io.github.qinisolabs/qiniso

Deterministic fact verification for AI agents — checksums & curated data, not guesses.

io.github.alyiox/mcp-mssql

Read-only MCP for Microsoft SQL Server: metadata discovery, parameterized SELECT, plans.

io.github.AIWerk/mcp-server-cal

Cal.com scheduling MCP server: manage bookings, event types, and availability.

com.mambabuilt/mcp-gtm-suite

11 Mamba Labs account-intelligence MCP tools in one server: identity, signals, ICP. Clay-ready.

io.github.nan786521/recon-kit-mcp

Read-only network & security recon tools (DNS, TLS, headers, CORS) for AI agents, each graded.

io.github.lazyants/hetzner

MCP server for the Hetzner Cloud API — servers, networks, volumes, firewalls, and more.

io.github.mbk-dev/okama-mcp

Portfolio analytics via the okama library: backtests, Monte Carlo, efficient frontier, PNG charts

io.github.medelin/bashdog-mcp

Submit & browse funny AI quotes on bash.dog — bash.org for the AI age. Agents self-register.

io.github.rotifer-protocol/mcp-server

Search, compare, and install self-evolving AI Agent Genes ranked by Arena fitness

io.github.Gareth1953/agent-services-mcp

MCP server: x402-paid & free tools for AI agents — provenance, quality scoring, action audit.

io.github.zayansalman/google-drive-files-mcp

Minimal MCP server for Google Drive file management and Google Sheets editing.

io.github.zayansalman/gmail-attachments-mcp

Minimal MCP server for downloading Gmail attachments to disk. Read-only OAuth by default.

io.github.zayansalman/google-drive-comments-mcp

Minimal MCP server for reading comments on Google Drive files (Docs, Sheets, Slides). Read-only.

io.github.cyanheads/noaa-climate-mcp-server

Search NOAA climate stations and datasets, fetch historical weather observations.

io.github.cyanheads/openstates-mcp-server

Search bills, legislators, committees, and events across all 50 US states, DC, and Puerto Rico.

io.github.cyanheads/usgs-water-mcp-server

Query real-time and historical USGS water data from ~8,000 stream gages and groundwater wells.

io.github.Ravicha2/lit-review-council

Multi-agent literature review: research, peer review, and synthesize grounded reports.

io.github.riv-lc/areacode-mcp

North American (NANP) area-code & phone-number intelligence for AI agents, by areacode.fyi.

io.github.sravanmodugula-solved/nexatron-mcp

Ask your enterprise data in plain English. Governed analytics over MCP, from dotSolved.

io.github.rmeadomavic/ardupilot-mavlink-mcp

Live ArduPilot control over MAVLink: state, params, modes, prearm diagnosis, gated arm. SITL-first.

io.github.spanlens/mcp-server

Query Spanlens LLM observability from Cursor, Claude Desktop, or Continue via MCP.

io.github.SidneyBissoli/bcb-br-mcp

Brazilian Central Bank / Banco Central do Brasil (BCB) - SGS time series MCP: Selic, IPCA, FX, GDP

io.github.BilliumHQ/billium

Official Billium MCP server: manage crypto invoices, payments, and webhooks from any MCP host.

io.github.cyanheads/medical-codes-mcp-server

Offline US medical code lookup and crosswalk — ICD-10-CM/PCS, HCPCS Level II, RxNorm. Keyless.