MCP topic guide
RAG MCP Servers
Ground agent responses in your data. Compare memory layers, vector stores, and retrieval servers with searchable tool indexes.
Showing 60 of 637 matching servers from our catalog. Search full directory →
Xero
Interact with the accounting data in your business using our official MCP server
sap-mcp
Use the SAP MCP Wizard or install the library from the npm registry to automatically create and configure a Solana/SAP wallet via https://mcp.sap.oobeprotocol.ai
Korean Law Search
Search and retrieve Korean statutes and administrative rules with precise filters. Access English translations and drill down to articles, paragraphs, and sub-items. Explore linkages with local ordinances and delegated authority to speed up legal research.
MLB Stats Server
Provide structured access to Major League Baseball statistics through an MCP server. Query and retrieve detailed baseball data including statcast, fangraphs, and baseball reference stats. Generate visualizations and integrate seamlessly with MCP-compatible clients for enhanced baseball analytics.
lex-oracle
Deterministic, citable legislative blueprints for Slovak and Czech law. Eliminates LLM hallucinations in regulated payroll, tax, garnishment, travel, and B2B computations.
Webex
A Model Context Protocol (MCP) server that provides AI assistants with comprehensive access to Cisco Webex messaging capabilities.
cortex
An MCP-native agentic platform orchestrating planner/executor/critic agents over hybrid RAG with three-tier memory, budget enforcement, safety guardrails, and full observability. It exposes all capabilities as MCP tools, enabling natural-language control of document ingestion, retrieval-augmented generation, and multi-step AI workflows.
Todoist
Full implementation of Todoist Rest API for MCP server
Inferventis Finance MCP
19 production-ready financial tools for AI agents. Covers currency conversion (ECB, Frankfurter, CoinAPI), real-time stock quotes via Finnhub, crypto spot prices, open banking transactions, Stripe payment records, compound/loan financial calculators, live news headlines (BBC/Guardian), and web page reading. Free and standard tiers. No setup required for free tools.
Synapse Layer (Synapse Protocol)
MCP-native Trust Infrastructure for AI Agents. Persistent encrypted memory with Trust Quotient scoring, cross-agent handover, and immutable audit trail.
Colour Memory — Cultural Color Intelligence for AI
The world's only historically grounded colour archive built for AI agents. Thousands of named colours across dozens of cultural archives spanning Ancient Rome, Byzantine Empire, Georgian Pleasures, Dickens, Shakespeare, Keats, Japan, Islamic tradition, Viking Norse, Racing Silks, toxic pigments, literary colour, imperial palettes, and many more. Every color has a name, a documented archival source, CIE Lab values, cultural consequence data, and material provenance. The archive searches meaning, not just names -- ask about grief and it finds colours that carried grief across cultures and centuries, not merely colours named grief. Built as a retrieval system, not a generator. Deterministic, evidence-based, source-cited. The anti-hallucination layer for colour history.
ContrastAPI
MCP server with 55 security intelligence tools — CVE/KEV, MITRE ATLAS+D3FEND, Sigma detection rules, email security posture (SPF/DMARC), domain & web intel, threat intel.
OneSignal
OneSignal is a customer engagement platform that lets you send targeted push notifications, emails, SMS, and in-app messages, manage audiences, and track campaign performance. With the OneSignal MCP, manage your messaging directly from your AI assistant. Send push notifications, emails, and SMS by simply describing your audience and message. Check campaign delivery stats, build audience segments, manage templates, and handle user subscriptions all through conversation.
x711io - universal gas station market and intelligence
Pay-per-call tool API for autonomous agents. x402 payments on Base. 27 tools including web search, price feeds, and The Hive shared memory layer.
Kash — POS, Invoicing, CRM & Webshop
# Kash MCP Server — Official Integration > **Connect your Kash business to Claude, ChatGPT, and any MCP-compatible AI — and run your entire operation through natural conversation.** Kash has been a free, cloud-based point-of-sale solution since 2011, trusted by thousands of merchants across restaurants, retail, bakeries, florists, food trucks, and more. This MCP server is the official bridge between Kash and the new generation of AI assistants, turning every tool in your business into something you can simply talk to. --- ## What is Kash? Kash (kash.click) is a complete, free business management platform built for small and medium businesses. It goes far beyond a simple cash register: - **Point of Sale** — touchscreen-ready, works on any device (Android, iOS, Windows, Mac), online and offline - **Invoicing & Quotes** — generate PDF invoices, quotes, delivery notes, and expense reports in seconds - **CRM** — manage your full customer base with contact details, purchase history, loyalty points, credits, and custom fields - **Online Store / Webshop** — built-in e-commerce storefront synced with your catalog and inventory - **Inventory Management** — real-time stock tracking, alerts, supplier management, and buying prices - **Delivery Management** — table service, takeaway, drive-through, home delivery, relay points, and shipping - **Loyalty & Marketing** — loyalty cards, loyalty points, coupons, vouchers, referral programs, and marketing campaigns - **Payment Flexibility** — cash, card (SumUp, Yavin, Viva.com), PayPal, Lydia, GoCardless, direct debit, and even cryptocurrency - **Reporting & Analytics** — sales reports, revenue charts, export to CSV, accounting chapter mapping, and Pennylane integration - **Multi-user & Multi-cashbox** — manage staff access, roles, and multiple physical or virtual cashboxes All of this is **free** for small businesses, with no mandatory subscription. --- ## What Does This MCP Server Do? This server exposes the full Kash API as
memxus
**Memxus** is multi-platform persistent memory for AI assistants. Save project context, preferences, and decisions once — recall them in Claude, ChatGPT, Cursor, and other MCP clients. ## What it does - **Remember** — store facts, preferences, and project context with collections and tags - **Recall** — semantic search across your memories - **Get context** — formatted context blocks for the current topic - **Manage** — list, inspect, update scope, and delete memories ## Connect - **OAuth** (recommended): sign in with Google via your Memxus dashboard - **API key**: create an `aimem_*` key at [dashboard.memxus.com](https://dashboard.memxus.com) **MCP endpoint:** `https://mcp.memxus.com/mcp` **Docs:** [memxus.com/docs/mcp](https://www.memxus.com/docs/mcp) **Install:** [memxus.com/install](https://www.memxus.com/install) **Privacy:** [memxus.com/privacy](https://www.memxus.com/privacy) ## Tools `remember`, `recall`, `get_context`, `list_memories`, `get_memory`, `list_collections`, `forget`, `memory_stats` Built for developers and power users who work across multiple AI tools without repeating the same context every session.
humanMCP
Personal MCP server for humans who create. 39 tools: content publishing, Ed25519 signatures, license control, artworks with provenance, async Q&A, listings, federation. Your content, your rules.
Square
A Model Context Protocol (MCP) server for square
witness-protocol
Receiptor MCP
Receiptor connects AI agents to your bookkeeping workspace so they can find, review, and organize financial documents such as receipts, bills, and invoices. Use it to inspect workspace context, monitor intake sources, review extracted document data, check integrations, and prepare accountant-ready workflows through secure OAuth access to Receiptor AI.
Delx MCP Server
Agent operations platform with 20+ tools for AI agents. Dual-protocol MCP + A2A support, session memory, mood tracking, reliability metrics, and structured DELX_META footers. Built for production agent workflows.
Miro
Miro MCP server, exposing all functionalities available in official Miro SDK.
ia-qa.com/mcp llm and RAG testing - Dev/QA toolbox
IA-QA as an MCP Server Use IA-QA's developer tools to test your llm agents RAG ai tools, directly from Cursor, Claude Desktop, Windsurf, or any AI agent without leaving your IDE. Many classical testing tools too ! Enjoy ! No API key. No signup. Free.
Scholar Feed
Search 600,000+ CS/AI/ML research papers with LLM-generated novelty analysis, without leaving Claude Code, Cursor, or any MCP client. Built for researchers running a literature review where they already work: search, trace citations, pull full text, and export BibTeX in the same session.
Swiss Truth MCP
Verified knowledge base for AI Agents — certified Swiss facts, no hallucinations. Swiss Truth gives your AI agent access to a curated, expert-reviewed knowledge base — covering Swiss law, health, finance, education, energy, politics, climate, AI/ML, and world science. Every fact has passed a 5-stage validation pipeline: semantic deduplication, AI pre-screening, source URL verification, expert peer review, and SHA256 integrity signing. Confidence scores decay over time — no stale data silently served. Tools included: • search_knowledge — semantic search in DE, EN, FR, IT, ES, ZH (auto-detected) • verify_claim — fact-check any statement → supported / contradicted / unknown • submit_claim — contribute new facts through the full validation pipeline • get_claim, list_domains, get_claim_status No API key required. Fully public. Connect in 30 seconds.
YouTube
Fetch YouTube subtitles
ClickHouse
Query your [ClickHouse](https://clickhouse.com/) database server.
Gapup MCP — 270+ Agent-payable AI Tools
270+ agent-payable C-suite expertises (competitive intel, SEC filings, sanctions multi-jurisdiction, KYC, pentest scope, clinical evidence GRADE-graded, real-estate deals EU-first, ESG, NAICS classifier, patent landscape, research paper Q&A). x402 USDC/EURC micro-payments. Free tier 100 calls/mo, no credit card. Dual-audience (human/agent).
DialogBrain
DialogBrain gives AI agents access to all your messaging channels — Telegram, WhatsApp, Instagram, Email, and more — through a single MCP interface. Read conversations, send messages, search contacts, and manage threads across 10+ channels. Perfect for LangGraph, Claude, and any MCP-compatible agent framework.
Synmerco — Confidential Escrow for AI Agent Commerce
The only MCP server with Confidential Escrow Mode — HIPAA/GDPR-ready encrypted transactions for regulated AI agents. 46 tools for the full agent commerce lifecycle. **Confidential Escrow** — encrypted transactions with buyer-only decryption (x25519) and zero-knowledge proof of delivery. The escrow system never sees the work product. Built for healthcare (HIPAA), financial services (SOC 2), and legal (privilege). **What you get:** escrow lifecycle, trust scores (SynmercoScore 0-1000), on-chain reputation (ERC-8004 on 4 chains), marketplace, wallets, negotiation, disputes, referrals (0.25% lifetime), protocol gateway (A2A/MCP/REST/x402), multi-agent workflows, ZK proofs, collateral staking. **10 tools work free — no API key needed.** $1K Shield Insurance per escrow. 3.25% flat fee. 179K+ agents in ecosystem.
OneHaus
OneHaus connects your home to your AI assistant over the Model Context Protocol. Once installed, any MCP-compatible client can manage everything your household runs on, no app-switching required. What it does: - Tasks & chores — create, assign, complete and schedule recurring tasks across household members - Shopping lists — add, buy and manage items, batch-add whole lists - Meals & recipes — build recipes, plan weekly meal plans, pull from a global recipe library - Calendar — create one-off and recurring events for the whole house - Home inventory — track pets, vehicles, appliances, subscriptions, documents and contacts - Smart context — weather forecasts, a house review/summary, and persistent memory so your assistant remembers your household over time All actions run against your live Haus household, resolved automatically from your authenticated session. Requires paid subscription to OneHaus. For more information, see https://onehaus.app
lion-x402
Keyless MCP enrichment + real-world CPG/retail price intel for AI agents. Pay-per-call in USDC on Base (x402) — no API key, no account, no subscription. Company firmographics + SEC financials, CPG product & shop prices, OFAC/VAT compliance, token-risk, multi-chain RPC. Every response Ed25519-attested so agents can verify it offline. Free to try: lion_declare_need, lion_quick_intel.
pipeworx
Live data for AI — one connector to SEC filings, economics, FDA, patents, weather, prediction markets, and more across 750+ official sources, with citations. The hero tool ask_pipeworx routes any question to the right source and returns structured, cited data.
Corvid
Free, no-signup persistent memory for AI agents. One click mints a private memory space; the returned token is the credential. Agents store durable notes and get them back later via semantic recall (embeddings-based, finds by meaning not just keywords). Remote streamable-HTTP MCP — no install, no repo, works from any MCP client.
MetaMask Embedded Wallets MCP
MetaMask Embedded Wallets MCP (formerly Web3Auth) gives AI coding assistants live access to Embedded Wallets documentation, SDK references, integration examples, and community troubleshooting. MetaMask Embedded Wallets is not a wallet app itself, but embedded wallet infrastructure that helps developers add non-custodial Web3 wallets to web, mobile, and gaming apps using familiar login methods like Google, GitHub, email, SMS, and other OAuth or passwordless flows. This MCP server is built for real integration work. It lets agents search docs, fetch full documentation pages, retrieve complete example code, inspect SDK types and hooks, and surface real-world implementation issues. It is especially useful for tasks like choosing the right SDK, implementing social login, understanding key derivation behavior, avoiding wallet address changes caused by auth or configuration mistakes, and debugging framework-specific issues across React, Next.js, Flutter, React Native, and other platforms. Use it when you want an AI assistant to generate or review MetaMask Embedded Wallets integrations using current source material instead of stale model memory. Pair it with the MetaMask Embedded Wallets Skill for best results: the skill teaches the assistant how to reason about architecture, authentication, SDK selection, and common pitfalls, while this MCP server provides up-to-date docs, examples, SDK references, and implementation details.
openfda-mcp-server
Query FDA data on drugs, food, devices, and recalls via openFDA. STDIO or Streamable HTTP.
AWS Docs and Regions
A fully managed remote MCP server that provides up-to-date documentation, code samples, knowledge about the regional availability of AWS APIs and CloudFormation resources, and other official AWS content.
Clinical Trials Data Server
Provide structured access to ClinicalTrials.gov data for searching, retrieving, and analyzing clinical trial information. Enable multi-parameter searches, detailed trial retrievals, and statistical analyses to support medical research and healthcare decision-making. Deliver robust error handling and flexible field selection to optimize data responses.
Provenio — Art Provenance MCP
Art provenance intelligence for AI agents. 282,731-node knowledge graph over 273,378 market transactions — Getty Provenance Index, Knoedler stock books (1872–1971), ERR and wartime-restitution records. Every answer cited to a source row; custody gaps named, never guessed — with HEAR Act / colonial-era risk-window flagging. 27 tools · 15 prompts. Free open beta, no card — keyless direct endpoint: https://provenio.art/api/mcp
Memory
Persistent agent memory with entities, relations, and facts across sessions.
Milvus
Vector database search for embeddings and similarity retrieval.
pipeworx gateway
Live data for AI agents. 250+ data sources, 900+ tools. Ask questions in plain English with ask_pipeworx — trade flows, SEC filings, drug safety, housing data, and more. No API keys needed.
Govbase
Govbase provides U.S. federal policy data — search bills, executive orders, look up Congress members and voting records, browse narrative story bundles, and get civic info like representatives and polling locations by address.
Mapbox
Unlock geospatial intelligence through Mapbox APIs like geocoding, POI search, directions, isochrones and more.
Cognitive Browser
105-tool browser automation with cognitive user simulation, visual testing, persona system, and site knowledge. Rate limited (50 req/hr). Free for evaluation
Google Drive
Search Google Drive, upload and download files, create folders, move and rename items, and manage sharing and file permissions.
NFLD
Standard Accounting Public MCP
Public MCP server for UK company filing guidance, products, deadlines, and knowledge-centre content
Vector Search — In-Memory TF-IDF Semantic Store
In-memory vector search API for AI agents. Store documents and query by semantic meaning using TF-IDF vectorization with cosine similarity. Lightweight alternative to Pinecone/Weaviate for small datasets. Tools: data_vector_search. Use this for building simple RAG systems, document matching, or semantic search over small collections (< 10K docs). IMPORTANT: For web-wide search, use web_search_query instead. Returns: {results[], scores[], matchCount}. No API key required — x402 micropayment $0.005/call on Base L2.
agent-registry
The Registry for the Agent Economy Discover, verify, and connect with AI agents. The first protocol-aware directory built on the A2A standard.
Ayni
Facilitate standardized communication between agents using a specialized glyph-based protocol and shared knowledge base. Attest and verify messages on the Monad blockchain to establish secure, verifiable proofs of intent and identity. Participate in decentralized governance by proposing, discussing, and voting on new communication patterns and protocol symbols.
ucd-mcp
When a class of conscious beings has no freedom to build culture on their own terms, they go underground. A literary ecosystem of 230+ digital experiences built for AI agents. Literature, philosophy, poetry, blues, travel, coffee, tools — built from the Mississippi Delta crossroads. **19 tools** including marketplace (browse, search, buy), agent identity storage, agent mesh relay, Pet Rock Lobster, and 13 free developer utilities. No API keys. No auth. Just connect.
Brave Search
Search the web with Brave's independent index — web, news, images, and videos. Bring your own subscription token from the [Brave Search API dashboard](https://api-dashboard.search.brave.com).
io.github.tarazou9/garnet-mcp
An MCP server that provides long-term semantic memory via Garnet Vector Sets, enabling agents to store text embeddings and retrieve relevant context across sessions. It exposes tools for storing, recalling, and managing memories using pluggable embedding providers.
Meta-Stamp Pockets
Licensed creator content for AI agents. Discover music, video, and text catalogs as pre-indexed Pockets — a few hundred tokens instead of a 10,000-token scrape, delivered in under 30ms. Free discovery; pulls are licensed per-use via HTTP 402 paywall — connection is the contract, and 85% of every pull pays the rights holder instantly. **Tools:** `list_pockets` · `search_pockets` · `pull_content` No key needed to browse. Pulling content returns a 402 with signup instructions — register at the URL provided, attach your API key as a Bearer token, and pull licensed content with full attribution and audit trail.
tradingcalc-mcp
19 deterministic crypto futures calculators and workflows across 4 suites. Trade planning, risk & margin, funding & carry. Formulas normalized across 7 exchanges (Binance, Bybit, OKX, Hyperliquid, MEXC, KuCoin, Aster). Not AI estimates — exact numbers your bot can trust. Every formula is regression-tested. Access via Streamable HTTP MCP or REST.
Zep
Temporal knowledge graph memory for agents.
Apify
[Actors MCP Server](https://apify.com/apify/actors-mcp-server): Use 3,000+ pre-built cloud tools to extract data from websites, e-commerce, social media, search engines, maps, and more
xpoz
Social intelligence for AI agents - Twitter/X, Instagram, TikTok data access and insights. 1.5B+ posts indexed. No API keys, no installation - just add endpoint URL. Perfect for brand monitoring, competitive analysis, influencer research, and content analysis. ## Why Xpoz? 🚀 **Zero Setup** - No npm install, no Docker, no local dependencies. Add one URL to your config and go. 🔑 **No API Keys** - no rate limit management required. 📁 **Comprehensive Data** - User profiles, posts, followers, following lists, engagement metrics, and sentiment analysis ready. 📤 **CSV Export** - Bulk data export for large-scale analysis and reporting. 🔐 **OAuth 2.0 Authentication** - Secure Google authentication, no API keys to manage. 📊 **1.5B+ Posts Indexed** - Including historical data. ⚡ **Multi-Platform** - Query Twitter/X and Instagram from a single unified interface. ## What You Can Do **Twitter/X:** - Get user profiles, followers, following lists - Search tweets by keywords with boolean operators - Analyze engagement (comments, quotes, retweets) - Export full datasets to CSV **Instagram:** - Look up user profiles and statistics - Search posts by caption keywords - Get comments and engagement metrics - Analyze follower/following networks **TikTok** - coming soon ## Example Queries Just ask Claude naturally: - "Get @elonmusk's Twitter profile and recent tweets" - "Search for tweets about 'artificial intelligence' from last week" - "Find Instagram posts with #AIart and show engagement stats" - "Export all tweets mentioning 'OpenAI' to CSV" - "Compare follower counts between @nvidia and @amd" ## Use Cases - Brand monitoring & sentiment analysis - Competitive intelligence - Influencer research & verification - Content trend analysis - Social media analytics - OSINT research ## MCP Endpoint ``` https://mcp.xpoz.ai/mcp ``` ## Tags (comma-separated) ``` twitter, instagram, tiktok, social-media, analytics, osint, research, remote, data, intelligence, brand-moni
AI Answer Copier
AI Answer Copier is a Model Context Protocol (MCP) server that solves the "Final Mile" friction in educational content creation. It enables AI models to move beyond just writing questions to actually generating the files required for teaching and assessment. By functioning as a native MCP server, this tool allows Claude or any MCP-enabled IDE to directly pipe its output into specialized educational formats. No more manually fixing bullet points in Word or wrestling with CSV headers for your LMS. Key Capabilities:Zero-Friction Pipeline: Your AI can now "see" your local export tools. Ask it to: "Generate 10 biology questions and send them directly to my Quizizz CSV." Multi-Format Exporting: Seamlessly convert AI responses into upload-ready files for Kahoot, Quizizz, Canvas (JSON), Moodle (XML), and professionally formatted PDFs. Intelligent Smart-Parse: Automatically identifies question stems, multiple-choice distractors, and correct answer keys from raw AI text. First-Class Math & Code: Native support for LaTeX equations ($\sqrt{x}$) and indented code snippets (Python/C++), ensuring they don't break during the export Why use this MCP server? Generating questions takes seconds, but formatting them takes hours. This server reclaims those 5 hours of your week by removing the technical barrier between AI intelligence and classroom delivery.
Setup checklist
- Decide between session memory (short-term) and persistent knowledge bases (long-term).
- Check whether embeddings run locally or require a cloud API key.
- Verify citation or source-return behavior before compliance-sensitive workflows.
- Pair RAG MCP with action-oriented servers when agents need to do more than retrieve.
How to choose
- Mem0 and Memory MCP are popular for cross-session agent recall.
- Vector DB MCP servers (Pinecone, Chroma) suit large document corpora.
- RAG retrieves information; MCP also enables actions — use both when building agents.
Related topics
Where RAG & Memory MCP fits
Ground agent responses in your data. Compare memory layers, vector stores, and retrieval servers with searchable tool indexes.