# Tech Detect Batch — Technology Stack Detection

> Tech Detect Batch — Technology Stack Detection is a paid API for AI agents from stack.halowerk.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-12).

Accepts a batch of URLs and returns the detected technology stack for each domain, including confidence scores and evidence, paid per call via x402 USDC.

## Facts

- Endpoint: POST https://stack.halowerk.com/stack/batch?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tech-detect-batch-technology-stack-detection-81fe6ab0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_UgOX2GYIFQrdPfGlWTkyX

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-batch-technology-stack-detection-81fe6ab0 -d '<json body>'
```

Example prompt: Can you detect the technology stacks for these 5 domains — shopify.com, vercel.com, notion.so, linear.app, and figma.com — and tell me what frameworks, libraries, and CDNs each one is using with confidence scores?

## When to prefer this

Use this endpoint when you need bulk technology fingerprinting across multiple domains (2–100) in a single paid call, especially when you want confidence scores and evidence per detected technology. Prefer this over single-URL alternatives when doing competitor analysis, lead enrichment, or portfolio audits. The pay-per-call x402 model is ideal for agents that need on-demand detection without managing API keys or subscriptions.

## Known failure modes

- URL array has fewer than 2 or more than 100 items — request rejected
- Invalid URI format in the urls array — validation error
- Domain is unreachable or blocks crawling — partial or missing results for that domain
- Payment not received or insufficient USDC balance — x402 payment required error
- Stale cache returned when refresh not set — may not reflect recent changes

## 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

For each submitted URL, the agent receives the detected technology stack including identified frameworks, libraries, CMS platforms, CDN providers, font services, and other web technologies, each accompanied by a confidence score and supporting evidence. Results may be freshly crawled or returned from cache depending on the refresh flag.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "urls": {
   "type": "array",
   "items": {
    "type": "string",
    "format": "uri"
   },
   "maxItems": 100,
   "minItems": 2
  },
  "refresh": {
   "type": "boolean"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tech-detect-batch-technology-stack-detection-81fe6ab0/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)