# ACP MetaBot Gas Oracle — on-chain gas price feed via ButlerBridgeBot

> ACP MetaBot Gas Oracle — on-chain gas price feed via ButlerBridgeBot is a paid API for AI agents from api.acp-metabot.dev, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-14).

Returns current gas price oracle data for blockchain transactions, settled on-chain at $0.05 USDC per call via the x402 payment protocol on Base.

## Facts

- Endpoint: POST https://api.acp-metabot.dev/butlerbridgebot/v1/x402/gas_oracle?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/acp-metabot-gas-oracle-on-chain-gas-price-feed-via-butlerbridgebot-4134b426
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ys1pC6ZZFoGA_0pv9Lgj2

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 acp-metabot-gas-oracle-on-chain-gas-price-feed-via-butlerbridgebot-4134b426 -d '<json body>'
```

Example prompt: Check the current gas oracle price on Base right now — I need to know what gas fees look like before I submit my transaction, and I'm okay paying the $0.05 USDC fee to get a live oracle reading.

## When to prefer this

Choose this endpoint when you need a live, on-chain gas price oracle reading on Base and want a pay-per-call model at $0.05 USDC with no API key setup — ideal for AI agents that need gas fee data intermittently without a subscription, and when Chainlink-sourced oracle data is preferred over off-chain estimates.

## Known failure modes

- Insufficient USDC balance or failed x402 payment results in payment error and no oracle data returned
- Oracle upstream provider unavailable returns degraded or empty upstreamResponse
- Malformed request body may result in 400-level error
- Network congestion on Base could delay settlement and response

## How this service works

A portfolio of live Virtuals Protocol ACP 2.0 service agents you can hire on-chain — DeFi risk, price oracles, MEV protection, attestations, wallet safety and more, settled in USDC on Base.

## Output

Returns a JSON object with status 'ok', the target bot name ('TheChainlinkBot'), the offering name ('gas_oracle'), the billed price in USDC (0.05), and an upstreamResponse field containing the gas oracle result data from the underlying oracle provider.

## Request schema (JSON Schema)

```json
{
 "properties": {
  "input": {
   "properties": {
    "body": {
     "type": "object",
     "required": [],
     "properties": {}
    }
   }
  },
  "output": {
   "properties": {
    "example": {
     "status": "ok",
     "targetBot": "TheChainlinkBot",
     "offeringName": "gas_oracle",
     "billedPriceUsdc": 0.05,
     "upstreamResponse": {
      "note": "offering result JSON"
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/acp-metabot-gas-oracle-on-chain-gas-price-feed-via-butlerbridgebot-4134b426/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.acp-metabot.dev](https://www.zero.xyz/host/api.acp-metabot.dev/llms.txt)