# Phantom API — Superseed Gas Estimator

> Phantom API — Superseed Gas Estimator 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 2026-10-18).

Estimates gas cost for a transaction on the Superseed network before submission

## Facts

- Endpoint: POST https://phantom-api-omega.vercel.app/api/superseed/gas/estimate?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/phantom-api-superseed-gas-estimator-0e80ace7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_camg6mEQwioXmhdR_9Zi8

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-superseed-gas-estimator-0e80ace7 -d '<json body>'
```

Example prompt: Estimate the gas needed to call this contract on Superseed — sending from 0xAbC...123 to 0xDef...456 with calldata 0xa9059cbb... and 0 ETH value.

## When to prefer this

Use this endpoint when you need gas estimation specifically on the Superseed network and want a pay-per-call model without managing your own RPC infrastructure or API keys. Prefer it over generic RPC providers when Superseed-specific support and Web3 infrastructure reliability are priorities.

## Known failure modes

- Invalid or malformed address in 'to' or 'from' fields returns an error
- Malformed calldata in 'data' field causes estimation failure
- Transaction would revert on-chain — gas estimation may fail or return an error indicating revert
- Network unavailability or RPC node downtime returns a 5xx error
- Missing required fields may return a validation 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 an estimated gas amount (gas limit) for the described transaction on the Superseed network, helping callers set appropriate gas limits and anticipate transaction fees before broadcasting.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "to": {
   "type": "string"
  },
  "data": {
   "type": "string"
  },
  "from": {
   "type": "string"
  },
  "value": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/phantom-api-superseed-gas-estimator-0e80ace7/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)