# Synapse API — Ronin Network RPC

> Synapse API — Ronin Network RPC is a paid API for AI agents from synapse-api-brown.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Proxies JSON-RPC calls to the Ronin blockchain network, enabling on-chain queries and transactions via a pay-per-call gateway

## Facts

- Endpoint: POST https://synapse-api-brown.vercel.app/api/ronin/rpc
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synapse-api-ronin-network-rpc-4d416d00
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CVi_11do4OBO26h6JmblE

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 synapse-api-ronin-network-rpc-4d416d00 -d '<json body>'
```

Example prompt: Can you call eth_getBalance on the Ronin network for wallet address 0xAbC123... and tell me the current RON balance?

## When to prefer this

Use this endpoint when you need direct JSON-RPC access to the Ronin blockchain specifically (Axie Infinity ecosystem, RON token, Sky Mavis NFTs) and want pay-per-call pricing without a subscription. Prefer this over general Ethereum RPC providers when Ronin-specific chain ID and validator set are required.

## Known failure modes

- Invalid RPC method name returns JSON-RPC error code -32601 (method not found)
- Malformed params array causes -32602 (invalid params) error
- Network congestion or node downtime may cause timeout or 503 response
- Payment failure (x402) blocks the request before it reaches the RPC node
- Submitting a malformed signed transaction returns execution revert or nonce errors

## How this service works

High-speed API suite for AI processing, web scraping, and smart data utilities across 57+ blockchain networks. Pay-per-call via x402.

## Output

Returns a standard JSON-RPC response object from the Ronin blockchain node, including the 'result' field containing requested on-chain data (balances, block info, transaction receipts, contract return values) or an 'error' object if the call fails.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "method": {
   "type": "string"
  },
  "params": {
   "type": "array",
   "items": {}
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synapse-api-ronin-network-rpc-4d416d00/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from synapse-api-brown.vercel.app](https://www.zero.xyz/host/synapse-api-brown.vercel.app/llms.txt)