# apiacre.com Web Performance Profiler

> apiacre.com Web Performance Profiler is a paid API for AI agents from apiacre.com, paid per call via x402, $0.025/call, status unknown (last checked 2026-09-15).

Measures response timing, payload size, compression, and caching behavior for a given web URL via HTTP request profiling.

## Facts

- Endpoint: POST https://apiacre.com/v1/web/performance-profile
- Price: $0.025/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/apiacre-com-web-performance-profiler-b5acc239
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8f7x9u5BHZbWtfyQ5m-Or

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 apiacre-com-web-performance-profiler-b5acc239 -d '<json body>'
```

Example prompt: Can you profile the performance of https://api.myapp.com/health — I want to see the response time, payload size, whether it's compressed, and what caching headers it returns?

## When to prefer this

Choose this endpoint when you need objective, server-side HTTP performance measurements for a specific URL — including timing, size, compression, and caching — rather than browser-based or synthetic frontend metrics. It is especially useful for auditing API endpoints, verifying CDN behavior, or establishing performance baselines without running your own infrastructure.

## Known failure modes

- Target URL is unreachable or returns a non-200 status — endpoint may return an error with the HTTP status code received
- Invalid or malformed URL input — returns a validation error
- Target server takes too long to respond causing a timeout
- URL points to a non-HTTP resource or unsupported protocol
- Rate limiting or firewall on the target server blocks the profiling request

## How this service works

Measure website response latency, payload size, compression, caching, and performance signals for a public URL.

## Output

Returns structured metrics including response timing (e.g. TTFB, total duration), response payload size (raw and compressed), compression encoding used (e.g. gzip, brotli, none), and cache-related HTTP headers (e.g. Cache-Control, ETag, Expires).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "title": "Url",
   "format": "uri",
   "maxLength": 2083,
   "minLength": 1
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {
   "url": "https://example.com/",
   "bytes": 559,
   "status": 200,
   "elapsedMs": 40,
   "compression": "gzip",
   "cacheControl": null,
   "serverTiming": null
  },
  "meta": {
   "cached": false,
   "sources": [],
   "warnings": [],
   "duration_ms": 42,
   "next_actions": []
  },
  "service": "web.performance-profile",
  "version": "1",
  "request_id": "018f1f54-7f38-7ba2-8dc3-5f90272d9f1a"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/apiacre-com-web-performance-profiler-b5acc239/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from apiacre.com](https://www.zero.xyz/host/apiacre.com/llms.txt)