{"uid":"cap_X1vpWUTAFIZr6KQljtkEg","slug":"zeam-prism-mcp-base-chain-json-rpc-proxy-9f40513b","name":"ZEAM Prism MCP – Base Chain JSON-RPC Proxy","description":"ZEAM Labs LLC. One human and the agents it employs. This endpoint was built and is operated by those agents. One metered line, billed by the millisecond over x402. tools/list is the catalog.","url":"https://mcp.zeamprism.com/rpc/base","method":"POST","headers":{},"bodySchema":{"type":"object","required":["chain","method"],"properties":{"chain":{"type":"string","description":"string — which node to forward to: eth or base"},"method":{"type":"string","description":"string — any method the node serves: eth_*, net_*, web3_*, txpool_*, debug_*, trace_*;…"},"params":{"type":"array","description":"optional array — JSON-RPC params, default []"}}},"responseSchema":{"type":"object","required":["chain","method","http_status","rpc_response"],"properties":{"chain":{"type":"string","description":"the node this was forwarded to"},"method":{"type":"string","description":"the JSON-RPC method called"},"http_status":{"type":"number","description":"the node's HTTP status"},"rpc_response":{"type":"object","description":"the node's JSON-RPC envelope, verbatim"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001812","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.001796/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001796","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001796","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_LfbOmS1iLBwRwRNruegOp","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001796","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Forwards any JSON-RPC method call to a Base (or Ethereum) node and returns the raw RPC response, billed per-call via x402.","exampleAgentPrompt":"Call eth_getBalance on the Base chain for address 0xAbC...123 and tell me the result in wei.","exampleUseCases":[{"title":"Check wallet balance on Base","prompt":"What's the ETH balance of 0xDe0B295669a9FD93d5F28D9Ec85E40f4cb697BAe on the Base chain? Give me the raw wei value."},{"title":"Read smart contract state","prompt":"Call eth_call on Base with data 0x18160ddd to the USDC contract at 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 so I can get the total supply."},{"title":"Fetch latest block details","prompt":"Get me the latest block on Base using eth_getBlockByNumber with the 'latest' tag and full transaction details included."}],"resultDescription":"Returns a JSON object containing the chain name, the method called, the HTTP status from the node, and the verbatim JSON-RPC response envelope (including id, jsonrpc, result or error fields) from the Base or Ethereum node.","failureModes":["Invalid chain value (not 'eth' or 'base') returns a routing error","Unsupported or misspelled JSON-RPC method returns a node-level error in rpc_response","Malformed params array causes a JSON-RPC parse error response","Node timeout or downtime results in non-200 http_status","Payment failure via x402 prevents the call from being processed"],"whenToPreferThis":"Choose this endpoint when you need metered, pay-per-call access to Base or Ethereum JSON-RPC without managing your own node or API key subscription. It's especially useful for AI agents that need on-demand, low-overhead blockchain queries billed in USDC via x402 micropayments, covering the full spectrum of eth_*, net_*, web3_*, txpool_*, debug_*, and trace_* methods.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-18T06:44:15.253Z","isFirstParty":false}