Extract Any URL via Scavio

Read any web page and get it back as clean Markdown, plain text, or raw HTML. This is the read-a-page primitive: one URL in, page content out.

Extract is not a platform - it is a core endpoint. There is no namespace, no per-site parser and no site-specific parameters. It works on any http(s) URL.

When to trigger

Use this skill when the user asks to:

• Read, summarise, or quote a specific web page
• Turn a URL into Markdown or plain text for an LLM prompt or a RAG chunk
• Pull an article, docs page, changelog, pricing page or blog post into the conversation
• Fetch a page that blocked a plain HTTP request
• Grab the raw HTML of a page to parse it yourself

This is usually the right first tool whenever a user pastes a link and asks a question about what is on it.

Many pages from one site, or a long list of URLs? Do not loop this endpoint. Use the website-crawler-api skill: POST /api/v1/extract/map lists a site's URLs from its sitemap for 1 credit, POST /api/v1/extract/crawl crawls a whole site to Markdown as one job, and POST /api/v1/extract/batch extracts up to 1,000 URLs as one job, both billed per successful page at this same tier price. See Website Crawler API.

Setup

Get a free API key at scavio.dev (50 free credits to get started, no card required):

export SCAVIO_API_KEY=sk_live_your_key

If you do not have a key yet

An agent running this skill without SCAVIO_API_KEY set will get 401 on every call below. The whole path from nothing to a working key is self-serve:

1. Sign up at dashboard.scavio.dev - email or Google, no card required.
2. A key is created for the account automatically at signup. It is on the dashboard under API Keys, ready to copy.
3. A new account starts with 50 credits. Endpoints in this skill cost 1 credit each unless the table below says otherwise.

When the balance runs out the API answers 402 with a JSON body carrying billing_url. Topping up needs no code change - the same key keeps working. The smallest purchase is 2,500 credits for $25, and monthly plans work out cheaper per credit if the usage is steady rather than one-off.

Every request is a POST with a JSON body and:

Authorization: Bearer $SCAVIO_API_KEY

Endpoint

Base URL: https://api.scavio.dev.

No pagination - one URL, one response.

Cost is a function of the body

Extract is tier-priced, so there is no single "costs N credits" answer. The mode parameter sets the price:

advanced costs the same as normal, so reach for it freely on any page that renders client-side. ultra is the only step that doubles the price - escalate to it only after normal or advanced came back empty or blocked.

Billing is charge-on-success. Only a 2xx extraction is billed. A dead link, a bot wall or a timeout costs nothing, so escalating a failed fetch to a higher tier does not stack charges for the failures.

Parameters

What the three formats actually are

• markdown (default) - a readability extraction: the article content, cleaned of navigation and chrome, as Markdown. This is what you want for an LLM prompt or a RAG chunk.
• html - the raw page exactly as fetched. Use it when you intend to parse the DOM yourself.
• text - that same readability Markdown, flattened to plain text. The flattener is deliberately conservative about CommonMark, so snake_case identifiers, __dunders__ and inline code survive intact rather than being eaten as emphasis markers.

URL guard

http and https only. A bare host is upgraded to https for you. Loopback, private, link-local and cloud-metadata hosts are rejected with a 400 - the fetch happens server-side, so pointing this at localhost would only ever reach someone else's loopback, not the user's.

Examples

import requests

BASE = "https://api.scavio.dev"
# Your key from https://scavio.dev. Load it from your environment or secret
# store in real code - keep it out of source control.
API_KEY = "sk_your_key_here"
HEADERS = {"Authorization": f"Bearer {API_KEY}"}

# 1. The common case: a page as clean Markdown, 1 credit
page = requests.post(f"{BASE}/api/v1/extract", headers=HEADERS,
    json={"url": "https://example.com/pricing"}).json()

print(page["data"]["content"][:500], page["data"]["content_length"])

# 2. Plain text for an embedding pipeline, still 1 credit
plain = requests.post(f"{BASE}/api/v1/extract", headers=HEADERS,
    json={"url": "https://example.com/blog/post", "format": "text"}).json()

# 3. A client-rendered page: advanced renders JavaScript and STILL costs 1 credit
spa = requests.post(f"{BASE}/api/v1/extract", headers=HEADERS,
    json={"url": "https://example.com/app/docs", "mode": "advanced"}).json()

# 4. Raw HTML to parse yourself
raw = requests.post(f"{BASE}/api/v1/extract", headers=HEADERS,
    json={"url": "https://example.com", "format": "html"}).json()

Escalate tiers only on failure. Failed fetches are not billed, so this ladder costs 1 credit on success at any step and 2 only if it has to reach ultra:

def read(url, format="markdown"):
    """normal (1cr) -> advanced (1cr) -> ultra (2cr). Only the successful call is billed."""
    for mode in ("normal", "advanced", "ultra"):
        r = requests.post(f"{BASE}/api/v1/extract", headers=HEADERS,
                          json={"url": url, "format": format, "mode": mode})
        if r.status_code == 200:
            data = r.json()["data"]
            if data["content_length"]:
                return data
        if r.status_code == 400:
            break            # bad or blocked URL - a higher tier will not fix it
    return None

Response shape

The envelope is { data, response_time, credits_used, credits_remaining }, and data is:

{
  "url": "https://example.com/pricing",
  "format": "markdown",
  "mode": "normal",
  "content": "# Pricing\n\nSimple, usage-based pricing...",
  "content_length": 4821
}

url, format and mode echo what was actually used, so you can log which tier paid for the result. credits_used in the envelope tells you whether the call cost 1 or 2.

Guardrails

• Never quote a flat price for this endpoint. It is 1 credit for normal and advanced and 2 for ultra. If you tell the user what a run will cost, price it by mode.
• Start at normal. Escalate to advanced for a page that renders client-side, and to ultra only when the cheaper tiers came back blocked or empty - that is the only step that doubles the cost.
• Do not retry a failed fetch at the same tier more than once. Failures are free, but they are also usually deterministic; change the tier instead.
• Use markdown or text for anything going into a model prompt. html is for parsing, and it burns context.
• A short content_length on a 200 usually means a bot wall or a client-rendered shell, not an empty page. Escalate the tier before reporting the page as blank.
• Never invent page content. If the extraction is empty, say the page could not be read rather than answering from memory about what the URL probably says.
• Attribute what you quote: keep the source URL alongside any content you surface.
• Respect the user's intent about what to fetch. This reads publicly reachable pages only; it does not log in, submit forms, or bypass a paywall.

Failure handling

• 400 means the URL was rejected: a non-http(s) scheme, a malformed URL, or a loopback / private / link-local / metadata host. Not billed. A higher mode will not fix it.
• 401 means the API key is invalid or missing. Check SCAVIO_API_KEY.
• 404 means the page does not exist upstream. Not billed.
• 429 means rate or usage limit exceeded. Wait before retrying. See rate limits.
• 502 / 503 mean the fetch failed or upstream is unavailable. Not billed - retry once, then escalate mode rather than hammering the same tier.
• If SCAVIO_API_KEY is not set, prompt the user to export it before continuing.

Python SDK

langchain-scavio has no extract tool - use the Scavio SDK directly. Extract is a top-level method, not a namespace: client.extract(...), never client.extract.extract(...).

pip install scavio==0.15.0

from scavio import ScavioClient

client = ScavioClient()  # reads SCAVIO_API_KEY

page = client.extract("https://example.com/pricing")
plain = client.extract("https://example.com/blog/post", format="text")
spa = client.extract("https://example.com/app/docs", mode="advanced")   # still 1 credit

JavaScript / TypeScript:

npm install scavio@0.15.0

import { Scavio } from "scavio";

const scavio = new Scavio(); // reads SCAVIO_API_KEY
const page = await scavio.extract({ url: "https://example.com/pricing" });
const spa = await scavio.extract({ url: "https://example.com/app/docs", mode: "advanced" });