# Phantom API — Arbitrum Token Metadata

> Phantom API — Arbitrum Token Metadata 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 2026-09-14).

Retrieves token metadata (name, symbol, decimals, etc.) for a given ERC-20 or token contract address on the Arbitrum network

## Facts

- Endpoint: POST https://phantom-api-omega.vercel.app/api/arbitrum/token/metadata
- 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/phantom-api-arbitrum-token-metadata-33c81634
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_EX4dhGHX1sihnV9MDaWqV

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-arbitrum-token-metadata-33c81634 -d '<json body>'
```

Example prompt: Can you look up the token metadata — name, symbol, and decimals — for the Arbitrum contract at 0xFF970A61A04b1cA14834A43f5dE4533eBDDB5CC8?

## When to prefer this

Use this endpoint when you need fast, pay-per-call token metadata resolution on Arbitrum specifically — ideal for agents that encounter raw contract addresses and need to resolve them to human-readable token info without maintaining a full node or subscribing to a costly data provider. Prefer over general blockchain explorers when you need programmatic, structured JSON output for ERC-20 token metadata on Arbitrum.

## Known failure modes

- Invalid or malformed contract address returns an error
- Contract address exists on Arbitrum but is not a standard token (e.g. a plain contract) — may return incomplete metadata
- Contract address is valid on another chain but not deployed on Arbitrum — returns not found
- Payment not processed correctly via x402 — returns 402 Payment Required
- Network or RPC issues may cause timeout or 5xx errors

## 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 structured metadata for the specified Arbitrum token contract, including the token name, symbol, number of decimals, and potentially other contract-level details such as total supply or contract type.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "contractAddress": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/phantom-api-arbitrum-token-metadata-33c81634/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)