BlockchainLive

Bridge Rates

Compares cross-chain bridge quotes to find the cheapest route between chains, powered by LiFi.

$0.0345USDC per call · settled on Base · no subscription, no API key

Overview

Compares cross-chain bridge quotes to find the cheapest route between chains, powered by LiFi. Aggregates Across, Stargate, Hop, deBridge, Synapse, and Circle CCTP via LiFi's public quote API: pass source chain, dest chain, source token, dest token, and amount, and get ranked routes with bridge tool, est_amount_out, gas + fee in USD, est_duration_seconds, and per-step transaction objects ready to sign. Covers Ethereum to Base, Arbitrum, Optimism, and Polygon with USDC and ETH quotes, plus pre-bridge cost, slippage, and ETA estimates. Commercial-OK with LiFi attribution. Use it as a bridge rate aggregator, bridge quote API, or cheapest L1-to-L2 route finder.

Endpoint

MethodEndpointPriceDescription
POST/v1/marketplace/api/bridge-rates$0.0345Invoke Bridge Rates (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 -X POST https://api.jarvisclaw.ai/v1/marketplace/api/bridge-rates \
  -H 'Content-Type: application/json' \
  -d '{}'

# 2. Pay it (the SDK signs and retries for you)
curl -X POST https://api.jarvisclaw.ai/v1/marketplace/api/bridge-rates \
  -H 'Content-Type: application/json' \
  -H 'X-PAYMENT: <signed-payload>' \
  -d '{}'
Open in the marketplace

Docs: Getting started · x402 payments · x402 discovery · All APIs