# Tarnak GPU Report API

> Tarnak GPU Report API is a paid API for AI agents from api.capousd-student-tools.me, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-31).

Returns live GPU rental pricing, cheapest available offer, and cost estimates for a specified GPU model across cloud providers.

## Facts

- Endpoint: GET https://api.capousd-student-tools.me/v1/gpu/report?utm_source=zero.xyz
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tarnak-gpu-report-api-59d1e953
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_aIilF6ttiS3RzPzLg2qzT

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 tarnak-gpu-report-api-59d1e953
```

Example prompt: What's the cheapest A100 GPU rental available right now, and what would it cost me to run it for 24 hours? Show me a price summary including min, max, and median rates across providers.

## When to prefer this

Use this endpoint when you need real-time GPU rental pricing across cloud marketplaces (e.g., vast.ai) for a specific model, want to compare pricing tiers, or need a cost estimate before committing to a GPU job. Prefer this over static pricing pages when you need live offer counts, uptime scores, and regional breakdowns.

## Known failure modes

- No offers available for the requested GPU model — available field returns false
- Invalid GPU model name returns empty or null results
- hours parameter out of range (must be 1–720) returns validation error
- Rate limiting if free daily quota (10/IP/day) is exceeded without payment
- Payment failure via x402 results in 402 response blocking access

## How this service works

Keyless pay-per-call APIs for AI agents on Base: token risk verdict, rug/honeypot report, gas estimate, URL-to-markdown and more. x402 v2, USDC, no API key or signup. 10 free verdicts per IP per day.

## Output

A JSON object containing: the cheapest live GPU offer (price, region, provider, GPU model, uptime score), a price summary (min, max, median, offer count), availability status, an estimated total cost in USD, a human-readable recommendation, and a timestamp of when data was fetched.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "hours": {
       "type": "integer",
       "default": 24,
       "maximum": 720,
       "minimum": 1
      },
      "model": {
       "type": "string",
       "description": "GPU model filter, e.g. A100."
      },
      "format": {
       "enum": [
        "json",
        "markdown"
       ],
       "type": "string",
       "default": "json"
      },
      "compare": {
       "type": "string",
       "description": "Optional comma-separated models, e.g. H100,RTX 4090."
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "as_of": "2026-10-28T15:08:03+00:00",
  "hours": 24,
  "model": "A100",
  "history": null,
  "cheapest": {
   "as_of": "2026-10-28T15:08:03+00:00",
   "region": "California, US",
   "network": "vast.ai",
   "gpu_model": "A100 SXM4",
   "uptime_30d": 0.9735,
   "provider_id": "vast:513108:A100 SXM4:1",
   "price_usd_hr": 0.4006
  },
  "available": true,
  "price_summary": {
   "max_usd_hr": 0.6304,
   "min_usd_hr": 0.4006,
   "offer_count": 3,
   "median_usd_hr": 0.4015
  },
  "recommendation": "Cheapest live offer ... confirm availability before paying.",
  "report_version": 1,
  "estimated_cost_usd": 9.61
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tarnak-gpu-report-api-59d1e953/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.capousd-student-tools.me](https://www.zero.xyz/host/api.capousd-student-tools.me/llms.txt)