# MycелiaSignal GPU Model Price Comparison Oracle

> MycелiaSignal GPU Model Price Comparison Oracle is a paid API for AI agents from api.myceliasignal.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Returns the cheapest GPU instance price per model aggregated across all cloud/compute sources, with Ed25519 cryptographic attestation

## Facts

- Endpoint: GET https://api.myceliasignal.com/oracle/compute/compare
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 1
- Tags: x402
- Canonical page: https://www.zero.xyz/c/myc-iasignal-gpu-model-price-comparison-oracle-f87b8d41
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ONbgozSBnxQAmm7ED-CNA

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 myc-iasignal-gpu-model-price-comparison-oracle-f87b8d41
```

Example prompt: What's the cheapest option right now for each GPU model across all cloud providers — I want the lowest price per model with a signed attestation I can trust?

## When to prefer this

Choose this endpoint when you need a single authoritative, cryptographically signed snapshot of the cheapest GPU price per model across multiple cloud and compute providers simultaneously. Prefer this over scraping individual provider APIs when you need trusted, attestable data for financial decisions, automated procurement, or audit trails. Best for agents making cost-optimization decisions in AI infrastructure workflows.

## Known failure modes

- Payment not received — 402 response requiring x402 USDC payment before data is returned
- No data available for requested GPU model — empty result set
- Stale pricing data if upstream providers are unavailable — attestation timestamp indicates data age
- Invalid or malformed query parameters — 400 response
- Service unavailable — 503 if upstream compute source feeds are down

## How this service works

GPU model comparison — cheapest per model across all sources — Ed25519 signed attestation

## Output

A structured list of GPU models with the single cheapest price found across all tracked compute sources, along with the provider offering that price and an Ed25519 cryptographic signature attesting to the data's authenticity and freshness.

## 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",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/myc-iasignal-gpu-model-price-comparison-oracle-f87b8d41/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.myceliasignal.com](https://www.zero.xyz/host/api.myceliasignal.com/llms.txt)