Edgepedia

Name: Edgepedia
Author: edgechat

@edgechatMCP server · External

Search and read Edgepedia, a free and growing encyclopedia with citations. No key.

Reference & encyclopediasv1.2.0MIT

Freeno charge per call

One address for any MCP client. No sign-in needed on this server.

What it does

3 read1 act1 other

Grouped by tool name. At most: only reads or looks up information.

What it costs

Free

Odel charges nothing per call. The publisher may charge for its own service.

Tools

5 · grouped by tool name · checked 9 Oct 2026

Read · 3Look things up

search
fetch
resolve

Act · 1Change something

connect

Other · 1Neither hinted nor named

Try it in the Inspector

README4 min readView on GitHub

Edgepedia MCP server

The official MCP server for Edgepedia, a free encyclopedia by EdgeChat: over 300k articles with citations, and constantly growing. It lets an AI assistant search Edgepedia and read whole articles.

Address: https://www.edgechat.ai/mcp (Streamable HTTP). No key, no sign-up, read-only.

Listed in the official MCP Registry as ai.edgechat/edgepedia.

Corpus 1.6

Edgepedia 1.6, released October 11, 2026, adds 14,827 articles on Nobel laureates and other leading thinkers, religion, and economics, and rewrites 10,118 more. Edgepedia now holds 381,770 articles. Edgepedia 1.6.1, the same day, adds 132,755 links from articles to the articles they mention, which connect follows.

Inspect the API root for current corpus_version, corpus_updated, and release_notes metadata. The MCP initialization instructions include the same metadata. Corpus releases and MCP package versions are independent: corpus 1.6 does not mean MCP package version 1.6.

Connect

Claude Code

bash

claude mcp add --transport http edgepedia https://www.edgechat.ai/mcp

Claude (web and desktop): Settings → Connectors → Add custom connector → https://www.edgechat.ai/mcp

ChatGPT (paid plans): turn on Developer mode (Settings → Security and login), then Plugins → + → New Plugin → Server URL https://www.edgechat.ai/mcp, Authentication: No Auth. In a chat, type @Edgepedia.

Cursor (~/.cursor/mcp.json)

json

{ "mcpServers": { "edgepedia": { "url": "https://www.edgechat.ai/mcp" } } }

VS Code (.vscode/mcp.json)

json

{ "servers": { "edgepedia": { "type": "http", "url": "https://www.edgechat.ai/mcp" } } }

Gemini CLI

bash

gemini extensions install https://github.com/EdgePlat/edgepedia-mcp

Any other client: add https://www.edgechat.ai/mcp as a Streamable HTTP server.

Tools

Tool	Input	Returns
`search`	`query`: a subject's name, not a question	Matching articles: id, title, link, and the published summary, falling back to the article opening when no summary is available. Other names and misspellings work ("Zhu Yuanzhang" finds the Hongwu Emperor). Words that name a topic ("science fiction writers") also return that topic.
`fetch`	`id`: an article's or topic's id; `citations` (optional)	One article as Markdown, with its link, date, topic, license, and credit line. `citations: false` swaps inline source links for `[n]` markers, about a quarter shorter. A topic's id lists its articles. Optional: up to 10 ids at once, one section, a token budget, or only the passages that match your words.
`related`	`id`: an article's id	Articles related to it: its topic-mates, a few from each neighboring topic, and its geography neighbors.
`connect`	`from`, `to`: two article ids	The shortest chain of in-text links from one article to the other (at most 6 hops), with the sentence that makes each hop.
`resolve`	`name`, and optionally `context`: words from the text around it	Which article a name means, with a confidence and the alternatives ("Jaguar" beside "British car maker" is Jaguar Land Rover; beside "big cat" it is the animal).

All five tools are annotated read-only. Try asking:

When did Mount Fuji last erupt? Use Edgepedia.
Who was Zhu Yuanzhang? Use Edgepedia.
How is Marie Curie connected to Mount Fuji? Use Edgepedia.
Give me the credit line for Edgepedia's Marie Curie article.

Reference cards

Use the reference-card builder to find an article, choose automatic, light, or dark appearance, and copy its embed code. Each card shows the title, complete published summary, Edgepedia credit, and a link to the full article. The optional sizing script adjusts the iframe height; without it, the card remains readable and scrollable.

The standalone HTML example embeds Cantor's diagonal argument, using canonical article ID ep9kcz7eym:

html

<iframe data-edgepedia-card src="https://www.edgechat.ai/embed/ep9kcz7eym?theme=auto"
  title="Edgepedia: Cantor&#39;s diagonal argument" loading="lazy" referrerpolicy="no-referrer"
  sandbox="allow-scripts allow-same-origin allow-popups allow-popups-to-escape-sandbox"
  style="width:100%;height:360px;border:0"></iframe>
<script async src="https://www.edgechat.ai/assets/edgepedia-embed.js" referrerpolicy="no-referrer"></script>

No MCP client?

Plain JSON API, same reads: www.edgechat.ai/developers (OpenAPI). Every article is also Markdown at its own address: www.edgechat.ai/koala.md.
Agent Skill: skills/edgepedia/SKILL.md teaches an agent to use that API.
Examples in examples/: curl, Python, and JavaScript, with no dependencies.

Limits

600 calls a minute and 100,000 a day per IP address, for the API and the MCP server alike. Please cache.

License

Articles are under the Edgepedia Community License 1.0: free with credit, commercial use included, and AI training is open to everyone. For other uses, organizations over USD 100 million in revenue or 100 million monthly users license separately. Show each article's credit line, with its link, wherever you show its text.

This repository's own files (documentation, configuration, and examples) are under the MIT License.