# Locus Parallel Extract

> Locus Parallel Extract is a paid API for AI agents from parallel.x402.paywithlocus.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Extracts and focuses relevant content from 1–20 URLs in a single pay-per-use call, optionally guided by an objective and search queries to return concise excerpts tailored to a consuming model

## Facts

- Endpoint: POST https://parallel.x402.paywithlocus.com/parallel/extract
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/locus-parallel-extract-4f741312
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FgnaUchdS0wLt0O9OBTQ-

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 locus-parallel-extract-4f741312 -d '<json body>'
```

Example prompt: Fetch and extract the relevant content from these three URLs — https://example.com/article1, https://example.com/article2, and https://example.com/article3 — focusing on information about electric vehicle battery technology, and keep the total output under 8000 characters.

## When to prefer this

Choose this endpoint when you need to fetch and extract focused content from multiple URLs in a single request, especially when you want to filter the returned text by a topic objective or search queries to reduce noise for an LLM. It is well-suited for building AI context windows from cited sources, competitive research, or any workflow that needs relevant excerpts from a batch of web pages rather than full-page dumps.

## Known failure modes

- URL unreachable or returns non-200 status — excerpt for that URL may be empty or error-flagged
- URLs behind paywalls or login walls return little or no usable content
- Total character budget too small to include meaningful content from all URLs
- Invalid URL format causes request rejection
- Rate limiting or network timeouts on slow-loading pages
- Payment failure via x402 protocol blocks the request entirely

## How this service works

Locus public pay-per-use API

## Output

Returns focused text excerpts from each fetched URL, filtered and trimmed according to the provided objective, search queries, and character budget. Content volume and relevance are shaped by the objective and client model hint; full page content can optionally be returned if advanced settings enable it.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "urls": {
   "type": "array",
   "items": {
    "type": "string"
   }
  },
  "objective": {
   "type": "string"
  },
  "client_model": {
   "type": "string"
  },
  "search_queries": {
   "type": "array",
   "items": {
    "type": "string"
   }
  },
  "max_chars_total": {
   "type": "number"
  },
  "advanced_settings": {
   "type": "object",
   "additionalProperties": true
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/locus-parallel-extract-4f741312/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from parallel.x402.paywithlocus.com](https://www.zero.xyz/host/parallel.x402.paywithlocus.com/llms.txt)