Oeis Mcp

io.github.mrfentmenPublished by GitHub account mrfentmenv1.0.0Updated Oct 24, 2026

Use this MCP server to the OEIS, the encyclopedia of integer sequences. Look up any sequence,...

VerifiedSTDIODesktop onlyKnowledge & Memory

Server details

Identifier: io.github.mrfentmen/oeis-mcp
Transport: STDIO
Runtime: Desktop only
Trust: Verified
Published: Sep 22, 2026

Security note

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The registry verified the GitHub account mrfentmen for this listing. That does not show the account is the product's maker.

SourceWeft's checks cover whether the listing is complete and the endpoint answered; they do not review the server's code or what its tools do.

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Overview

AI-generated overview

A local MCP server that connects an assistant to the OEIS, the encyclopedia of integer sequences, for looking up integer sequences.

What you can do: Look up integer sequences in the OEIS encyclopedia by their terms or identifiers, so the assistant can identify a sequence and retrieve its entry.
When to use it: Useful when working with number patterns, combinatorics, or puzzle-style problems where identifying a known integer sequence and its references would help.
Requirements: Runs as a local process on the user's machine, installed from the npm package oeis-mcp; it needs a Node.js runtime and network access to reach the OEIS.

Installation

In SourceWeft

Open Oeis Mcp in the dashboard and add it to a workspace.
Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

This repository has no README.

Tools

SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

v1.0.0LatestSep 22, 2026

Score

25% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

Reached in the last 30 days25 pts
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Auth declared10 pts
Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.
Tools listed15 pts
Answer tools/list without a credential, or ship a package that starts in a sandbox without one.
DescriptionRequired15 pts
Logo10 pts
Documentation15 pts
Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.
License10 pts
Declare a license in the repository or the registry entry.