ZEAM Prism MCP – Ethereum & Base JSON-RPC Proxy

x402

ZEAM Prism MCP – Ethereum & Base JSON-RPC Proxy is a paid API for AI agents from mcp.zeamprism.com, paid per call via x402, $0.001903/call, status unknown (last checked 2026-09-18).

Proxies any JSON-RPC method call to an Ethereum or Base blockchain node and returns the verbatim node response, billed per-call via x402.

Price / call$0.001903

Seller volume →—

Success—

StatusUnknown

How this service works

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.

Output

Returns a JSON object containing the chain that was queried, the JSON-RPC method that was called, the HTTP status code from the node, and the full verbatim JSON-RPC response envelope (including id, jsonrpc, result or error fields) exactly as the node returned it.

Example use cases

Check wallet balance on Base

“Look up the ETH balance of 0xAbCd1234...5678 on Base — forward eth_getBalance with block tag 'latest' and tell me what it holds.”

Fetch latest Ethereum block

“What's the most recent block on Ethereum right now? Call eth_getBlockByNumber with 'latest' and return the full block details.”

Simulate a smart contract call

“Simulate calling the totalSupply function on the USDC contract at 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 on Ethereum — use eth_call with the right calldata and tell me the result.”

Technical details

Endpoint

POSThttps://mcp.zeamprism.com/v1/rpc

When to prefer

Choose this endpoint when an AI agent needs direct, metered, pay-per-use access to Ethereum or Base JSON-RPC methods without managing node infrastructure. Ideal for agents that need occasional blockchain queries (balances, transactions, contract calls, traces, debug) and want to pay per call via x402 USDC micropayments rather than maintaining a subscription or running their own node.

Side effects

Unsupported chain value (not 'eth' or 'base') returns an error
Invalid or unsupported JSON-RPC method name returns a node-level method-not-found error
Malformed params array causes node to return an invalid-params error
Payment failure via x402 results in 402 response before the RPC call is forwarded
Node downtime or timeout results in non-200 http_status in the response

Input

Schema · Request body

Field	Type	Description
chainrequired	string	string — which node to forward to: eth or base
methodrequired	string	string — any method the node serves: eth_, net_, web3_, txpool_, debug_, trace_;…
params	array	optional array — JSON-RPC params, default []

Output

Schema · Response

Field	Type	Description
chainrequired	string	the node this was forwarded to
methodrequired	string	the JSON-RPC method called
http_statusrequired	number	the node's HTTP status
rpc_responserequired	object	the node's JSON-RPC envelope, verbatim

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