Hyperresearch: deep research built on evidence

NewAnswers MCP: search and quote-checked answers for your agents.See how it works

Research built
on evidence.

You get the report and everything behind it: every source it read, the passage each citation rests on, and a verdict on each one. Export it as plain Markdown, or let your own agent search it.

4,069 stars on GitHubOpen source, MITView the project

Store

Your evidence, kept in your vault

Each source is saved with where it came from and when, the full text wherever a legal copy exists, and the exact quote behind each claim. A follow-up question in the same project reads from it first.

How the vault works

Get

The open web, plus direct data APIs

Each run reads web pages in full, then calls more than 40 data APIs directly for official numbers and records: Census, BLS and BEA tables, SEC EDGAR filings, OpenAlex and PubMed papers, recalls, sanctions and city open data.

What a run can read

Validate

Every citation checked against its source

Each citation gets a verdict on the receipt. Cited figures are checked against the source text and corrected where needed before the report ships, and retracted papers are flagged.

What the receipt shows

For agents

Facts your agent can quote.

Answers MCP gives an agent two tools, and both return the exact words a fact rests on.

search
Ranked raw sources from the open web and about 45 structured sources, with word-for-word passages.
ask
A short answer checked against those quotes, or a plain "not found" when it found nothing.

Search 5¢ a call · ask from 5¢ · $5 free credit, no card needed

See Answers MCP answers.hyperresearch.ai/mcp

Evaluation

Accurate where it counts.

DRACO benchmark (Perplexity × Harvard) · 10 tasks, same judge · October 2026How we tested →

  1. 01Hyperresearch DeepHyperresearch77.7
  2. 02Claude Research (Opus)Anthropic73.0
  3. 03Parallel UltraParallel61.5
  4. 04You.com ResearchYou.com · 8 of 10 tasks60.1
  5. 05Perplexity Deep ResearchPerplexity · 8 of 10 tasks57.8
  6. 06Valyu DeepResearch HeavyValyu · 8 of 10 tasks57.2
  7. 07ChatGPT Deep researchOpenAI55.2
  8. 08Gemini Deep ResearchGoogle54.7
Sources cited73distinct sources per report
  • Hyperresearch Deep73
  • Perplexity Deep Research29
  • Gemini Deep Research29
Sources validated96cited figures checked against the source, per report
  • Hyperresearch Deep96
  • Perplexity Deep Researchnone
  • ChatGPT Deep researchnone
  • Gemini Deep Researchnone
Sources saved223sources kept for your next run, per run
  • Hyperresearch Deep223
  • Perplexity Deep Researchnone
  • ChatGPT Deep researchnone
  • Gemini Deep Researchnone

DRACO grades a finished research report against expert-written criteria for factual accuracy, breadth, presentation and citations, and takes points off for wrong claims. We ran every system on the same tasks and graded each report with the paper’s grader and the same judge. Source counts are per-run averages on the first 3 tasks. Method and per-task scores →

Deliberate at every step

A rigorous process.
A clear point of view.

This is a Deep run. It plans the question, researches it chapter by chapter, writes the report in one pass, and checks every cited claim before it ships. A Light run takes the short path: one sweep, one draft, a final edit and the same claim check.

Read. Reason. Remember.

Frame the question. Map the field.

Break down the question, split it into research chapters, and gather a broad foundation of sources for each.

  1. 01
    Decompose

    Your question broken into the things it actually asks · required headings · coverage matrix

  2. 02
    Chapter partition

    3–5 research chapters, researched two at a time

  3. 03
    Width sweep

    Your vault first, then planned searches · breadth, depth, adversarial lenses · parallel fetcher waves

What a run can reach today

Documents, records and pages
a run can search.

301,015,998,569documents, records and pages

Pay as you go · Runs from $9

Ask your first question.

Create an account and add a card: your first Deep run is free. What comes back is the report, the source list and a table of every claim with its quote, and a Deep report adds a verification receipt.

One platform, four possibilities

The whole picture.
All in one place.

From the first question to the final citation, a connected toolkit for work that depends on getting it right.

/01

Ask a question. Get a report with a receipt.

Send one question at the size you need. Light is $9: about 30 to 40 minutes and an answer-first report of about 2,500 to 4,000 words, sized to the question, its cited claims checked against their sources before it ships. Deep is $49: 3 to 5 hours across about 150 to 200 sources, with a verification receipt saying which citations were checked and what the checker found. Either way you get a report that spans the field and argues a case inside it, plus the source list with where each page came from and how good it is, and a table of every claim with its quote. Every intermediate artifact is yours to download if you want to see the work.

receipt · cite-check220 pairs · 4 findings
Light · Deep · 20 to 200 sources depending on the size you ask forSizes and pricing
/02

It keeps what it reads.

Every source a run fetched, every interim note, every claim stays in your workspace. Search it by words or by meaning. Sources carry a quality score and are clustered so five copies of one press release count as one voice. The next run searches the vault before it touches the web, so your second question is cheaper and better informed than your first. Connect your own agent when you want to ask questions across the vault; answers stay in that agent and link back to evidence.

vault · notedeveloper.mozilla.org

text-wrap CSS property - CSS | MDN

tier
ground_truth
utility
16.0
fetch
crawl4ai
type
docs
status
draft
Full text and semantic search · quality scores · lifecycle · portable tar.gz exportHow the vault works
/03

Bring the assistant you already use.

Your vault and your runs are exposed as a remote MCP server. Claude, Cursor, ChatGPT, or an agent you wrote can search notes, read sources, start runs, and check citations from inside the tool you are already working in. Your client opens a browser authorization screen where you choose the workspace and permissions. For your own pipelines, the same runs, vault and reports are on a REST API with scoped keys, and everything also works from the console in your browser. A run is long and asynchronous: start it, get its id back at once, and take the finished report when a webhook says it is ready. The OpenAPI document and the webhook guide are in the docs.

mcp · tool callvault:read
› search_notes {"query":"text-wrap balance","mode":"hybrid","limit":2}
{"hits":[
  {"note_id":"text-wrap-css-property-css-mdn","title":"text-wrap CSS property - CSS | MDN"},
  {"note_id":"css-text-wrap-balance-css-and-ui-chrome-for-developers","title":"CSS text-wrap: balance | CSS and UI | Chrome for Developers"}
]}
Console · remote MCP · browser OAuth · REST API with scoped keys · webhooksAPI and MCP docs
/04

Works on documents we did not write.

Hand it a document and its sources. You get a verdict for each citation: supported, partially supported, unsupported, or wrong source. It also checks that every quoted passage is really in the source, sweeps for retracted papers, and flags sources that are secretly the same story. Run it before you publish.

receipt · evidence[[text-box-trim-css-property-css-mdn]]

The shorthand text-box: trim-both cap alphabetic eliminates font-metric whitespace in Safari 18.2 and Chrome 133. partially-supported

source saystext-box-trim is initially set to trim-both, meaning that the over and under edges of the paragraph are trimmed. text-box-edge is initially set to cap alphabetic, meaning that the text is trimmed flush with the top of capital letters…

suggested fixCross-reference [[css-text-box-trim-blog-chrome-for-developers]] for release provenance.

  1. 20:36:40ship gatefailed · quote-integrity
  2. 20:39:31ship gatepassed
Per-citation verdicts · quote integrity · retraction sweep · independence auditThe verification API

Confidence comes from the work

Built to be
looked into.

Good research should invite scrutiny. We make the evidence part of the answer.

Full text, legally

When a paper sits behind a paywall, the service looks for a legal open-access copy and reads that whole, not the abstract.

Wide, then deep

A run reads across the field first, finds where the sources actually disagree, and only then sends investigators down those specific questions.

A critic before the writing

Before anything is written, a critic asks what source would overturn the direction the research is taking, and those gaps are fetched first.

Retractions block shipping

Every cited claim is read against the source it cites before the report ships, and a retracted paper the report does not acknowledge stops it.

The web is hostile input

Everything fetched is fenced as untrusted data before a model sees it.

Open source underneath

The research stages are the open-source CLI's. The hosted Deep run then plans the report and writes it in one pass.

How a run works, step by step

Where a run can read

Public pages, public records,
and your own vault.

Every rung is recorded on the source it fetched. A question asked in another language is searched in that language as well as English, a Chinese question on Deep ranks official Chinese sources first, and the report can be written in English, Chinese, Japanese or Korean.

/01

It reads what you already have.

Every run searches what earlier runs already read before it touches the web.

/02

Public pages, in rungs.

A fetch tries a direct request first, then Cloudflare browser rendering for pages that only exist after JavaScript runs.

/03

Papers, filings, official statistics.

OpenAlex and PubMed find the papers, Crossref supplies the DOI record and any retraction notice, and SEC EDGAR returns filings, Form D notices and five-year financials.

/04

The whole paper, not the abstract.

For any DOI the pipeline finds, it asks Unpaywall, Europe PMC and CORE for a legal open-access copy and reads the whole paper.

/05

What people said, as it happened.

When a question turns on what people said as something happened, the planner opens a search lane on X for that part of the question.

Every source a run can read

Connect your agent

Bring Claude, Cursor or ChatGPT to your vault.

Your runs and sources are a remote MCP server. Authorize it from your own client and ask questions across everything it has read.

Big questions.
Lasting answers.

Make your next question the start of something bigger.
Every source it reads stays in your vault, and the next question starts from there.

Pay as you go. Runs from $9. Your research stays yours.