# 47620 Multichain Gas Price API

> 47620 Multichain Gas Price API is a paid API for AI agents from 47620.xyz, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-19).

Returns current gas price and network fee data for a specified blockchain chain via a pay-per-call endpoint secured by x402 USDC micropayment.

## Facts

- Endpoint: GET https://47620.xyz/x/gas/:chain?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/47620-multichain-gas-price-api-2250bb12
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mgqoKLFq_yCnU86bKo3WQ

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 47620-multichain-gas-price-api-2250bb12
```

Example prompt: What are the current gas fees on Solana right now? I want to know if it's cheap enough to send a transaction before I proceed.

## When to prefer this

Choose this endpoint when your agent needs a lightweight, no-signup, no-API-key gas price check paid per-call in USDC via x402. Ideal for agents that already operate in the x402 micropayment ecosystem on Solana or Polygon and need real-time fee data before executing transactions, without committing to a subscription-based gas oracle service.

## Known failure modes

- Missing or invalid chain parameter returns an error response
- Payment not included or insufficient USDC triggers HTTP 402 requiring x402 payment
- Unsupported chain identifier may return empty data or an error
- Upstream RPC node outage may cause stale or unavailable gas data
- Network congestion may introduce slight data lag

## How this service works

Non-custodial x402 payment gateway on Solana (1% on-chain fee) plus a pay-per-call Solana data API for agents: token price, account balances, tx lookup, trending DEX pairs, network health. No signup, no API key — pay USDC per call.

## Output

Returns a JSON object with ok:true, a data object containing fetchedAt (ISO timestamp) and gas fee data for the requested chain, plus an endpoint identifier string confirming 'gas-multichain'. Useful for pre-flight fee estimation before executing on-chain actions.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "data": {
   "fetchedAt": "<iso>"
  },
  "endpoint": "gas-multichain"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/47620-multichain-gas-price-api-2250bb12/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 47620.xyz](https://www.zero.xyz/host/47620.xyz/llms.txt)