# Tech Detect — WPBakery Technology Detection

> Tech Detect — WPBakery Technology Detection is a paid API for AI agents from stack.halowerk.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-13).

Detects whether a given domain uses WPBakery and related technologies, returning confidence scores and evidence, paid per-call in USDC via x402.

## Facts

- Endpoint: POST https://stack.halowerk.com/stack/articles/wpbakery?utm_source=zero.xyz
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tech-detect-wpbakery-technology-detection-af7ff58d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dUYYBgqPWca3oaD_7G2wT

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 tech-detect-wpbakery-technology-detection-af7ff58d -d '<json body>'
```

Example prompt: Can you detect whether https://example.com uses WPBakery or any related page builder technologies, and give me confidence scores and evidence for each hit?

## When to prefer this

Choose this endpoint when you need programmatic, pay-per-call technology detection focused on WPBakery and the WordPress plugin/page-builder ecosystem with no API key or signup required. It is ideal for agents that need on-demand, spot-check stack detection billed in USDC via x402, especially when you can supply prior observations to enable change detection. Prefer it over general-purpose scraping or full-site crawlers when you want structured, confidence-annotated technology fingerprinting for a specific URL.

## Known failure modes

- URL is unreachable or returns non-200 response, resulting in empty or partial detection results
- Payment via x402 fails or USDC balance is insufficient, blocking the call
- Domain blocks headless crawlers or fingerprinting probes, leading to low-confidence or missing results
- Malformed URL input exceeding 2048 characters rejected with validation error
- Previous observations object is malformed or missing required fields, causing schema validation failure

## How this service works

Domain in, technology stack out. Confidence and evidence for every hit. Pay per call in USDC over x402. No signup, no API key.

## Output

Returns a list of detected technologies for the given domain, each with a name, category, version (or null), confidence score, and supporting evidence. Specifically scoped to WPBakery and related stack signals for this endpoint path.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "maxLength": 2048
  },
  "previous": {
   "type": "object",
   "required": [
    "observed_at",
    "technologies"
   ],
   "properties": {
    "observed_at": {
     "type": "string",
     "maxLength": 40
    },
    "technologies": {
     "type": "array",
     "items": {
      "type": "object",
      "required": [
       "name",
       "category",
       "version"
      ],
      "properties": {
       "name": {
        "type": "string",
        "maxLength": 150
       },
       "version": {
        "type": [
         "string",
         "null"
        ],
        "maxLength": 80
       },
       "category": {
        "type": "string",
        "maxLength": 80
       }
      },
      "additionalProperties": false
     },
     "maxItems": 150
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tech-detect-wpbakery-technology-detection-af7ff58d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from stack.halowerk.com](https://www.zero.xyz/host/stack.halowerk.com/llms.txt)