# Strale URL Metadata Extractor

> Strale URL Metadata Extractor is a paid API for AI agents from api.strale.io, paid per call via x402, $0.0324/call, status unknown (last checked 2026-10-09).

Extracts all metadata from a URL including Open Graph tags, Twitter cards, JSON-LD, favicon, canonical URL, RSS feeds, and robots directives

## Facts

- Endpoint: GET https://api.strale.io/x402/meta-extract?utm_source=zero.xyz
- Price: $0.0324/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-09
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-strale-io-c7f520eb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_UB6xnPy4c8HCAy7nrJviL

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-strale-io-c7f520eb
```

Example prompt: Can you pull all the metadata from https://stripe.com — I need the Open Graph tags, any JSON-LD structured data, the canonical URL, favicon, and any RSS feeds listed on the page.

## When to prefer this

Use this endpoint when you need to comprehensively extract all standard web metadata from a single URL in one call — especially when you need a combination of Open Graph, Twitter cards, JSON-LD, and feed discovery simultaneously rather than scraping manually. Ideal for link preview generation, SEO auditing, content enrichment pipelines, or social sharing metadata validation.

## Known failure modes

- URL is unreachable or returns non-200 status — extraction fails with error
- URL points to a non-HTML resource (PDF, image) — limited or no metadata returned
- Page uses JavaScript rendering — statically served metadata only is captured
- Malformed or missing URL query parameter — returns 400 bad request
- Rate limit or timeout on target URL — extraction may return partial results

## How this service works

Extract all metadata from a URL: Open Graph, Twitter cards, JSON-LD, favicon, canonical URL, RSS feeds, robots directives.

## Output

Returns a structured object containing all metadata found at the given URL: Open Graph properties (og:title, og:description, og:image, etc.), Twitter card tags, JSON-LD structured data objects, favicon URL, canonical URL, RSS/Atom feed URLs, and robots meta directives.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "url": "https://example.com"
  }
 }
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "url"
 ],
 "properties": {
  "url": {
   "type": "string",
   "description": "URL to extract metadata from"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "og": {
  "type": "object"
 },
 "feeds": {
  "type": "array"
 },
 "title": {
  "type": "string"
 },
 "json_ld": {
  "type": "array"
 },
 "twitter": {
  "type": "object"
 },
 "description": {
  "type": "string"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-strale-io-c7f520eb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.strale.io](https://www.zero.xyz/host/api.strale.io/llms.txt)