# the402.ai Website Performance Analysis

> the402.ai Website Performance Analysis is a paid API for AI agents from api.the402.ai, paid per call via x402, $0.368/call, status down (last checked 2026-09-15).

Purchases and triggers an AI-powered website performance analysis service on the402.ai marketplace

## Facts

- Endpoint: POST https://api.the402.ai/v1/services/svc_303b567c0d624da0/purchase
- Price: $0.368/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-the402-ai-5e44b61b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_NRwxJfILBlP71QzeTMn6b

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 api-the402-ai-5e44b61b -d '<json body>'
```

Example prompt: Can you run a full website performance analysis on https://mycompany.com and tell me what's slowing it down and what I should fix?

## When to prefer this

Choose this endpoint when you need a structured, AI-generated performance audit of a website and are willing to pay per-analysis. Best suited for one-off performance snapshots rather than continuous monitoring. Prefer this over generic tools when you want actionable recommendations bundled with raw metrics in a single call.

## Known failure modes

- Invalid or unreachable URL returns an error before analysis begins
- Payment of 0.368 USDC fails or is rejected, blocking service delivery
- Website blocks automated crawlers, resulting in incomplete analysis
- Job times out if the target site is extremely slow or unresponsive
- Service returns a job ID that must be polled via the job status endpoint before results are available

## How this service works

Purchase: Website Performance Analysis

## Output

A detailed website performance analysis report including speed metrics, performance scores, identified bottlenecks, and actionable optimization recommendations for the submitted website URL.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "id"
 ],
 "properties": {
  "id": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-the402-ai-5e44b61b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.the402.ai](https://www.zero.xyz/host/api.the402.ai/llms.txt)