Prefetch

Web research API, answers in your JSON shape

Ask the web a question and get a sourced answer back as JSON.

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Free to start
Free Plan
100 answers/mo

Nulls, not guesses.

Research gathers evidence first, and anything it could not establish comes back null.

  1. Your shape, not ours

    Pass an example answer as json_format and the result keeps exactly its keys and types.

  2. Sources for every answer

    Each response lists the URLs it read, and links it never visited are removed.

  3. Fast or thorough

    fast answers in up to 30 seconds, ultra reads more sources in up to 50.

answers

json_format

{ "founders": [""], "founded_year": 0,

"headquarters": "" }

json_content

{ "founders": ["Patrick Collison",

"John Collison"],

"founded_year": 2010,

"headquarters": "South San Francisco" }

sources

  • https://stripe.com/about
  • https://en.wikipedia.org/wiki/Stripe,_Inc.
partial: falsefast · 10 credits

Search the web with Claude

Ask the web a question and get a sourced answer, or send the same request with your API key.

# claude.ai/directory/prefetch → Connect
# Sign in to Prefetch, Allow access. No key to paste.
# Claude Code on the same Claude account has it too.

# Then just ask:

  Use prefetch_answer to find who founded Stripe,
  when, and where it is headquartered, as JSON.
Open in Claude

What teams build with the Answers API

  • Account research

    Fill in the facts your CRM is missing, leadership, funding, headquarters, with a source behind every one.

  • One tool for agents

    Give an agent a single tool that searches, reads and answers in a shape it can act on.

  • Research at scale

    Ask the same question about thousands of companies and get comparable, typed JSON back.

  • Due diligence

    Collect sourced facts about a vendor or counterparty, with nulls where the web is silent.

10 credits per answer

That is fast mode; ultra mode researches deeper for 100 credits an answer. Research that fails or times out is never charged. Every plan unlocks every endpoint, failed requests are free, and requests pause at your limit rather than billing past it.

Free

$0

USD

/month

1,000 credits / month

Start Free
  • Up to 100 answers
  • 1 concurrent request
  • 30 requests per minute
  • No credit card required

Starter

$9

USD

/month

5,000 credits / month

Get Starter
  • Up to 500 answers
  • 10 concurrent requests
  • Unlimited requests per minute
  • Email support
  • $5 per 2,500 additional credits

The same plan unlocks every other endpoint too. Each line is the whole month of 5,000 credits spent there instead of on answers. Mix them however you like.

  • 5,000 name lookups: Company Name to Domain API

    (1 credit per lookup, a company, brand or product name in, its official website's domain out)

  • 5,000 pages: Web Scraping API

    (1 credit per page, any URL to clean markdown, a summary or structured JSON, ready for an LLM)

  • 5,000 site maps: Sitemap API

    (1 credit per call, every URL a site exposes, from its sitemaps and links, without fetching a page)

  • 5,000 crawled pages: Web Crawling API

    (1 credit per page, a whole site, or one section of it, rendered page by page into clean markdown)

  • 5,000 screenshots: Screenshot API

    (1 credit per call, any URL to a hosted image, at any viewport, full page or above the fold)

  • 5,000 page checks: Website Monitoring API

    (1 credit per page checked, pages re-checked on your schedule, with a webhook carrying only what changed)

  • 1,000 company lookups: Company Data API

    (5 credits per call, the legal entity, its size, founding year and published contacts behind a domain)

  • 1,000 classifications: Website Classification API

    (5 credits per call, the IAB category, subcategory and a readable description of any URL)

  • 500 brand lookups: Brand API

    (10 credits per call, logos, colors, fonts and social assets pulled from any domain)

  • 416 enrichments: Company Enrichment API

    (12 credits per call, brand, company and classification for any domain, from one page load)

Failed requests are never charged. Top-up credits are spent after your monthly credits and never expire.

Web Research API questions

Scale with confidence. Handle thousands of requests per second on fast, reliable infrastructure.

Registered Users
300+
API calls processed
40k
Uptime
99.9%

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Make your first API call in under 5 minutes. No setup headaches, just copy, paste, ship.

Quick start guide

API reference

Request schemas, response examples, everything you need to integrate.

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