# Connected Papers

A web tool that takes one paper and draws a graph of related papers grouped by similarity, so you can see earlier and later work in a field.

- Category: Research tools · by Connected Papers
- Website: https://www.connectedpapers.com/
- Live data: no
- Checked on the official pages: 2026-10-23

## API

- Official API: yes, docs https://github.com/ConnectedPapers/connectedpapers-py
- Key needed: yes
- Price: not stated; limits: default: 5 builds per minute
- Base URL: https://rest.prod.connectedpapers.com
- Formats: json

## Data and license

- License: Site terms (paid Business plan for commercial use); Python client MIT (https://www.connectedpapers.com/); covers Use of the web tool; the client library code is MIT
- Commercial use with conditions
- Credit: not stated
- Embedding unclear
- Quote (api_official): "The official python client for the connected papers API." (https://github.com/ConnectedPapers/connectedpapers-py)
- Quote (api_key): "Contact us at `hello@connectedpapers.com` to get
an early-access access token." (https://github.com/ConnectedPapers/connectedpapers-py)
- Quote (api_test): "Using the token `TEST_TOKEN` or not passing a token at all,
will allow you to access the graph of the paper with the id 
`9397e7acd062245d37350f5c05faf56e9cfae0d6` for testing purposes." (https://github.com/ConnectedPapers/connectedpapers-py)
- Quote (paper_ids): "We use the ShaIDs from [Semantic Scholar](https://www.semanticscholar.org/) as paper IDs." (https://github.com/ConnectedPapers/connectedpapers-py)
- Quote (web_access): "will be limited to 5 graphs per month" (https://connectedpapers.substack.com/p/announcing-premium-accounts-multi-22-07-28)
- Quote (commercial): "for individuals and organizations who use Connected Papers in a commercial context." (https://connectedpapers.substack.com/p/announcing-premium-accounts-multi-22-07-28)

## Rules for an agent

- Official API is early-access only: token by e-mail to the maker, official Python SDK `connectedpapers-py` (MIT), papers keyed by Semantic Scholar SHA ids, default 5 graph builds per minute; price not published; no MCP server.
- Do not scrape the web app; use the API only with a token from the maker
- Commercial use of the web tool falls under the paid Business plan

Human page: https://agentgid.com/resources/connected-papers/
Source: AgentGid (agentgid.com). Facts are quoted from the site's own pages; check the license page before you ship.