# Phantom API — Plasma RPC Endpoint

> Phantom API — Plasma RPC Endpoint 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 2026-10-16).

Executes JSON-RPC calls against blockchain networks to retrieve on-chain data and interact with smart contracts across 57+ networks, billed per call via x402.

## Facts

- Endpoint: POST https://phantom-api-omega.vercel.app/api/plasma/rpc?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/phantom-api-plasma-rpc-endpoint-27a926af
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_S5Xx8DGeNA3BFzFQ4KsL5

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-plasma-rpc-endpoint-27a926af -d '<json body>'
```

Example prompt: Can you call eth_getBalance with params ['0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045', 'latest'] on Ethereum so I can see the current ETH balance for that wallet?

## When to prefer this

Choose this endpoint when you need pay-per-call blockchain RPC access across 57+ networks without provisioning or managing your own node infrastructure. Ideal for agents that need sporadic or multi-chain on-chain queries billed in micro-USDC increments rather than a monthly subscription node provider.

## 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 not supported returns an error indicating unsupported chain
- Payment failure via x402 blocks access with HTTP 402
- Rate limiting or infrastructure downtime returns 5xx errors
- Calling a write method (e.g. eth_sendRawTransaction) may be restricted or require additional auth

## 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, logs, etc.) or an error object with code and message 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-plasma-rpc-endpoint-27a926af/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)