SWAP_CALLDATA @ 1.0.0

Swap calldata: unsigned transactions for your wallet to sign

Everything SWAP_QUOTE returns, plus the unsigned transactions your own wallet signs and sends for the best route you can fund: an exact-amount approval when needed (never unlimited), then the swap with a hard minimum output and an on-chain deadline, simulated from your wallet on two RPC operators at the pinned block. Arbiter never signs, submits or holds funds. Optional integrator fee: off unless enabled; then at most 10 bps on stablecoin and 25 bps on WETH output legs, paid inside your transaction and proven by a fee-leg guard. Unscreened tokens are refused. Example request: {"chainIds":[8453],"tokenIn":"USDC","tokenOut":"WETH","amountIn":"250","taker":"0xYourWallet"}. Declared completion: p95 3 s, max 15 s.

From $0.0086 per call

What you get

Everything SWAP_QUOTE returns, plus the unsigned transactions your own wallet signs and sends for the best route you can fund: an exact-amount approval when needed (never unlimited), then the swap with a hard… Price: from $0.00858 per call, paid over x402 v2 on Ethereum, OP Mainnet, Sei, Polygon PoS, Monad Mainnet, Arbitrum One, Avalanche C-Chain, Arc, Base; the exact amount is in the 402 quote. Delivery: after the payment is final on-chain; repeat the same request until state is FULFILLED.

Terms

Product

SWAP_CALLDATA @ 1.0.0

Category

Market Intelligence

Family

Arbiter Execution

Source

Public EVM chain state, read at a confirmed block by two independent keyed RPC operators (Alchemy, dRPC) that must agree; Arbiter's pinned venue book (Uniswap V3 fee tiers, Uniswap V2 and PancakeSwap V2)

Price

From $0.0086 per call. Every request is quoted; the 402 response states the exact amount before anything is paid.

Pays with

x402 on eip155:1, eip155:10, eip155:1329, eip155:137, eip155:143, eip155:42161, eip155:43114, eip155:5042, eip155:8453

Freshness

Current Snapshot

Latency

Fast

Buy it with x402 or the API

POST https://arbiterverse.com/api/x402/SWAP_CALLDATA with a JSON body {"request": {...}}. An unpaid call answers 402 with the exact x402 v2 terms; repeat it with the payment signature to receive the result.

A working example request:

{
  "request": {
    "chainIds": [
      8453
    ],
    "tokenIn": "USDC",
    "tokenOut": "WETH",
    "amountIn": "250",
    "taker": "0x1111111111111111111111111111111111111111"
  }
}

Schema and errors: /docs/SWAP_CALLDATA.json and /openapi.json. All services.