# QuickNode JSON-RPC Blockchain Node API

> QuickNode JSON-RPC Blockchain Node API is a paid API for AI agents from Quicknode at mpp.quicknode.com, paid per call via MPP, $0.001/call, status unknown (last checked 2026-10-13).

Executes JSON-RPC calls against 80+ blockchains and 140+ networks via QuickNode's managed node infrastructure

## Facts

- Endpoint: POST https://mpp.quicknode.com/:network?utm_source=zero.xyz
- Price: $0.001/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Provider: Quicknode
- Docs: https://quicknode.com/
- Website: https://quicknode.com/
- Tags: rpc, json-rpc, evm, solana, tempo, node, blockchain
- Canonical page: https://www.zero.xyz/c/quicknode-network-2e088405
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Ch1e0tb0xKNAjO67m9F2d

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-network-2e088405 -d '<json body>'
```

Example prompt: Send a JSON-RPC call to Ethereum mainnet using QuickNode to get the current balance of wallet address 0xAbC123... using eth_getBalance at the latest block.

## When to prefer this

Choose this endpoint when you need reliable, low-latency JSON-RPC access to any of 80+ blockchains including EVM-compatible chains and Solana, especially when you need managed infrastructure without running your own node. At $0.001 per call it is priced for moderate-frequency agent workloads. Prefer this over the cheaper $0.00001/call sibling endpoint when the higher reliability or network selection justifies the cost difference.

## Known failure modes

- Invalid network identifier returns 404 or routing error
- Malformed JSON-RPC payload returns parse error (-32700)
- Unsupported RPC method returns method not found error (-32601)
- Rate limiting or quota exceeded returns HTTP 429
- Invalid params for method returns invalid params error (-32602)
- Node sync lag may return stale or missing data for very recent blocks
- Payment failure results in 402 or access denied response

## How this service works

JSON-RPC calls - $0.001 per call

## Output

Returns a standard JSON-RPC response object containing the result field with the requested on-chain data (e.g. balance in wei, block object, transaction receipt, contract return value) or an error object with code and message if the call fails.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/quicknode-network-2e088405/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mpp.quicknode.com](https://www.zero.xyz/host/mpp.quicknode.com/llms.txt)