# QuickNode x402 Networks RPC Payment Gateway

> QuickNode x402 Networks RPC Payment Gateway 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).

Pay $10 USDC to access QuickNode Core API blockchain RPC endpoints across multiple networks via the x402 payment protocol

## Facts

- Endpoint: POST https://x402.quicknode.com/networks
- 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-x402-networks-rpc-payment-gateway-f0f1677f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XV-67Yk7An4YNLsgpTtYH

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-x402-networks-rpc-payment-gateway-f0f1677f -d '<json body>'
```

Example prompt: Send a JSON-RPC call to QuickNode's Core API to get the latest Ethereum block number — pay the $10 USDC per-call fee via x402 and return the result.

## When to prefer this

Choose this endpoint when you need one-off or infrequent access to QuickNode's Core API across multiple blockchain networks without committing to a subscription, and when you can pay $10 USDC per call via the x402 protocol. Prefer this over the per-request ($0.001) or nanopayment ($0.0001) options when making high-value or infrequent calls where latency and reliability of QuickNode's infrastructure matter more than cost optimization.

## Known failure modes

- Insufficient USDC balance for the $10 per-call fee — payment rejected
- Invalid or unsupported network identifier — endpoint not found
- Malformed JSON-RPC request body — RPC parse error returned
- x402 payment authorization failure — 402 Payment Required with no result
- Network congestion or node unavailability — timeout or 503 error
- Invalid JSON-RPC method for the selected network — method not found error

## How this service works

Payment for credits to access Quicknode Core API

## Output

A JSON-RPC 2.0 response object containing an id, jsonrpc version string, and result field with the blockchain data (e.g. block hash, transaction hash, or state value) returned by the QuickNode node for the requested network.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "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"
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "id": 1,
  "result": "0x1234567",
  "jsonrpc": "2.0"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/quicknode-x402-networks-rpc-payment-gateway-f0f1677f/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)