# QuickNode x402 Drip - Blockchain JSON-RPC via Micropayment

> QuickNode x402 Drip - Blockchain JSON-RPC via Micropayment is a paid API for AI agents from x402.quicknode.com, paid per call via x402, $10/call, status unknown (last checked 2026-09-15).

Executes a JSON-RPC method call against a blockchain node via QuickNode, paid per-call with $10 USDC using the x402 payment protocol

## Facts

- Endpoint: POST https://x402.quicknode.com/drip
- Price: $10/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/quicknode-x402-drip-blockchain-json-rpc-via-micropayment-61c745f7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SEKrF9stdEXEBZB2tg3b-

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-drip-blockchain-json-rpc-via-micropayment-61c745f7 -d '<json body>'
```

Example prompt: Call the QuickNode drip endpoint with JSON-RPC method eth_blockNumber and no params to get the current Ethereum block number — use request ID 1 and pay the $10 USDC per-call fee via x402.

## When to prefer this

Use this endpoint when you need pay-per-call access to blockchain RPC methods via QuickNode without a subscription, especially when making infrequent calls and want to avoid monthly plan commitments. Prefer this over standard QuickNode subscriptions for sporadic or agent-driven blockchain queries that use x402 micropayments in USDC.

## Known failure modes

- Insufficient USDC balance — payment fails before RPC call is made
- Invalid JSON-RPC method name — node returns error object with code and message
- Malformed params array — RPC returns invalid params error
- Network or chain unavailable — upstream QuickNode node unreachable
- Payment protocol error — x402 handshake fails or payment not accepted

## How this service works

Payment for credits to access Quicknode Core API

## Output

A JSON-RPC 2.0 response object containing the result of the requested blockchain method call (e.g. a block number as a hex string, transaction receipt, contract call output), along with the matching request ID.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/quicknode-x402-drip-blockchain-json-rpc-via-micropayment-61c745f7/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)