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Alchemy Node JSON-RPC Passthrough
x402
Alchemy Node JSON-RPC Passthrough is a paid API for AI agents from stablecrypto.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Executes standard Ethereum JSON-RPC methods against any Alchemy-supported network via a paid passthrough endpoint
Price / call$0.01
Success—
StatusUnknown
How this service works
Pay-per-request access to CoinGecko, DefiLlama, Alchemy, and Etherscan APIs. No auth, no subscriptions.
Output
Returns the raw JSON-RPC response object from Alchemy's node for the specified network and method, including the result field (e.g. hex-encoded balance, block object, transaction receipt, or contract return data) or an error object if the call fails.
Example use cases
Example prompt
“Call eth_getBalance on eth-mainnet for address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 and tell me the current ETH balance.”
Technical details
Endpoint
POSThttps://stablecrypto.dev/api/alchemy/node/rpcWhen to prefer
Use this endpoint when you need to query any standard Ethereum JSON-RPC method across multiple Alchemy-supported networks (Ethereum mainnet, Base, Polygon, etc.) without managing your own Alchemy API key. Ideal for AI agents that need on-chain data reads such as balances, block info, transaction receipts, or contract calls, and can pay per-call via x402/USDC micropayments.
Side effects
- Invalid network slug returns an error indicating unsupported network
- Malformed JSON-RPC method name returns method not found error
- Missing required 'network' or 'method' fields returns HTTP 400 validation error
- Insufficient USDC balance or payment failure returns HTTP 402
- Rate limiting or Alchemy node downtime may return 503 or timeout
- Invalid params array for the given method returns JSON-RPC invalid params error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| method | string | JSON-RPC method (e.g. eth_blockNumber, eth_getBalance) |
| params | array | JSON-RPC params array |
| network | string | Alchemy network slug, e.g. eth-mainnet, base-mainnet |
Tags
x402
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Zero review prompt (fires after every successful call)
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