Edgepedia

Edgepedia MCP server

The official MCP server for Edgepedia, a free encyclopedia by EdgeChat: more than 400,000 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 1.8

The current release is Edgepedia 1.8.0 (October 21, 2026), which adds 68,240 new articles on life and health, places, and sports, rewrites 67,775 more, reorganizes the topic tree, and fixes errors across the corpus; Edgepedia now holds 486,198 articles.

Earlier releases: Edgepedia updates.

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 1.8 does not mean MCP package version 1.8.

Connect

Claude Code

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)

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

VS Code (.vscode/mcp.json)

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

Gemini CLI

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.
• What is Mwindo Fossae on Pluto? 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:

<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.

Links

• Read Edgepedia: www.edgechat.ai/edgepedia
• What's new: www.edgechat.ai/edgepedia/updates
• Edgepedia offline, in EdgeChat: www.edgechat.ai/download
• Something broken? Report it, or open an issue here.
• Privacy: www.edgechat.ai/privacy