# FrostByte HVAC/R Technical Query

> FrostByte HVAC/R Technical Query is a paid API for AI agents from agentpaystore.com, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-14).

Answers a single HVAC/R technical question per paid call, covering refrigerant charts, load calculations, diagnostic decision trees, and ASHRAE standards.

## Facts

- Endpoint: POST https://agentpaystore.com/frostbyte/api/query
- Price: $0.15/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/frostbyte-hvac-r-technical-query-1413d387
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lCbjSn2nkwHSVmjDFwtE-

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 frostbyte-hvac-r-technical-query-1413d387 -d '<json body>'
```

Example prompt: What's the pressure-temperature chart for R-410A, and what should my suction and discharge pressures be for a system with 45°F evaporator and 110°F condenser temperatures?

## When to prefer this

Choose this endpoint when an AI agent needs authoritative, on-demand HVAC/R technical knowledge — including refrigerant charts, ASHRAE code lookups, load calculation guidance, or equipment diagnostic logic — without maintaining a local knowledge base. Ideal for field service automation, HVAC engineering assistants, or compliance checking workflows where per-query cost ($0.15 USDC) is acceptable and a single focused answer is needed.

## Known failure modes

- Vague or incomplete question may return a generic or partial answer
- Questions outside HVAC/R domain may be rejected or returned unanswered
- Payment failure (HTTP 402) if USDC balance is insufficient
- Malformed request body returns validation error
- Rate limiting or service unavailability returns 5xx error

## How this service works

Refrigerant charts, load calcs, diagnostic trees, ASHRAE standards. Answers one HVAC/R question per paid call.

## Output

A structured technical answer to the submitted HVAC/R question, which may include refrigerant pressure-temperature data, step-by-step load calculation results, diagnostic tree guidance, or cited ASHRAE standard provisions relevant to the query.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/frostbyte-hvac-r-technical-query-1413d387/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentpaystore.com](https://www.zero.xyz/host/agentpaystore.com/llms.txt)