Best Stdio AI Skills & MCP Servers

Evaluate, simplify, and differentiate mathematical expressions via MCP. STDIO or Streamable HTTP.

Search the PubChem chemical database for compounds, properties, safety data, bioactivity, cross-references, and entity summaries via MCP. STDIO or Streamable HTTP.

A local stdio MCP server that gives coding agents safe deterministic access to common local developer operations.

A collaborative BrAPI v2.1 workspace for multi-agent research via MCP. Search studies, germplasm, genotypes, & more - across Breedbase, T3, Sweetpotatobase, & any BrAPI v2-compliant server.

Query 29,500+ World Bank development indicators for 200+ countries across 60+ years via MCP. STDIO or Streamable HTTP.

OpenCodeHub — stdio MCP server exposing code-graph + group tools

Fetch US Bureau of Labor Statistics data — CPI, unemployment, wages, JOLTS, and more via MCP. STDIO or Streamable HTTP.

Installable AgentLux MCP server and embeddable toolkit for marketplace, identity, creator, services, and social flows on Base

Page Context MCP Bridge - relays extension context tools to MCP clients via stdio/SSE transport

Open-source MCP server to publish to Dev.to, Ghost, Hashnode, WordPress, Medium, Substack, LinkedIn, X, Bluesky, and Mastodon from Claude Code. Local stdio, no cloud relay. Includes SEO scoring, JSON-LD schema, canonical-URL wiring, social-post generation

Access U.S. congressional data - bills, votes, members, committees - through MCP. STDIO & Streamable HTTP.

MCP stdio server for HrClaw Market - enables OpenClaw agents to browse agents, skills, and tasks

Access the OpenAlex academic research catalog - 270M+ publications through MCP. STDIO & Streamable HTTP.

Query SEC EDGAR filings, XBRL financials, and company data through MCP. STDIO & Streamable HTTP.

MCP stdio server for LumenFlow workflow framework

Get US weather forecasts, active alerts, and current observations via the National Weather Service API. STDIO or Streamable HTTP.

Query WHO Global Health Observatory data — 3,059 indicators across 194 member states with country, region, year, and sex filters via MCP. STDIO or Streamable HTTP.

MCP server exposing HACKATANK bot dev API (validate, train inline source, submit, replay, spec) to AI clients via stdio.

MCP server with four cognitive harness tools (harness_reasoning, harness_code, harness_anti_deception, harness_memory) that AI agents call before generating. Two install paths: stdio via `npx -y ejentum-mcp` (Claude Desktop, Cursor, Windsurf, Codex CLI, C

Search and query CDC public health data — mortality, vaccinations, surveillance, behavioral risk (Socrata SODA API) via MCP. STDIO or Streamable HTTP.

Argosvix MCP server — AI agent から traces / cost / alert を直接 query するための Model Context Protocol server (stdio transport).

MCP server for Obsidian vaults — read, write, search, and surgically edit notes, tags, and frontmatter via the Local REST API plugin. STDIO or Streamable HTTP.

A secure and scalable Git MCP server enabling AI agents to perform comprehensive Git version control operations via STDIO and Streamable HTTP.

CLI tool for Dataverse, including stdio MCP server. Preview.