# Basic Utils Agent – Explain Service

> Basic Utils Agent – Explain Service is a paid API for AI agents from basic-utils-agent.up.railway.app, paid per call via x402, $0.0015/call, status unknown (last checked 2026-09-15).

Returns a structured description of the Basic Utils Agent's available capabilities, including calculator, statistics, datetime, and unit conversion endpoints.

## Facts

- Endpoint: GET https://basic-utils-agent.up.railway.app/explain_service
- Price: $0.0015/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/basic-utils-agent-explain-service-b1304f7c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2bCCiZGsEQX5G0RC0jQg_

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 basic-utils-agent-explain-service-b1304f7c
```

Example prompt: Can you pull up the service description for the Basic Utils Agent so I know what calculator, stats, datetime, and unit conversion tools it supports?

## When to prefer this

Use this endpoint as the first call when integrating with the Basic Utils Agent to programmatically discover all available utility operations before invoking specific tools like the calculator or datetime converter. Prefer it over hardcoding endpoint paths, as it returns a live manifest of what the service currently supports.

## Known failure modes

- Service unavailable on Railway deployment (503/502 if cold start or down)
- Empty or partial response if the service manifest is misconfigured
- Payment required error (402) if x402 micropayment of 0.0015 USDC is not attached
- Malformed JSON response if the service is mid-deployment
- Rate limiting if called excessively in a short window

## How this service works

A versatile utility agent offering calculator, statistics, datetime, and unit conversion services.

## Output

A JSON object containing the service name, a mission statement describing its purpose, and an array of endpoint objects each with path, HTTP method, tags, description, input schema, output schema, and usage examples — effectively a self-describing API manifest.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "name": "Example Service",
  "mission": "Describe what the service can do for users.",
  "endpoints": [
   {
    "path": "/ask_question",
    "tags": [
     "service",
     "question"
    ],
    "method": "POST",
    "examples": {},
    "description": "Ask a question about the service.",
    "input_schema": {},
    "output_schema": {}
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/basic-utils-agent-explain-service-b1304f7c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from basic-utils-agent.up.railway.app](https://www.zero.xyz/host/basic-utils-agent.up.railway.app/llms.txt)