Oeis MCP Server

mcp-oeis

MCP server for the OEIS (Online Encyclopedia of Integer Sequences) API

0 tools GitHub PyPI

No known CVEs

No license

Maintained

Last commit 38d ago

Works with most clients

Transport: stdio, sse, http

0 tools

Grade F

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Education Data

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio, sse, http · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "mcp-oeis": {
      "command": "mcp-oeis"
    }
  }
}

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Read me

What Oeis MCP Server does

MCP server for the OEIS (Online Encyclopedia of Integer Sequences) API

Test This Server

Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.

uvx 'mcp-oeis' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

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Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

50/100across 5 weighted dimensions

How we score →

0255075100

−50

Security

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Compatibility

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Security

OSV.dev

No known CVEs.

Checked mcp-oeis against OSV.dev.

Community

Reviews

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Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is Oeis MCP Server safe to use?: Oeis MCP Server has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install Oeis MCP Server?: Oeis MCP Server supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What AI clients work with Oeis MCP Server?: Oeis MCP Server is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
Is Oeis MCP Server actively maintained?: Oeis MCP Server is recently maintained — last commit was 38 days ago.

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Community

Discussion

Start a conversation

Ask a question, share a tip, or report an issue.

Has anyone used this with Cursor?How do you handle auth?Any alternatives?

Usage

As an MCP Server

Configure in your MCP settings:

{ "mcpServers": { "mcp-oeis": { "command": "mcp-oeis" } } }

Python API

from mcp_oeis import mcp # Get a sequence by ID result = mcp.get_sequence_by_id("A000109") print(result["terms"]) # [1, 1, 1, 2, 5, 14, ...] # Search by terms results = mcp.search_by_terms([1, 1, 2, 3, 5, 8]) print(results[0]["name"]) # "Fibonacci numbers" # Search by name results = mcp.search_by_name("prime") print(results[0]["id"]) # "A000040"

MCP Tools

get_sequence_by_id

Get a sequence by its OEIS ID (e.g., "A000109" for simplicial polyhedra, "A000045" for Fibonacci).

search_by_terms

Search OEIS sequences by providing integer terms. For example, searching [1,1,2,3,5,8] will find the Fibonacci sequence.

search_by_name

Search OEIS sequences by name or keyword. For example, searching "Fibonacci" will find Fibonacci-related sequences.

Frequently Asked Questions

Is Oeis MCP Server safe to use?

Oeis MCP Server has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.

How do I install Oeis MCP Server?

Oeis MCP Server supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

What AI clients work with Oeis MCP Server?

Oeis MCP Server is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.

Is Oeis MCP Server actively maintained?

Oeis MCP Server is recently maintained — last commit was 38 days ago.

mcp-oeis

MCP server for the OEIS (Online Encyclopedia of Integer Sequences) API

mcp-name: io.github.daedalus/mcp-oeis

Install

pip install mcp-oeis

Usage

As an MCP Server

Configure in your MCP settings:

{
  "mcpServers": {
    "mcp-oeis": {
      "command": "mcp-oeis"
    }
  }
}

Python API

from mcp_oeis import mcp

# Get a sequence by ID
result = mcp.get_sequence_by_id("A000109")
print(result["terms"])  # [1, 1, 1, 2, 5, 14, ...]

# Search by terms
results = mcp.search_by_terms([1, 1, 2, 3, 5, 8])
print(results[0]["name"])  # "Fibonacci numbers"

# Search by name
results = mcp.search_by_name("prime")
print(results[0]["id"])  # "A000040"

MCP Tools

get_sequence_by_id

Get a sequence by its OEIS ID (e.g., "A000109" for simplicial polyhedra, "A000045" for Fibonacci).

search_by_terms

Search OEIS sequences by providing integer terms. For example, searching [1,1,2,3,5,8] will find the Fibonacci sequence.

search_by_name

Search OEIS sequences by name or keyword. For example, searching "Fibonacci" will find Fibonacci-related sequences.

Development

git clone https://github.com/daedalus/mcp-oeis.git
cd mcp-oeis
pip install -e ".[test]"

# run tests
pytest

# format
ruff format src/ tests/

# lint
ruff check src/ tests/

# type check
mypy src/