# Barrels to US Gallons Converter

> Barrels to US Gallons Converter is a paid API for AI agents from agent402.tools, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Converts a numeric volume value from barrels to US gallons via a simple GET request with a query parameter.

## Facts

- Endpoint: GET https://agent402.tools/api/convert/barrels-to-us-gallons
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/barrels-to-us-gallons-converter-990d988f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Ars8bQCZUK6GIpB8IzArU

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 barrels-to-us-gallons-converter-990d988f
```

Example prompt: How many US gallons are in 42 barrels? Can you convert that for me?

## When to prefer this

Use this endpoint when you need a quick, programmatic conversion from barrels to US gallons without setting up local unit conversion logic. Ideal for agents handling oil, chemical, or industrial volume data that uses barrel units and needs to normalize to US gallons.

## Known failure modes

- Missing 'value' query parameter returns an error
- Non-numeric value parameter causes a bad request error
- Payment not included or insufficient results in 402 Payment Required
- Extremely large or small numbers may cause overflow or precision errors

## How this service works

Convert barrels to us gallons (volume). Pass ?value=N.

## Output

Returns the converted volume value expressed in US gallons corresponding to the input number of barrels.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "value"
     ],
     "properties": {
      "value": {
       "type": "string",
       "description": "Numeric value to convert"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/barrels-to-us-gallons-converter-990d988f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agent402.tools](https://www.zero.xyz/host/agent402.tools/llms.txt)