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The web app is a map of the corpus with search, a paper panel, and your lists laid over it. You can browse and search without an account. Sign in — with Google, or an email and password — to save lists, share them, chat without limits, and mint API keys.
Nisa: a left rail with the Nisa/Merv switch, the paper map with labelled regions, and the search bar at the bottom

Position reflects content; colour is a paper's community. The highest-PageRank papers appear first, more as you zoom. Region names are clickable.

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The rail

The rail on the left is desktop-only, and ⌘B hides it. From top to bottom it holds the two commands, Search papers (⌘J) and Ask the agent (⌘K); Explore, which is the map; Library, your lists; Chats, your five most recent conversations; and your account chip at the bottom, which opens Settings, Begin tour, Feedback, Docs, and Sign out. The switch at the very top takes you to Merv on the same account.

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The map

Each dot is a paper, and nearby papers are about similar things. Colour marks the paper’s community in the citation-and-similarity graph, so a paper sitting in one region with another region’s colour bridges two areas. Region labels appear in two levels as you zoom — fields first, then subfields — and the pill at the top tells you where you are. The controls at the bottom right zoom, Fit view to the whole map, switch the recency lens on (the clock, which colours dots by publication year), and open a minimap.
Search results for 'flash attention' above the bottom bar, with 'Press Enter for agent search' and matching papers highlighted on the map

Results appear as you type. Enter hands a question to the search agent.

Type in the bar and results appear as you type, matched against title, abstract, and full text, with title matches ranked first. An arXiv id or URL opens that paper directly. Press Enter on a question and the search agent takes over: its steps stream in the panel and the papers it finds merge in above the keyword results, marked Found by agent. Any result set can be filtered by year range or author. Ghost-text autocomplete is off by default and can be switched on in Settings; Tab or → accepts a suggestion. Five agent searches are free without an account.

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A paper

Paper panel for Attention Is All You Need: first-page preview, year and citations, Read / arXiv / Share / Save / Github, and a Similar Papers list

Similar Papers, ranked by the same hybrid citation-and-content signal as nisa related; the map highlights them.

The panel shows the title, authors, a preview of the first page, the year and citation count, and the abstract. The actions are Read, which opens Nisa’s own reader with the PDF beside the map; arXiv, which opens the paper there; Share, which copies a link; Save, which adds it to a list; and Github, when a repository is found. Below the actions, Similar Papers lists related work ranked by a hybrid of the citation network and content similarity — each row’s tooltip says which — with filters and CSV export. The breadcrumb at the top retraces your path.

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Lists

Save on a paper opens Save to…, where you pick a list or name a new one. In a list’s settings you can give it an icon and a description, and make it Public, so anyone with the link can view it. Share with people… invites collaborators by email. Members can add, remove, annotate, and rename, but only the owner can publish. Each paper in a list can carry a note. The ⋯ menu copies the link, exports CSV, and deletes the list (owner) or leaves it (member). These are the same lists nisa lists shows in the CLI; BibTeX export is CLI-only (Exporting).

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Settings

Settings opens from the account chip and has five tabs. General holds two switches: the AI Agent, on by default, and Autocomplete, off by default. Usage is a token ledger for your searches and chats, broken down by day, by model (Sol, Terra, Luna), and by conversation. Data & Privacy clears your search history. API Keys creates and revokes keys; a key is shown once. Account shows your email, changes your password if you signed up with one, and signs you out — from this browser only, so Merv’s session on the shared account stays.

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Keyboard

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Mobile

Two phone screens: the map with the bottom bar, and a paper opened in a bottom sheet with Read, arXiv, Share, Save actions

The bar folds into a pill; papers open in a sheet with three heights.

Pinch, drag, and tap. A paper opens in a sheet with three heights — title only, half, and full — and Read opens reading mode, which prefers arXiv’s HTML rendering because it reflows for the phone, falls back to the PDF, and offers a toggle between them. The account menu sits in the collapsed bar. Paper data comes from arXiv. Thank you to arXiv for use of its open access interoperability.

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Next steps

Chat in the web app

Sessions, mentions, research mode, sharing, and your local files.

Install the CLI

The same corpus from your terminal and your agents.