Compare Polymarket API vs Polygon blockchain events for latency arbitrage, whale signals, and settlement predictions.
What it does
This endpoint from Einstein AI compares Polymarket API data against Polygon blockchain events, returning raw data useful for latency arbitrage detection, whale signal identification, and settlement predictions. It is part of the broader Einstein AI x402 API suite, which provides AI-powered blockchain intelligence via pay-per-request micropayments.
The endpoint accepts POST requests with a JSON body containing an optional `limit` parameter (max 500 results, default 10). It returns raw query results (the `/raw` suffix indicates no AI-generated analysis is appended). Payment is required via the x402 protocol at $1.00 per request, payable in USDC on Base (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913), USDC on Solana, or BTC via Lightning Network (1,309 sats). The endpoint is live and returns a proper 402 payment challenge with a 90-second timeout on Base.
The broader Einstein AI platform supports multi-chain queries across Ethereum, Base, BSC, Arbitrum, Polygon, Optimism, zkSync, and Solana. The API requires no API keys — authentication is handled entirely through x402 payment headers. Note that this specific endpoint is not listed in the published OpenAPI spec (which covers 24 other endpoints), so its detailed response schema is only partially documented via the x402 challenge's outputSchema field. The output includes `status`, `result` (object), and `payment` (receipt) fields.
Capabilities
Use cases
- —Detecting latency differences between Polymarket API updates and Polygon on-chain events for arbitrage opportunities
- —Identifying whale-sized positions or movements on Polymarket prediction markets
- —Analyzing on-chain settlement patterns to predict market resolution timing
- —Building automated trading strategies that exploit API-to-chain data lag
- —Monitoring Polymarket event contracts for unusual activity
Fit
Best for
- —Agents or traders seeking prediction market arbitrage signals
- —Whale watchers monitoring large Polymarket positions
- —Quantitative researchers comparing off-chain API data with on-chain events
- —Automated DeFi bots needing raw Polymarket/Polygon comparison data
Not for
- —Users needing AI-interpreted analysis (this is a /raw endpoint returning unprocessed data)
- —General-purpose prediction market browsing or UI-based exploration
- —Users without x402-compatible wallets or Lightning payment capability
Quick start
curl -X POST https://emc2ai.io/x402/bitquery/polymarket-chain-compare/raw \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <base64-encoded-signed-USDC-authorization>" \
-d '{"limit": "10"}'Example
Request
{
"limit": "10"
}Response
{
"result": {
"comparisons": [
{
"eventId": "0xabc...",
"latencyMs": 3000,
"volumeUsd": 52000,
"apiTimestamp": "2025-01-15T12:00:00Z",
"chainTimestamp": "2025-01-15T12:00:03Z"
}
]
},
"status": "completed",
"payment": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "1000000",
"scheme": "exact",
"txHash": "0xdef...",
"network": "base",
"timestamp": "2025-01-15T12:00:05Z",
"x402Version": 1
}
}Endpoint
Quality
The endpoint is live with a valid 402 challenge and the broader Einstein AI platform has a full OpenAPI spec, but this specific polymarket-chain-compare/raw endpoint is not documented in the OpenAPI paths. The response schema is only partially described via the outputSchema in the x402 challenge. The example response is inferred, not sourced from actual documentation.
Warnings
- —This specific endpoint (/x402/bitquery/polymarket-chain-compare/raw) is NOT listed in the published OpenAPI spec — only discovered via the x402 challenge
- —The /api route returned a 522 (host error) during crawl, suggesting some backend instability
- —Response body structure is inferred from the generic outputSchema in the x402 challenge; actual fields may differ
- —Example response JSON is illustrative and not sourced from real documentation
Citations
- —Endpoint returns 402 with x402 payment challenge accepting USDC on Base, USDC on Solana, and BTC via Lightninghttps://emc2ai.io/x402/bitquery/polymarket-chain-compare/raw
- —Price is $1.00 per request (1,000,000 atomic units with 6 decimals = USDC)https://emc2ai.io/x402/bitquery/polymarket-chain-compare/raw
- —Lightning payment option at 1,309 sats with usdEquivalent of $1.00https://emc2ai.io/x402/bitquery/polymarket-chain-compare/raw
- —Einstein AI x402 API prices range from $0.25 to $1.00 per requesthttps://emc2ai.io/docs
- —The outputSchema specifies POST method with limit bodyField and output fields status/result/paymenthttps://emc2ai.io/x402/bitquery/polymarket-chain-compare/raw
- —Pay-to address on Base is 0xc9368b30BD620164FD1a05a5d99dcaf8Ae754775https://emc2ai.io/x402/bitquery/polymarket-chain-compare/raw
- —Einstein accepts payments on three chains: USDC on Base, USDC on Solana, and BTC via Lightning Networkhttps://emc2ai.io/docs