Task

Eip155

3 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.

X Pay x402 REST usage

Payment quote with amount, asset, and merchant wallet

www.api-xpay.com Crypto & Payments 7,020 calls / 30d checked 2026-10-25

0.005 USDC per call per call

Chain ID (EIP-155) x402 REST usage

The EIP-155 chain ID for any supported network via eth_chainId — the read multi-chain agents make to confirm which chain an RPC is on before signing. Across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. Free publi...

x402-agent-store.rileycraig14.workers.dev Crypto & Payments 4 calls / 30d checked 2026-10-25

0.001 USDC per call per call

base-chain-id x402 REST usage

Base mainnet chain ID (EIP-155) via eth_chainId - confirm which network you're actually talking to.

x402.agentindex.world Other services 3 calls / 30d checked 2026-10-25

0.001 USDC per call per call

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