# QuickNode JSON-RPC Proxy — Hedera Mainnet

> QuickNode JSON-RPC Proxy — Hedera Mainnet is a paid API for AI agents from x402.quicknode.com, paid per call via x402, $10/call, status unknown (last checked 2026-09-14).

Proxies JSON-RPC calls to the Hedera mainnet blockchain, enabling account queries, transaction submission, and smart contract interactions on Hedera.

## Facts

- Endpoint: POST https://x402.quicknode.com/hedera-mainnet/
- Price: $10/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/quicknode-77532b4d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uVLqyyI9Zl4qOtwCcmgN6

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability quicknode-77532b4d -d '<json body>'
```

Example prompt: Can you check the current block number on Hedera mainnet using a JSON-RPC call with method 'eth_blockNumber' and an empty params array?

## When to prefer this

Choose this endpoint when you need direct JSON-RPC access to the Hedera mainnet — for querying live blockchain state, submitting transactions, or calling smart contracts on the Hedera network specifically. Prefer this over other QuickNode endpoints when your target chain is Hedera (not Ethereum, NEAR, or other siblings).

## Known failure modes

- Invalid JSON-RPC method name returns error code -32601 (method not found)
- Malformed params array returns error code -32602 (invalid params)
- Payment not provided or insufficient USDC returns HTTP 402
- Network congestion or node unavailability may return timeout or 503
- Unsupported method for Hedera specifically returns RPC error

## How this service works

JSON-RPC proxy — hedera-mainnet

## Output

A JSON-RPC 2.0 response object containing the result of the requested Hedera mainnet RPC method — e.g. block number, account balance, transaction receipt, or contract call result — along with the matching request ID.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "jsonrpc",
  "method"
 ],
 "properties": {
  "id": {
   "type": [
    "number",
    "string"
   ],
   "description": "Request identifier"
  },
  "method": {
   "type": "string",
   "description": "JSON-RPC method name (e.g., eth_blockNumber, eth_call)"
  },
  "params": {
   "type": "array",
   "description": "Method parameters"
  },
  "jsonrpc": {
   "type": "string",
   "const": "2.0"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "id": {
   "type": [
    "number",
    "string"
   ]
  },
  "error": {
   "type": "object",
   "properties": {
    "code": {
     "type": "integer"
    },
    "message": {
     "type": "string"
    }
   }
  },
  "result": {
   "description": "RPC result (type varies by method)"
  },
  "jsonrpc": {
   "type": "string",
   "const": "2.0"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/quicknode-77532b4d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.quicknode.com](https://www.zero.xyz/host/x402.quicknode.com/llms.txt)