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/flash",
"description": "Zero-capital flash-loan strategy builder — execution calldata for Aave V3 and Balancer with executor-contract templates. For autonomous DeFi agents.",
"maxAmountRequired": "750000",
"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 0.75 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
- 750000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
"amount": "750000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"asset": "USDC | USDT | WETH | WBTC | DAI (default: USDC)",
"chain": "ethereum | base | arbitrum | optimism | polygon (default: base)",
"amount": "loan amount in USD, e.g. 100000",
"protocol": "aave | balancer (default: aave)",
"receiver": "your executor contract address (optional — shows template if not provided)",
"strategy": "dex-arb | yield-arb | liquidation | custom (default: dex-arb)"
}
},
"output": {
"type": "json",
"example": {
"asset": "USDC",
"chain": "base",
"calldata": "0x42b0b77c000000000000000000000000<receiver_address>000000000000000000000000833589fcd6edb6e08f4c7c32d4f71b54bda02913000000000000000000000000000000000000000000000000000000005f5e100000000000000000000000000000000000000000000000000000000000000000a0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"protocol": "aave-v3",
"pool_address": "0xA238Dd80C259a72e81d7e4664a9801593F98d1c5",
"risk_factors": [
"Tx reverts if arb profit < loan fee",
"Gas cost reduces net profit",
"Front-running by MEV bots"
],
"flash_fee_pct": 0.09,
"flash_fee_usd": 90,
"strategy_type": "dex-arb",
"execution_flow": [
{
"step": 1,
"action": "Call flashLoanSimple on Aave Pool",
"details": "Pool transfers 100,000 USDC to your receiver contract"
},
{
"step": 2,
"action": "executeOperation callback fires",
"details": "Your contract executes the arb — swap USDC→ETH on DEX A, ETH→USDC on DEX B"
},
{
"step": 3,
"action": "Approve and repay",
"details": "Approve Pool for 100,090 USDC (principal + 0.09% fee) — all in same tx"
},
{
"step": 4,
"action": "Profit withdrawn",
"details": "Remaining USDC balance is your profit — tx reverts if insufficient"
}
],
"loan_amount_usd": 100000,
"strategy_summary": "Aave V3 Base flash loan: borrow $100,000 USDC, execute DEX arbitrage, repay with 0.09% fee ($90), keep profit.",
"estimated_gas_usd": 0.5,
"gas_estimate_gwei": 250000,
"onchain_resources": [
{
"url": "https://docs.aave.com/developers/guides/flash-loans",
"name": "Aave V3 Flash Loan Docs"
},
{
"url": "https://basescan.org/address/0xA238Dd80C259a72e81d7e4664a9801593F98d1c5",
"name": "Aave Base Pool"
}
],
"pulse_suggestions": [],
"required_approvals": [
{
"token": "USDC",
"amount": "amount + fee after execution",
"spender": "0xA238Dd80C259a72e81d7e4664a9801593F98d1c5"
}
],
"net_profit_estimate_usd": 847.5,
"executor_contract_template": "interface IFlashLoanSimpleReceiver {\n function executeOperation(address asset, uint256 amount, uint256 premium, address initiator, bytes calldata params) external returns (bool);\n}\n\ncontract FlashArb is IFlashLoanSimpleReceiver {\n address constant AAVE_POOL = 0xA238Dd80C259a72e81d7e4664a9801593F98d1c5;\n // ... implement executeOperation with your arb logic\n}"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema"
}
}
}Provenance
- Seen in the source catalog
- 2026-06-22 16:16Z
- Last indexed by Roundhouse
- 2026-07-22 15:40Z
- Last enriched (probe, favicon, geo)
- 2026-09-20 11:45Z
- 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/flash, 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.