ArbiPulse
The arbitrage layer for every market — 18 endpoints finding the same thing at two prices: prediction-market cross-venue spreads (Polymarket×Kalshi), GPU compute rental…
TradingLiveeip155:8453Exactvia cdp
CryptoCexSpotArbitragePrice-difference
Settlements · 30d
592↑ 783%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$768.65
Verified settled volume
A floor: summed over 5,000 of 11,330 verified settlements.
$0.070
Listed price
As published in the catalog. Always read the live 402 before paying.
15
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-06-12 04:27Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fcThe wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"error": "X-PAYMENT header is required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
"scheme": "exact",
"network": "base",
"mimeType": "application/json",
"resource": "https://arbipulse.theaslangroupllc.com/api/crypto",
"description": "Live CEX spot arbitrage across Binance, Coinbase, Kraken and Bybit — net profit after fees. For crypto trading and arbitrage agents.",
"maxAmountRequired": "70000",
"maxTimeoutSeconds": 300
}
],
"x402Version": 1
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.07USDC≈ $0.07 USD
on Base · exact scheme
Pay 0.07 USDC on Base to 0x50ab…912fc. The signed payment is good for 5 minutes.
- Paid to
- 0x50ab…912fc
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 70000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
"amount": "70000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"pair": "BTC/USDT | ETH/USDT | SOL/USDT | BNB/USDT | XRP/USDT (default: BTC/USDT)",
"exchanges": "comma-separated: Binance,Coinbase,Kraken,Bybit (default: all four)",
"amount_usd": "trade size in USD for profit calculation, e.g. 10000"
}
},
"output": {
"type": "json",
"example": {
"pair": "BTC/USDT",
"scan_time": "2026-06-06T12:00:00Z",
"market_context": "Tight BTC spreads across CEXs at ~0.01%. Market-makers efficiently equalize prices. CEX spot arb is rarely viable without pre-positioned capital on both sides.",
"exchange_prices": [
{
"ask": 67841.2,
"bid": 67840.1,
"last": 67840.55,
"exchange": "Binance",
"volume_24h_usd": 2100000000
},
{
"ask": 67838,
"bid": 67836.8,
"last": 67837.4,
"exchange": "Coinbase",
"volume_24h_usd": 380000000
},
{
"ask": 67843.5,
"bid": 67842,
"last": 67842.3,
"exchange": "Kraken",
"volume_24h_usd": 95000000
}
],
"arb_opportunities": [
{
"viable": false,
"buy_price": 67838,
"sell_price": 67842,
"buy_exchange": "Coinbase",
"sell_exchange": "Kraken",
"estimated_fees": {
"taker_fee_pct": 0.2,
"total_cost_pct": 0.214,
"withdrawal_fee_usd": 2.5
},
"net_profit_pct": -0.208,
"viability_note": "Spread of 0.006% is destroyed by 0.2% taker fees alone. CEX spot arb is only viable on high-spread moments (>0.5%) with pre-funded accounts on both sides.",
"blocking_factors": [
"Fees exceed spread",
"BTC withdrawal takes 30-60 min"
],
"gross_spread_pct": 0.0059,
"execution_time_minutes": 45,
"net_profit_per_10k_usd": -20.8
}
],
"pulse_suggestions": [],
"better_alternatives": [
"Perps funding rate carry (/api/perps)",
"DEX price arb (/api/dex)",
"DeFi yield spread (/api/defi)"
],
"why_cex_arb_is_hard": "Withdrawal delays (30 min to 24h) mean the spread evaporates before transfer completes. Pre-funded accounts on both sides eliminate withdrawal risk but require 2x capital."
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema"
}
}
}Provenance
- Seen in the source catalog
- 2026-06-12 04:27Z
- Last indexed by Roundhouse
- 2026-06-15 08:00Z
- Last enriched (probe, favicon, geo)
- 2026-09-21 03:45Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 402
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service ArbiPulse and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=ArbiPulse' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://arbipulse.vercel.app/api/crypto, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.