Arc Cost

What a given operation SHOULD cost on Arc right now, in dollars - a price list computed at the gas price read at this block, and the companion to /api/x402/arc-gas which measures…

Overview

What a given operation SHOULD cost on Arc right now, in dollars - a price list computed at the gas price read at this block, and the companion to /api/x402/arc-gas which measures what transactions ACTUALLY cost across a spread of blocks. Use this one to quote an operation, that one to budget for the tail: the 20 gwei floor holds most of the time but is not a cap, and the response says so. Arc settles gas in native USDC, so this is a real cost table, not a token estimate: live gas price and block time, the USDC cost of a transfer, an ERC-20 transfer, a Uniswap v4 swap and a contract deploy, our own measured per-operation costs from running on Arc since launch day, and the integration caveats that break docs-driven builds (the 18-decimal native USDC vs the 6-decimal ERC-20 view, and the eth_getLogs cap). For anyone costing Arc for payments or agent operations rather than trading.

Endpoint

Method	Endpoint	Price	Description
GET	/v1/marketplace/api/arc-cost	$0.00345	Invoke Arc Cost (Blockchain) and return the upstream response.

How to call it

Requests are paid per call over the x402 protocol. Call the endpoint, receive a 402 Payment Required quote, then repeat the request with the signed payment header. The SDKs do both steps for you.

# 1. Ask for a quote
curl -i https://api.jarvisclaw.ai/v1/marketplace/api/arc-cost

# 2. Pay it (the SDK signs and retries for you)
curl -H "X-PAYMENT: <signed-payload>" https://api.jarvisclaw.ai/v1/marketplace/api/arc-cost

Open in the marketplace