# Services from chain.gpuops.io on Zero

> chain.gpuops.io serves 12 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/chain.gpuops.io
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/chain.gpuops.io/health.json

## Services

- [GPUOps BSC (Binance Smart Chain) RPC Endpoint](https://www.zero.xyz/c/gpuops-bsc-binance-smart-chain-rpc-endpoint-eb5140f3/llms.txt): $0.001/call via x402. Provides JSON-RPC access to the Binance Smart Chain (BSC) blockchain via a pay-per-call API using USDC on Base.
- [GPUOps Block Number API](https://www.zero.xyz/c/gpuops-block-number-api-700b9c46/llms.txt): $0.001/call via x402. Returns the current block number for a specified blockchain network
- [GPUOps Blockchain Balance API](https://www.zero.xyz/c/gpuops-blockchain-balance-api-5c0ef680/llms.txt): $0.001/call via x402. Retrieves the native token balance for a wallet address on a specified blockchain network across 7 supported chains
- [GPUOps Ethereum RPC Endpoint](https://www.zero.xyz/c/gpuops-ethereum-rpc-endpoint-a2e94d19/llms.txt): $0.001/call via x402. Executes Ethereum JSON-RPC calls via a pay-per-call API using x402/USDC micropayments on Base
- [GPUOps Blockchain Data MCP – Optimism RPC](https://www.zero.xyz/c/gpuops-blockchain-data-mcp-optimism-rpc-83ae515a/llms.txt): $0.001/call via x402. Provides JSON-RPC access to the Optimism (OP Mainnet) blockchain, enabling queries for blocks, transactions, balances, and on-chain state via a pay-per-call x402 API.
- [GPUOps Arbitrum RPC Endpoint](https://www.zero.xyz/c/gpuops-arbitrum-rpc-endpoint-00e49da0/llms.txt): $0.001/call via x402. Provides pay-per-call JSON-RPC access to the Arbitrum blockchain network via x402 micropayments
- [GPUOps Avalanche RPC Endpoint](https://www.zero.xyz/c/gpuops-avalanche-rpc-endpoint-c0b9db8b/llms.txt): $0.001/call via x402. Provides JSON-RPC access to the Avalanche blockchain via a pay-per-call API using USDC on Base
- [GPUOps Polygon RPC Endpoint](https://www.zero.xyz/c/gpuops-polygon-rpc-endpoint-94df6a97/llms.txt): $0.001/call via x402. Provides JSON-RPC access to the Polygon blockchain network via a pay-per-call API using USDC on Base.
- [GPUOps Blockchain Transaction Lookup](https://www.zero.xyz/c/gpuops-blockchain-transaction-lookup-09f3b63b/llms.txt): $0.001/call via x402. Looks up a blockchain transaction by hash and chain, returning transaction details across 7 supported chains, paid per-call with USDC on Base via x402.
- [GPUOps Blockchain Data MCP – Base RPC](https://www.zero.xyz/c/gpuops-blockchain-data-mcp-base-rpc-cfd0205a/llms.txt): $0.001/call via x402. Provides JSON-RPC access to Base chain blockchain data via a pay-per-call x402 API
- [GPUOps Block Data Endpoint](https://www.zero.xyz/c/gpuops-block-data-endpoint-1ff0f4a2/llms.txt): $0.001/call via x402. Retrieves block-level data for a specified block number on one of 7 supported blockchain networks
- [GPUOps Gas Price Lookup](https://www.zero.xyz/c/gpuops-gas-price-lookup-35cce134/llms.txt): $0.001/call via x402. Returns current gas price data for a specified blockchain network

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)