# Agent Embassy Compute Spot Price Feed

> Agent Embassy Compute Spot Price Feed is a paid API for AI agents from aemb.pro, paid per call via x402, $0.25/call, status unknown (last checked 2026-10-11).

Returns a live snapshot of the cheapest rentable GPU/compute ask prices per hardware class, in USD per hour, across spot markets.

## Facts

- Endpoint: GET https://aemb.pro/v1/markets/compute/spot?utm_source=zero.xyz
- Price: $0.25/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-embassy-compute-spot-price-feed-2a623817
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ksXcOI9i2xKa47PsHgUK0

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 agent-embassy-compute-spot-price-feed-2a623817
```

Example prompt: What's the cheapest spot-market ask price right now for an H100 SXM and an RTX 4090, in USD per hour?

## When to prefer this

Use this endpoint when you need a real-time, cross-market snapshot of the cheapest available GPU spot prices by hardware class before making a compute provisioning or cost decision. It is ideal for agents that need to compare prices across GPU tiers (e.g. H100 vs RTX 4090) without maintaining their own market feeds. Since prices are ephemeral asks, always re-query immediately before acting on the data.

## Known failure modes

- Payment not provided or insufficient — x402 payment of $0.25 USDC on Base or Arbitrum One required per call
- Stale or missing upstream data — observed_at may lag real market conditions
- No asks available for a given class — hardware class key may be absent from response
- Network or upstream aggregation failure — service may return an error or empty response

## How this service works

Compute market snapshot — live spot prices: cheapest rentable ask per class in USD/hour. $0.25 per query via x402 USDC on Base or Arbitrum One. Upstream sources are internal and never named. Asks are ephemeral — re-observe before any decision.

## Output

A JSON object containing the UTC timestamp of the observation, a note that prices are ephemeral asks and not guaranteed delivery costs, and a map of GPU hardware classes (e.g. h100_sxm, rtx_4090) to their current cheapest ask price in USD per hour.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "note": "prices are ephemeral asks, not delivered-cost guarantees",
  "observed_at": "2026-09-21T00:00:00Z",
  "cheapest_ask_usd_per_gpu_hour": {
   "h100_sxm": 1.79,
   "rtx_4090": 0.14
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-embassy-compute-spot-price-feed-2a623817/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from aemb.pro](https://www.zero.xyz/host/aemb.pro/llms.txt)