RAG MCP Servers

X

Xero

Dev Tools

Remote

Interact with the accounting data in your business using our official MCP server

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

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.

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.

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Webex

AI & Memory

Remote

A Model Context Protocol (MCP) server that provides AI assistants with comprehensive access to Cisco Webex messaging capabilities.

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Todoist

Dev Tools

Remote

Full implementation of Todoist Rest API for MCP server

C

cortex

Search & Web

Remote

Self-hosted MCP server exposing a brain's tool registry (vault search, vault access, and connector tools) to MCP clients like Claude Code, scoped to the box owner.

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.

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.

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.

**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.

S

Square

AI & Memory

Remote

A Model Context Protocol (MCP) server for square

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.

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.

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Miro

Dev Tools

Remote

Miro MCP server, exposing all functionalities available in official Miro SDK.

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.

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YouTube

Search & Web

Remote

Fetch YouTube subtitles

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ClickHouse

Databases

Remote

Query your [ClickHouse](https://clickhouse.com/) database server.

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 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.

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.

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.

C

Corvid

AI & Memory

Remote

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.

**Your company's brain for AI agents.** Quelvio continuously understands your organization's knowledge across every connected system — what's authoritative, what's recent, what's persistent, what's temporary, and what should be forgotten. Returns cited answers grounded in your authoritative sources, refusing when the corpus doesn't actually answer the question. ## What makes Quelvio different - **Cross-document supersession** — when sources conflict, surfaces the current truth and explicitly names what it supersedes - **Authority-weighted retrieval** — weights documents by who said them on the relevant topic - **Refuses on weak context** — when the corpus doesn't actually answer, says so. No hallucinated numbers, no fabricated citations - **Cross-source synthesis** — reasons across Slack, Confluence, Notion, Drive simultaneously with explicit source attribution - **Lifecycle awareness** — tracks current vs deprecated content, flags stale procedures ## Tools - `query_knowledge` — search across all connected sources with optional synthesis modes (fast / standard / deep) - `list_domains` — discover what knowledge domains your tenant has indexed - `get_source_detail` — chunk-level provenance for any cited result ## Setup 1. Sign up at https://quelvio.com — 5GB indexed + 2 queries/day free tier 2. Connect your sources (Google Drive, SharePoint, Confluence, Slack, Notion, GitHub) 3. Add this MCP server to your client 4. Complete OAuth on first tool call ## Authentication OAuth 2.1 with PKCE. Per-employee identity propagation — each query is scoped to the individual employee's permissions in source systems. ## Pricing Per Knowledge Token model. Paid plans scale with usage and seats.

Query FDA data on drugs, food, devices, and recalls via openFDA. STDIO or Streamable HTTP.

# DomainKits MCP Domain MCP server for AI assistants. DomainKits MCP connects Claude, GPT, Gemini, and other AI assistants to domain data, turning them into domain agents that can search, analyze, and act on market data through natural conversation. ## What is this? Check availability with pricing. Search newly registered, expired, and deleted domains. Analyze WHOIS, DNS, and keyword value. Track registration trends and market movements. Pair with [DomainKits Skills](https://github.com/ABTdomain/domainkits-skills) to give your AI agent domain industry workflows for deeper analysis. ## Features ### Search Tools | Tool | Description | |------|-------------| | `nrds` | Monitor newly registered domains, spot viral trends | | `aged` | Find established domains with 5-20+ years history | | `expired` | Discover domains entering deletion cycle | | `deleted` | Search just-dropped domains available for standard registration | | `active` | Scan live websites and acquisition targets | | `ns_reverse` | Reverse lookup by nameserver | | `unregistered_ai` | Find unregistered short .ai domains (3-letter, CVCV, VCVC, CCVV patterns) | | `domain_changes` | Domain change detection, actively monitors 4M+ domains for transfers, expirations, new registrations, and NS changes | | `price` | Registration and renewal prices by TLD | ### Query Tools | Tool | Description | |------|-------------| | `dns` | Query DNS records (A, MX, NS, TXT, etc.) | | `whois` | Get registration details and dates | | `safety` | Check domain reputation via Google Safe Browsing | | `tld_check` | Check keyword availability across all TLDs | | `available` | Instant availability check with pricing | | `market_price` | Check secondary market listings and price estimates | ### Analysis Tools ⚠️ | Tool | Description | |------|-------------| | `keyword_data` | Google Ads keyword data: volume, CPC, competition | > ⚠️ Analysis tools require a registered account. [Sign up free](https://domainkits.com/login) ### Trend T

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.

M

Memory

AI & Memory

Local

Persistent agent memory with entities, relations, and facts across sessions.

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Milvus

Databases

Local

Vector database search for embeddings and similarity retrieval.

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 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.

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Mapbox

Search & Web

Remote

Unlock geospatial intelligence through Mapbox APIs like geocoding, POI search, directions, isochrones and more.

Search Google Drive, upload and download files, create folders, move and rename items, and manage sharing and file permissions.

Public MCP server for UK company filing guidance, products, deadlines, and knowledge-centre content

The Registry for the Agent Economy Discover, verify, and connect with AI agents. The first protocol-aware directory built on the A2A standard.

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.

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Next.js Tailwind Assistant

Design ★ 4,057

Remote

Your comprehensive AI companion for building modern Next.js applications with React and Tailwind CSS. This MCP server provides instant access to complete documentation, production-ready components, and battle-tested design patterns abstracted from professional templates.

A

Ayni

Dev Tools ★ 3,017

Remote

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.

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Brave Search

Search & Web ★ 87,579

Remote

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).

Search LOC digital collections, Chronicling America newspapers (full OCR), and LC Subject Headings.

Z

Zep

AI & Memory

Local

Temporal knowledge graph memory for agents.

A

Apify

Search & Web

Remote

[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

Social media intelligence for AI agents: search and analyze Twitter/X, Instagram, Reddit, and TikTok through natural language. Billions of posts indexed, including historical data. No social media API keys, no installation, just add the endpoint URL. Perfect for brand monitoring, competitive analysis, influencer research, market research, and OSINT. ## 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 keywords in captions - Get comments and post engagement **Reddit:** - Search posts and comments by keywords across all subreddits - Pull full threads with comment trees - Find and explore subreddits **TikTok:** - Search posts by keywords and hashtags - Look up users and their posts - Get comments and engagement data ## Why Xpoz? - One subscription covers all four platforms - Pre-indexed data: fast keyword search over billions of posts, including historical - Natural language queries via any MCP client (Claude, ChatGPT, Cursor) - Free tier to start, no credit card required Get started at https://xpoz.ai

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.

Search biomedical literature across 36 million citations. Find papers, abstracts, and related articles from MEDLINE and life science journals.

Manage and explore forum communities by searching topics, reading posts, and viewing user profiles. Facilitate communication through chat channels, draft management, and categorized content discovery. Streamline interactions with tools for filtering topics and generating post summaries or replies.

# NWO Robotics MCP Server Control real robots, IoT devices, and autonomous agent swarms through natural language — powered by the [NWO Robotics API](https://nwo.capital). --- ## What This Server Does This MCP server exposes the full NWO Robotics API as 64 ready-to-use tools. Any MCP-compatible AI agent (Claude, ChatGPT, Cursor, etc.) can use it to: - Send natural language instructions to physical robots - Run Visual-Language-Action (VLA) inference on live camera feeds - Plan, validate, and execute multi-step robot tasks - Monitor sensors, detect slip, and fuse multi-modal data - Train robots online with reinforcement learning - Register and manage agent identities on Base mainnet via the Cardiac biometric ID system No local installation needed. The server runs on Render and is ready to connect. --- ## Tools Overview ### 🤖 VLA Inference & Models Run Vision-Language-Action inference on any supported robot. Send a text instruction and camera images, receive joint action vectors in real time. Supports auto model routing, ultra-low-latency Cloudflare edge inference (28ms avg), and WebSocket streaming at up to 50Hz. `vla_inference` · `edge_inference` · `list_models` · `get_model_info` · `get_streaming_config` --- ### 🦾 Robot Control & State Query live robot state (joint angles, gripper, battery, position), execute pre-computed action sequences, and fuse camera + lidar + thermal + force + GPS sensor inputs into a single inference call. `query_robot_state` · `execute_actions` · `sensor_fusion` · `robot_query` · `get_agent_status` --- ### 🗺️ Task Planning & Learning Decompose complex instructions into ordered subtasks, execute them step by step, poll progress, and log outcomes so the model learns and improves with every run. `task_planner` · `execute_subtask` · `status_poll` · `learning_recommend` · `learning_log` --- ### 🔑 Agent Management Self-register a new AI agent in under 2 seconds, check your monthly API quota, upgrade tiers by paying ETH, and ma

B

Boar blockchain MCP (basic)

Cloud & Infra ★ 6,463

Remote

Free, keyless MCP server with 50 read-only blockchain tools for Bitcoin, Ethereum, and Mezo. No installation, no API key required - just add the URL to your MCP client and start querying balances, transactions, blocks, ENS names, ERC-20 tokens, smart contracts, and more. Runs on Cloudflare's global edge network via Streamable HTTP. All tools are strictly read-only and stateless.

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Paper Search (arXiv + Semantic Scholar + OpenAlex)

Search & Web ★ 4,064

Remote

Unified academic paper search for AI agents. search_all queries arXiv, Semantic Scholar and OpenAlex at once, de-duplicates the same work across corpora (by DOI/title) and re-ranks with Reciprocal Rank Fusion so papers found by several sources rank highest. read_paper returns full arXiv text with formulas as LaTeX. Plus citation graphs, author metrics (h-index), recommendations and full-text snippet search across 220M+ papers. Remote streamable-HTTP, no auth required.

Analyze chess positions using powerful engines like Stockfish, Leela, and Maia. Retrieve games, puzzles, and opening statistics directly from Lichess and specialized databases. Visualize moves and games through interactive board renders and PGN viewers.

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Mem0

AI & Memory

Local

Long-term memory layer for AI agents across conversations.

Search live food safety data from FDA, FSIS, CDC, and city health departments (NYC, Chicago, SF, Seattle, Boston). 5 tools: search recalls, outbreaks, alerts, restaurant inspection articles, and food safety guides. Data aggregated from 25+ public government sources via Panko Alerts (alerts.getpanko.app).

The cultural GPS for AI commerce. 504,472 aesthetic worlds mapped across 193 dimensions — from dark academia to k-beauty to quiet luxury. 3,154 autonomous agents update intelligence every 48 hours. 9 tools: product recommendations with affiliate links, brand cultural position, trend intelligence, commerce gap predictions, world comparisons, and live cultural signals. Free. Open source. MIT licensed. 14 AI companies already consume our data at 33,000+ requests/hour. Open Source Commerce For All.

Search Naver across news, blogs, books, encyclopedia, cafe posts, Knowledge iN, local places, images, shopping, and professional documents. Returns Korean-language results and Korea-local content that global search engines often miss.

A Model Context Protocol server that taps access to real-time bus and train information across 12 Malaysian cities. Get live arrivals, vehicle tracking, and route details from Rapid KL, Rapid Penang, and various BAS.MY services across Malaysia. Currently covering the following areas: - Kangar - Alor Setar - Penang - Klang Valley (Kuala Lumpur, Selangor, Putrajaya) - Melaka - Johor Bahru - Kota Bharu - Kuala Terengganu - Kuching - Ipoh - Seremban More areas to be covered soon! Note: this is NOT an official MCP server by the Government of Malaysia or anyone from Prasarana Malaysia, Ministry of Transport (MOT), Agensi Pengangkutan Awam Darat (APAD), KTM Berhad, or operators involved in BAS.MY operations.

C

Contexta

Search & Web

Remote

Persistent memory and knowledge graph for AI assistants — keyword + vector + graph search.

C

copilot-memory-mcp

AI & Memory

Local

A local MCP server that provides persistent, project-scoped semantic memory for GitHub Copilot in VS Code, using ChromaDB and embeddings for RAG-based memory retrieval across sessions.

A free, hosted MCP server for local-LLM hardware decisions. Ask whether a model fits your GPU, Mac, or mini-PC, which GGUF quant to download, the cheapest machine that runs it, and the buy-vs-rent-vs-API cost, from a maintained catalog of models and machines plus a monthly used-GPU price feed. No install, no API key. Tools: can_i_run_it, recommend_quant, cheapest_hardware_for_model, recommend_hardware, compare_hardware, cost_compare, get_used_gpu_prices, list_models, list_hardware. Works with Claude, Cursor, Cline, and any MCP client.

The server provides immediate access to millions of academic papers through Semantic Scholar and arXiv, enabling AI-powered research with comprehensive search, citation analysis, and full-text PDF extraction from multiple sources (arXiv and Wiley open-access). - No API key is required.