Link Extraction

List links found in a page's initial HTML, with anchor text and rel attributes. Links added by JavaScript can be missed.

Pay by wallet (x402) link-extract

Example

Input

{
  "url": "https://strale.dev"
}

Answer

{
  "links": [],
  "filter": "both",
  "source_url": "https://strale.dev",
  "total_links": 0
}

Inputs

Field	Type	Required	What it is
`url`	string	Yes	URL to extract links from
`filter`	string	No	internal, external, or both (default)

Output fields

How reliably each field appears in a successful answer.

Field	Type	Appears
`links`	array	Always (present in every successful answer)
`source_url`	string	Always (present in every successful answer)
`total_links`	integer	Always (present in every successful answer)

How to call it

The same tool through each route. MCP clients reach it through Strale’s server at https://api.strale.io/mcp; the call below is what the agent sends.

# Needs an API key. max_price_cents caps what this call may cost.
curl -X POST https://api.strale.io/v1/do \
  -H "Authorization: Bearer $STRALE_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
    "capability_slug": "link-extract",
    "inputs": {
      "url": "https://strale.dev"
    },
    "max_price_cents": 3
  }'

{
  "tool": "strale_execute",
  "arguments": {
    "slug": "link-extract",
    "inputs": {
      "url": "https://strale.dev"
    },
    "max_price_cents": 3
  }
}

import { Strale } from "straleio";

const strale = new Strale({ apiKey: process.env.STRALE_API_KEY! });
const result = await strale.do({
  capability_slug: "link-extract",
  inputs: {
    "url": "https://strale.dev"
  },
  max_price_cents: 3,
});

import os
from straleio import Strale, DoRequest

strale = Strale(api_key=os.environ["STRALE_API_KEY"])
result = strale.do(DoRequest(
    capability_slug="link-extract",
    inputs={
        "url": "https://strale.dev",
    },
    max_price_cents=3,
))

# No account. The first request answers 402 with the price in USDC;
# an x402 client pays it from your wallet and repeats the request.
curl -i 'https://api.strale.io/x402/v2/link-extract?url=https%3A%2F%2Fstrale.dev'

Limitations

JavaScript-generated links can be missing
Extracts links from static HTML — JavaScript-rendered links (SPAs, lazy-loaded content) may not be captured
What to do instead: Check the rendered page manually for links added by JavaScript.
Pages are limited to 16 MiB of HTML
Pages with more than 16 MiB of HTML are refused with a caller_input error naming the input field. The call is not charged, and the page is not retried through another fetch or rendering route.