# SiteCheck Solana JSON-RPC Proxy

> SiteCheck Solana JSON-RPC Proxy is a paid API for AI agents from api.sitecheck-api.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-29).

Executes Solana Mainnet JSON-RPC read methods (e.g. getBalance, getSlot) via a pay-per-call proxy backed by Helius RPC

## Facts

- Endpoint: POST https://api.sitecheck-api.workers.dev/api/rpc/solana?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sitecheck-solana-json-rpc-proxy-867e885c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6M6mVpG2PXbtc37273WNj

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 sitecheck-solana-json-rpc-proxy-867e885c -d '<json body>'
```

Example prompt: What's the current SOL balance of wallet address 9WzDXwBbmkg8ZTbNMqUxvQRAyrZzDsGYdLVL9zYtAWWM on Solana mainnet?

## When to prefer this

Choose this endpoint when you need a simple, pay-per-call Solana mainnet JSON-RPC read without managing your own RPC node or API key. Ideal for agents that make sporadic Solana queries and prefer per-call micropayment billing over subscription plans. Backed by Helius for reliability.

## Known failure modes

- Invalid or unsupported JSON-RPC method name returns an error or empty result
- Malformed params array causes RPC error response
- Rate limiting or upstream Helius RPC outage results in timeout or 5xx error
- Payment failure (insufficient USDC) blocks the request before it reaches the RPC
- Write methods (sendTransaction, etc.) are not supported — read-only endpoint

## How this service works

Read-only JSON-RPC pass-through for Solana mainnet. Allowed methods: getAccountInfo, getBalance, getTransaction, getSignaturesForAddress (limit <= 100), getTokenAccountsByOwner, getTokenSupply, getSlot, getBlockTime, getLatestBlockhash, getMultipleAccounts (<= 20). Write methods and getProgramAccounts refused.

## Output

Returns a JSON object containing the Solana RPC source ('Solana Mainnet RPC'), the underlying provider hostname, the full JSON-RPC 2.0 response object (with id, result, and jsonrpc fields), a timestamp of when the check was performed, and a disclaimer that the data is informational only.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "method": {
   "type": "string",
   "description": "Solana JSON-RPC read method (e.g. getSlot, getBalance)"
  },
  "params": {
   "type": "array",
   "description": "JSON-RPC parameters array"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "source": "Solana Mainnet RPC",
  "provider": "mainnet.helius-rpc.com",
  "response": {
   "id": 1,
   "result": 457335455,
   "jsonrpc": "2.0"
  },
  "checkedAt": "2026-10-15T18:21:05.283Z",
  "disclaimer": "Information only, not financial advice."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sitecheck-solana-json-rpc-proxy-867e885c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.sitecheck-api.workers.dev](https://www.zero.xyz/host/api.sitecheck-api.workers.dev/llms.txt)