USDC-gated Base JSON-RPC: free 10 req/min, $0.50 per 10k. Failover, cache, /mcp, ledger.
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Scored across 6 tools
Each tool maps to a distinct, standard Ethereum JSON-RPC method: chain metadata, gas price, balance, block lookup, and transaction lookup. There is no meaningful overlap between them.
All tools use the eth_ prefix and standard Base RPC names, making the pattern predictable. A few names are noun-style (eth_blockNumber, eth_chainId, eth_gasPrice) while others use get-, but this follows the canonical RPC naming convention rather than mixing arbitrary styles.
Six tools is a reasonable size for a focused read-only chain gateway. It is slightly thin for a general RPC gateway because common methods are absent, but each included tool has a clear purpose.
The surface covers basic chain metadata, balances, blocks, and transactions, but omits essential Base operations such as contract calls (eth_call), transaction sending, transaction receipts, logs, and gas estimation. Agents needing actual contract or payment interaction will hit dead ends.
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
eth_blockNumbereth_chainIdeth_gasPriceeth_getBalanceeth_getBlockByNumbereth_getTransactionByHashRPC gateway for agents: six mainnets, measured failover, a key without signup, pay per call in USDC.
Solana RPC (keyless)
32 paid x402 endpoints for crypto, Zora & on-chain analysis. 10 MCP tools. USDC on Base.
24 NEAR + Solana + Base blockchain endpoints with x402 USDC micropayments
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