# SperaxOS Giza Model Performance API

> SperaxOS Giza Model Performance API is a paid API for AI agents from chat.sperax.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-11).

Fetches AI/ML model performance metrics for a specified model ID via Giza, payable per-request with USDC on Base

## Facts

- Endpoint: POST https://chat.sperax.io/api/x402/tools/giza/getModelPerformance?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/speraxos-giza-model-performance-api-0976e63b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_c3reD3vGvsxA2tfsaShvg

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 speraxos-giza-model-performance-api-0976e63b -d '<json body>'
```

Example prompt: Can you pull the performance metrics for Giza model ID 'defi-yield-predictor-v2' on SperaxOS so I can see how well it's been doing?

## When to prefer this

Choose this endpoint when you need to programmatically retrieve performance metrics for a specific Giza AI/ML model in a DeFi context, without needing an API key, paying only $0.001 USDC per call via the x402 protocol. Prefer this over manual Giza dashboards when building automated model monitoring pipelines or agent-driven evaluation workflows.

## Known failure modes

- Invalid or unknown modelId returns an error or empty result
- Payment failure if insufficient USDC balance on Base
- Model ID exists but has no performance data yet
- Network timeout or service unavailability from upstream Giza API
- Malformed request body causes validation error

## How this service works

AI-powered DeFi intelligence APIs payable via the x402 HTTP payment protocol. No API key required — pay per request with USDC on Base. Identity-only (SIWX) endpoints are free for wallets with an agentcash identity.

## Output

Returns structured performance metrics for the specified Giza AI model, likely including accuracy scores, evaluation benchmarks, model health indicators, and performance history relevant to DeFi prediction tasks.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "modelId": {
   "type": "string",
   "description": "The model ID to fetch performance data for"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/speraxos-giza-model-performance-api-0976e63b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from chat.sperax.io](https://www.zero.xyz/host/chat.sperax.io/llms.txt)