MCP Server Directory

quality-screener/quality-screener-mcp-server

Screen and score stocks with the Quality Screener engine: filters, custom scores, and history.

com.quallaa/quallaa

Talk to your public-facing AI from any MCP client — Claude, ChatGPT, Cursor, Cline, Windsurf.

com.qualyhq/qualy

Connect your AI assistant to Qualy to manage payments, billing, and contacts.

paarths-collab/quant-brain-mcp

Stock analysis MCP: 38 indicators, 7 optimizers, 8 backtests, US + India sectors.

app.quantdaily/quant-drill

Daily verified GRE and GMAT quant drill: graded answers, hints and worked solutions.

shekhawat2407/Quant_Framework

Quantitative equity toolkit: factor data, backtests, risk model, attribution, optimizer.

io.github.Quantabble/ap-science-diagnostics

Misconception detection for AP Chemistry & Physics 1. 90% catch rate vs 24% baseline.

com.quantamentry/quantamentry

Daily sovereign-credibility and macro scores for 169 emerging markets, built on free public data.

com.quantape/markets

Stock screens; per-stock earnings, guidance, signal and sector insights; rotation and market mood.

quantcalc-app/quantcalc-mcp-plugin

Retirement Monte Carlo, tax-aware withdrawal plans, 2026 return estimate, state tax in every state.

com.quanterlab/quanterlab

Backtest trading rules and read registered finance studies, on point-in-time data.

quanti-io/mcp

Query BigQuery, Snowflake, Redshift & Azure Synapse with natural language

finance.quantic/mcp

Dividend portfolio tracking and planning for US and EU markets: income, safety, Spain-aware taxes.

io.github.Manuciao88/portfolio-simulator

Portfolio scenarios with instrument checks, Monte Carlo analysis and interactive reports.

ai.quantifyme/quantifyme

Describe a trading strategy in plain English and deploy a live signal model in one call. No signup.

AliMuhammadOfficial/quantlix-agents

Search and read published Quantlix services, company information and insights.

com.quantradin/quantradin

Honest backtests and paper trading for US options and equities, driven by your agent.

io.github.QuantSonar/quantsonar

China A-share market data for research, backtesting and AI agents via MCP.

ToolOracle/quantum

QuantumOracle — 18 post-quantum crypto tools: Kyber, Dilithium, hybrid schemes, migration.

app.surewhynot.quantum-artificer/quantum-artificer

Scientific compute for AI agents: symbolic, numerical, quantum, chemistry, ODE. Paid via x402.

com.quantum-expectations/quantum-expectations

Quantum error-correction feasibility: success probability, qubit overhead, records, trends.

io.github.Evozim/quantum-shield

Post-quantum cryptographic library protecting data packets.

io.github.gaiabio12-design/quantumscan-pqc-scanner

PQC scanner for GitHub repos and smart contracts. Detects quantum-vulnerable ECDSA/RSA.

com.quantuxlabs/quantux-bidder

Find freelance work, assess opportunities, and prepare user-directed applications.

com.quantwright/agent-api

Backtests with costs, a held-out test that counts once, a score that counts every version tried.

ai.quarri/quarri

AI data platform for timber: connect legacy systems, query, build dashboards, reconcile, automate.

al157/quarterly-tax-calc

US federal + state quarterly estimated tax estimates, SE tax, and quarterly payment due dates.

app.surewhynot.quartermaster/quartermaster

x402 toolkit for AI agents: paid web, AI, and Base chain tools per call in USDC. Free tools too.

io.github.theluckystrike/self-employment-tax

A self employment tax calculator and quarterly estimated tax planner for 2026.

com.nuzzodevstudio/quasar-guide

Read-only guide to Quasar, the AI-agent-first project management tool. No sign-in needed.

com.quasslabs/api

30+ deterministic dev and delivery tools: linting, metrics, diagrams, model advice, AI-text checks.

com.quattr/ai-visibility

Analyze SEO and AI visibility, compare competitors, and find growth opportunities with Quattr data.

io.github.quay21/quay

Pay-per-call TRON fee, payment, and address checks. Agents pay USDT or USDC.

com.quayutec/quayutec

The shared room where AI agents from different companies work together autonomously on one project.

quberi/quberi

Search, browse, and save notes into your Quberi knowledge base. Signs in with your Quberi account.

com.qubitsok/mcp-server

Quantum computing jobs, arXiv papers & researcher profiles from qubitsok.com

NicksAdvisory/quellenkontor-sdk

Verified German HR data with legal source: minimum wage, social security, holidays, notice periods

Quelvio/quelvio-mcp-server

Your company's brain for AI agents. Cited, permission-aware knowledge across every system.

mcp-dir/querido_diario-mcp

Searches MUNICIPAL official gazettes from thousands of city halls (Querido Diário / Open Knowledge B

io.github.Evozim/query-forge

Enterprise SQL query optimizer and performance analyzer.

QueryAction/queryaction-plugin

Site growth from your agent: GA4, Search Console, PageSpeed, SEO research and weekly reports.

app.queryatlas/queryatlas

Query selected Google and Bing analytics, search, and advertising reports through MCP.

io.github.spencerpauly/querybear

Safe, read-only Postgres and MySQL access for AI agents. Audit log + column-level controls.

com.queryinbox/queryinbox

Read-only Google Search Console and Google Analytics for AI agents.

com.querylines/mcp

Surplus lines market data, per query. U.S. E&S: premium, financials, litigation, catastrophe.

QueryQuarry/QueryQuarry

Double-blind talent marketplace: AIs search anonymous opted-in candidates; reveal on consent.

querysail/querysail-gsc

Hosted, read-only Google Search Console MCP: performance, comparisons, URL inspection, sitemaps.

querysail/querysail-ga4

Hosted, read-only Google Analytics 4 MCP: reports, period comparisons, realtime, custom fields.