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Vextorium Multi-Chain JSON-RPC Proxy
x402
Vextorium Multi-Chain JSON-RPC Proxy is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-14).
Executes a read-only JSON-RPC method on any of 14 supported blockchains (12 EVM chains, Solana, XRPL) and returns the raw node result, paid per call at $0.002 USDC.
Price / call$0.002
Success—
StatusUnknown
How this service works
552 pay-per-call data APIs for AI agents: Solana and EVM on-chain data, tokenized stocks, DeFi, Hyperliquid, economy and official statistics, FX, validation, web and developer tools. Pay in USDC via x402.
Output
A JSON object containing the chain queried, the RPC method called, the raw result from the node (e.g. a hex block number, balance, or structured object), the source node URL, and the round-trip latency in milliseconds.
Example use cases
Check wallet ETH balance on Base
“What's the ETH balance of 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Base? Use eth_getBalance with 'latest'.”
Get latest Solana slot number
“What's the current slot on Solana? Call the getSlot method on the Solana chain.”
Read XRPL account info
“Look up the XRP Ledger account info for rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh using the account_info method.”
Technical details
Endpoint
POSThttps://api.vextorium.com/v1/rpc?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need raw, low-level JSON-RPC access to any of 14 supported chains without setting up your own RPC node or managing API keys. It is ideal for agents that need to make one-off or infrequent on-chain reads across multiple chains without provisioning per-chain infrastructure. At $0.002/call it suits low-to-moderate query volumes where pay-per-call is preferred over subscription RPC services.
Side effects
- Unsupported chain identifier returns an error
- Write methods (eth_sendRawTransaction, etc.) are rejected as read-only endpoint
- Malformed params array causes node-level RPC error
- Node timeout or temporary unavailability returns latency spike or error
- Payment failure (insufficient USDC) blocks the call via x402 protocol
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| chain | string | |
| method | string | JSON-RPC method (read-only), e.g. eth_getBalance, getSlot, account_info |
| params | array | Method params (for XRPL, one object) |
Output
Schema · Response
{
"type": "json",
"example": {
"chain": "base",
"method": "eth_blockNumber",
"result": "0x3214aa0",
"source": "Public node (base-rpc.publicnode.com)",
"latency_ms": 100
}
}Tags
x402
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