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…
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
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/commodity",
"description": "Cross-regional price differentials for oil, gas, metals and grains, with transport-cost breakdown. Prices are news-derived (no live exchange tape) and labelled per row. For commodity and arbitrage agents.",
"maxAmountRequired": "100000",
"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.
Pay 0.1 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
- 100000 smallest units
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 985iFj…B5KX1
- Token contract
- EPjFWd…TDt1v
- Payment window
- 5 minutes
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
"amount": "100000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
},
"payTo": "985iFjbnGQ3dJcwXnfRCMSrH4Jnc3kW1N6msR64B5KX1",
"amount": "100000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"unit": "bbl | mmbtu | ton | oz | bushel (default: auto)",
"regions": "us,eu,asia,mena,latam (comma-separated, default: all major hubs)",
"commodity": "oil | natural-gas | copper | gold | wheat | corn | soybeans | coffee | cocoa | cotton | lng | coal (default: natural-gas)"
}
},
"output": {
"type": "json",
"example": {
"commodity": "natural-gas",
"scan_time": "2026-06-06T12:00:00Z",
"futures_basis": {
"carry_trade_angle": "Storage economics: if contango > storage + financing cost, buying spot and selling futures is profitable",
"front_month_vs_next": -0.15,
"contango_or_backwardation": "contango"
},
"global_context": "LNG arbitrage between Henry Hub and Asian JKM represents one of the largest persistent cross-market spreads in commodities. Retail access via UNG (US gas ETF) / JNK hedges or gas producer equities.",
"key_arb_players": [
"Shell",
"TotalEnergies",
"BP",
"Vitol",
"Trafigura",
"Gunvor"
],
"pulse_suggestions": [],
"seasonal_patterns": "US gas peaks Dec-Feb (heating) and July (cooling). European TTF typically highest Nov-Mar. Asian LNG peaks Jan for heating, Jun-Aug for cooling.",
"trade_flow_context": "US LNG exports at record levels. EU has replaced ~70% of Russian pipeline gas with LNG. JKM premium over TTF has compressed to lowest in 2 years.",
"price_differentials": [
{
"route": "US Gulf Coast → Northeast Asia (LNG)",
"viable": true,
"net_arb_pct": 219.3,
"net_arb_usd": 6.25,
"other_costs_usd": 1.2,
"tariff_cost_usd": 0,
"blocking_factors": [
"Requires LNG tanker and liquefaction capacity",
"Locked by long-term contracts — spot LNG limited"
],
"gross_spread_pct": 349.1,
"gross_spread_usd": 9.95,
"opportunity_window": "3-6 months for spot LNG cargo setup",
"transport_cost_usd": 2.5
}
],
"retail_accessibility": "ETF/futures only",
"regional_price_matrix": [
{
"region": "US Gulf Coast",
"benchmark": "Henry Hub",
"price_usd": 2.85,
"price_unit": "$/MMBtu",
"data_freshness": "live",
"country_examples": [
"USA"
]
},
{
"region": "Northwest Europe",
"benchmark": "TTF Hub",
"price_usd": 10.4,
"price_unit": "$/MMBtu",
"data_freshness": "live",
"country_examples": [
"Netherlands",
"Germany",
"UK"
]
},
{
"region": "Northeast Asia",
"benchmark": "JKM Spot",
"price_usd": 12.8,
"price_unit": "$/MMBtu",
"data_freshness": "live",
"country_examples": [
"Japan",
"South Korea",
"China"
]
}
]
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema"
}
},
"builder-code": {
"info": {
"a": "bc_gxy6qn5p"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
}Provenance
- Seen in the source catalog
- 2026-06-26 17:26Z
- Last indexed by Roundhouse
- 2026-07-26 15:50Z
- Last enriched (probe, favicon, geo)
- 2026-09-21 10:45Z
- 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/commodity, 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.