Hybrid

oeis-mcp-server

Identify integer sequences by terms, search the OEIS, read formulas, programs, b-files, cross-refs.

io.github.cyanheads/oeis-mcp-serverSource repository

Version0.1.3latest catalog version

ConnectionHybridstreamable-http · npm

PublishedOct 18, 2026catalog

UpdatedOct 18, 2026catalog

Overview

What this server provides

Identify integer sequences by terms, search the OEIS, read formulas, programs, b-files, cross-refs.

Connect

Remote endpoint 1streamable-http

https://oeis.caseyjhand.com/mcp

Install

Package 1npm

@cyanheads/oeis-mcp-server0.1.3

Runtime npxTransport stdio

MCP_LOG_LEVEL
Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').
Format: string · Default: info
Optional
OEIS_QUEUE_MAX_WAIT_MS
Longest a call waits in the oeis.org request queue (paced to one start per 10 s) before failing with RateLimited and retryAfter, in milliseconds.
Format: number · Default: 30000
Optional

Package 2npm

@cyanheads/oeis-mcp-server0.1.3

Runtime npxTransport streamable-http

http://localhost:3010/mcp

MCP_HTTP_HOST
The hostname for the HTTP server.
Format: string · Default: 127.0.0.1
Optional
MCP_HTTP_PORT
The port to run the HTTP server on.
Format: string · Default: 3010
Optional
MCP_HTTP_ENDPOINT_PATH
The endpoint path for the MCP server.
Format: string · Default: /mcp
Optional
MCP_AUTH_MODE
Authentication mode to use: 'none', 'jwt', or 'oauth'.
Format: string · Default: none
Optional
MCP_LOG_LEVEL
Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').
Format: string · Default: info
Optional
OEIS_QUEUE_MAX_WAIT_MS
Longest a call waits in the oeis.org request queue (paced to one start per 10 s) before failing with RateLimited and retryAfter, in milliseconds.
Format: number · Default: 30000
Optional

View server metadata

Namespace