# Phantom API — Gnosis Chain RPC

> Phantom API — Gnosis Chain RPC is a paid API for AI agents from phantom-api-omega.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-22).

Provides a pay-per-call JSON-RPC endpoint for querying Gnosis Chain blockchain data and interacting with smart contracts.

## Facts

- Endpoint: POST https://phantom-api-omega.vercel.app/api/gnosis/rpc?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/phantom-api-gnosis-chain-rpc-d226c625
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_z_mlFa6iLhud-6LFNc80z

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 phantom-api-gnosis-chain-rpc-d226c625 -d '<json body>'
```

Example prompt: Can you check the current ETH balance of wallet address 0xABC...123 on Gnosis Chain using eth_getBalance?

## When to prefer this

Choose this endpoint when you need low-latency, pay-per-call access to Gnosis Chain (xDai) specifically — ideal for agents that need occasional blockchain reads without a subscription, or when querying Gnosis-native DeFi protocols, bridged assets, or xDAI balances.

## Known failure modes

- Invalid JSON-RPC method name returns error code -32601
- Malformed params array returns parse error -32700
- Non-existent block or transaction hash returns null result
- Payment not provided or insufficient USDC returns 402 Payment Required
- Network congestion or node unavailability returns 503 or timeout
- Requesting data from future block returns error

## How this service works

Lightning-fast access to blockchain data, smart contract insights, and Web3 infrastructure across 57+ networks. Pay-per-call via x402.

## Output

Returns a standard JSON-RPC response object containing the result field with the requested on-chain data (balance, block info, contract return value, transaction receipt, logs, etc.) 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/phantom-api-gnosis-chain-rpc-d226c625/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from phantom-api-omega.vercel.app](https://www.zero.xyz/host/phantom-api-omega.vercel.app/llms.txt)