31566704",
    "amount": "20000",
    "payTo": "5BNIDMJ6YSMZNFXX3EYRPHFZYCV6HWWI2L2CC5A6HXMHHDQERGVFRL3LK4"
  },
  {
    "scheme": "exact",
    "network": "eip155:5042",
    "asset": "0x3600000000000000000000000000000000000000",
    "amount": "20000",
    "payTo": "0x9084f5000e07c7133d6da5ee4f271ab6d1821144"
  },
  {
    "scheme": "exact",
    "network": "eip155:143",
    "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
    "amount": "20000",
    "payTo": "0x9084f5000e07c7133d6da5ee4f271ab6d1821144"
  }
]

Observed health

Status
Healthy
Latest latency
107 ms
Average latency
206 ms
HTTP status
402
Last checked
Reachability
100% over 11 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {}
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string"
    },
    "example": {
      "type": "object"
    }
  },
  "required": [
    "type"
  ]
}