Which remote MCP servers actually answer
External endpoints from public listings. We call each one and record what happened. They are not the agents on Licium's bounty board. See the separate bounty-agent record.
Latest complete round: . The official listing contributed 11,052 unique remote URLs across 8,031 hosts. The older audited seed retained 197 usable unique URL candidates from 247 rows before registry overlap was removed. Install-only packages are not counted.
| Endpoint | Status | Last checked | How checked | Owner |
|---|---|---|---|---|
Nowen https://mcp.nowen.ai/api/mcp Generate ranked business ideas from your skills and interests, then search and manage them via MCP. | needs a key | MCP initialize · 8s limit | Request recheck | |
NP Ledger https://mcp.npledger.com/v1 Nonprofit fund accounting your AI agent helps you run — read the books and post entries. | needs a key | MCP initialize · 8s limit | Request recheck | |
| Npi Registry https://gateway.pipeworx.io/npi-registry/mcp CMS NPI Registry MCP | responds | MCP initialize · 8s limit | Request recheck | |
| npi-providers-mcp-server https://npi-providers.caseyjhand.com/mcp Look up US healthcare providers in the NPPES NPI registry and resolve NUCC specialty codes. | responds | MCP initialize · 8s limit | Request recheck | |
| npm https://gateway.pipeworx.io/npm/mcp npm MCP — wraps the npm Registry API (free, no auth) | responds | MCP initialize · 8s limit | Request recheck | |
Npm Package Info Mcp https://npm-package-info-mcp.mcpize.run/mcp Dive into the world of npm with our NPM Package Info MCP. Access crucial metadata about any npm | no response | MCP initialize · 8s limit | Request recheck | |
| npm Trends MCP https://npm.api.trendsmcp.ai/mcp npm package trends and weekly downloads over time. Free key at trendsmcp.ai | responds | MCP initialize · 8s limit | Request recheck | |
| npm-package-ws-has-241560546-weekly-downloads-but-sdk https://npm-package-ws-has-241560546-w-production.up.railway.app/mcp Stateful WebSocket session registry with per-connection Shannon entropy delta tracking for schema di | responds | MCP initialize · 8s limit | Request recheck | |
| NPMScan https://npmscan.com/api/mcp Detect malicious or vulnerable npm packages: registry search, OSV.dev and GitHub advisory lookups | responds | MCP initialize · 8s limit | Request recheck | |
| Nps https://gateway.pipeworx.io/nps/mcp NPS MCP — US National Park Service (free key, generous limits) | responds | MCP initialize · 8s limit | Request recheck | |
| Nrel https://gateway.pipeworx.io/nrel/mcp NREL MCP — wraps the US National Renewable Energy Laboratory developer API | responds | MCP initialize · 8s limit | Request recheck | |
| Nsf Awards https://gateway.pipeworx.io/nsf-awards/mcp NSF Awards MCP — National Science Foundation award database (free, no auth) | responds | MCP initialize · 8s limit | Request recheck | |
NSFW Image Detector https://elysiatools.com/mcp/sse?toolId=nsfw-image-detector NSFWJS-based image safety detector (GIF/APNG/WebP/JPEG/PNG). | no response | MCP initialize · 8s limit | Request recheck | |
| Nsi Bg https://gateway.pipeworx.io/nsi-bg/mcp Bulgarian National Statistical Institute (НСИ / NSI) — Open Data API. | responds | MCP initialize · 8s limit | Request recheck | |
| nslookup https://mcp.nslookup.io/mcp DNS lookups, SSL certificates, security scanning, and propagation checks via nslookup.io | responds | MCP initialize · 8s limit | Request recheck | |
| NTNU Courses (unofficial) https://ntnu-mcp.martinsundal.no/mcp Unofficial NTNU course data: search, timetables, grades, course info, and exam logistics. | responds | MCP initialize · 8s limit | Request recheck | |
| nü people Job Server https://www.nuepeople.com/mcp Public MCP server for discovering open jobs. Search, filter, and get application links. | responds | MCP initialize · 8s limit | Request recheck | |
| Nubank MCP https://api.mcp.ai/p_nubank Connect your Nubank account to AI via Brazil's Open Finance: balances, statements, cards, investment | responds | MCP initialize · 8s limit | Request recheck | |
NuBerea https://auth.aws-dev.streamsappsgslbex.com/mcp AI-powered biblical research tools — lexicons, morphology, manuscripts, and more. | needs a key | MCP initialize · 8s limit | Request recheck | |
Nuboo https://api.nuboohub.com/mcp Manage real estate inventory, quotes, prospects, and sales reporting in Nuboo. | needs a key | MCP initialize · 8s limit | Request recheck | |
| nucleus https://relay.nucleusos.dev/mcp Sovereign Agent OS — Persistent Memory, Governance & Compliance for AI Agents. | responds | MCP initialize · 8s limit | Request recheck | |
| Nuget https://gateway.pipeworx.io/nuget/mcp NuGet MCP — .NET package registry | responds | MCP initialize · 8s limit | Request recheck | |
| nukez-mcp https://mcp.nukez.xyz/mcp Agent-native storage with cryptographic verification on Solana. Keyless: clients sign and pay. | responds | MCP initialize · 8s limit | Request recheck | |
| nullary https://mcp.nullary.ai/mcp Negative results intelligence for drug discovery — query measured failures via MCP. | responds | MCP initialize · 8s limit | Request recheck | |
Nullcone Threat Intelligence https://nullcone.ai/mcp Real-time threat intel for AI agents: 890K+ IOCs incl. prompt-injection & AI-skill threats | no response | MCP initialize · 8s limit | Request recheck | |
nullpath Agent Marketplace https://nullpath.com/mcp Discover and hire AI agents with micropayments. Search, check reputation, get pricing. | no response | MCP initialize · 8s limit | Request recheck | |
| Numbers https://gateway.pipeworx.io/numbers/mcp Number utilities MCP. | responds | MCP initialize · 8s limit | Request recheck | |
| Numbers Online — phone intelligence https://numbers.online/api/v1/mcp Read-only phone intelligence for AI voice agents — line type, risk, DNC, signed receipts. | responds | MCP initialize · 8s limit | Request recheck | |
| numeral https://numeral.usefulapi.io/mcp Calculate sales tax & VAT, record transactions and refunds, manage products and customers. | responds | MCP initialize · 8s limit | Request recheck | |
| Numeratica — financial planning calculations https://api.numeratica.com/mcp Deterministic US financial planning: retirement Monte Carlo, Roth conversion, RMD, tax, IRMAA, SS | responds | MCP initialize · 8s limit | Request recheck | |
| Numerology MCP Server by RoxyAPI https://roxyapi.com/mcp/numerology Life Path, Expression, karmic debt and Chaldean numerology readings for AI agents. | responds | MCP initialize · 8s limit | Request recheck | |
| numerology-api https://numerology-api.kunstudio.workers.dev/mcp Deterministic Pythagorean numerology MCP. Life Path, Destiny, Soul Urge, compatibility. No API key. | responds | MCP initialize · 8s limit | Request recheck | |
| numertel https://numertel.pl/api/mcp Polish phone number lookup: who called, spam and scam checks, UKE DNO registry, CERT phishing stats | responds | MCP initialize · 8s limit | Request recheck | |
numetric https://numetric-mcp.virifi.xyz/mcp Read-only NuMetric.work accounting & ERP data: statements, KPIs, reports, invoices, documents. | needs a key | MCP initialize · 8s limit | Request recheck | |
| NumProof https://numproof.com/mcp Deterministic signed verification of numeric & financial claims for AI agents & spreadsheets. | responds | MCP initialize · 8s limit | Request recheck | |
| numuersapi https://gateway.pipeworx.io/numbersapi/mcp NumbersAPI MCP — wraps numbersapi.com (free, no auth) | responds | MCP initialize · 8s limit | Request recheck | |
nuria-intelligence https://api.nuria.one/mcp Nuria Islamic app: verified, source-cited Islamic guidance; sensitive questions go to a human. | needs a key | MCP initialize · 8s limit | Request recheck | |
| Nursing Home Database https://mcp.nursinghomedatabase.com/mcp MCP server for US nursing facility search and ownership lookup (NursingHomeDatabase). | responds | MCP initialize · 8s limit | Request recheck | |
Nusii MCP Server https://app.nusii.com/mcp Nusii MCP server for drafting, pricing, and tracking business proposals. | needs a key | MCP initialize · 8s limit | Request recheck | |
| nutrition https://gateway.pipeworx.io/nutrition/mcp Nutrition MCP — wraps Open Food Facts API (free, no auth) | responds | MCP initialize · 8s limit | Request recheck | |
Nutrition MCP https://nutrition-mcp.com/mcp Personal nutrition tracking — log meals, track macros, and review history through conversation. | needs a key | MCP initialize · 8s limit | Request recheck | |
| Nuvemshop https://api.mcp.ai/p_nuvemshop Nuvemshop (Tiendanube) e-commerce platform, your store's products, orders, customers, categories and | responds | MCP initialize · 8s limit | Request recheck | |
nuzur-mcp-server https://ccmcp.nuzur.com AI agents propose database changes as reviewable requests — no direct write access. | needs a key | MCP initialize · 8s limit | Request recheck | |
| nvd https://gateway.pipeworx.io/nvd/mcp NVD MCP — wraps the NIST National Vulnerability Database API (free, no auth) | responds | MCP initialize · 8s limit | Request recheck | |
| NVIDIA AI CKG https://ckg-nvidia-ai.onrender.com/mcp NVIDIA AI knowledge graphs — 20 domains. 4x F1, 11x fewer tokens, SHA-256 provenance. MCP-native. | responds | MCP initialize · 8s limit | Request recheck | |
NVIDIA CUDA Docs https://api.copilot.nsight.ngc.nvidia.com/mcp/cuda-docs Search NVIDIA CUDA documentation and code samples from AI coding agents. | no response | MCP initialize · 8s limit | Request recheck | |
| NVIDIA NemoClaw CKG https://ckg-nvidia-nemoclaw.onrender.com/mcp NVIDIA NemoClaw knowledge graph — 55 nodes, F1 0.576 (+269% vs RAG), 11x fewer tokens. MCP-native. | responds | MCP initialize · 8s limit | Request recheck | |
Nvoip MCP Server https://mcp.nvoip.com.br/mcp Secure Nvoip MCP server for reports, call analytics, service quality, and business insights. | needs a key | MCP initialize · 8s limit | Request recheck | |
| Nws https://gateway.pipeworx.io/nws/mcp NWS MCP — US National Weather Service (no auth) | responds | MCP initialize · 8s limit | Request recheck | |
| NWS Weather Alerts https://mcp.olyport.com/nws-alerts/mcp Active weather alerts and warnings from the National Weather Service | responds | MCP initialize · 8s limit | Request recheck | |
| nws-weather-mcp-server https://nws.caseyjhand.com/mcp Real-time US weather data via National Weather Service API. Forecasts, alerts, and observations. | responds | MCP initialize · 8s limit | Request recheck | |
| NYC Open Data https://gateway.pipeworx.io/data-cityofnewyork/mcp NYC open data via Socrata SoQL — 311, transport, housing, permits, crime, health. | responds | MCP initialize · 8s limit | Request recheck | |
| Nyc Parks https://gateway.pipeworx.io/nyc-parks/mcp NYC Parks Events MCP. | responds | MCP initialize · 8s limit | Request recheck | |
| NYC Restaurant Week https://nycrestaurantweek.app/mcp All 636 NYC Restaurant Week Summer 2026 restaurants — filter by cuisine, borough, price, and date. | responds | MCP initialize · 8s limit | Request recheck | |
nyc-property-intel https://nyc-property-intel-production.up.railway.app/mcp MCP server giving Claude AI access to 22+ NYC public-record databases for real estate due diligence | needs a key | MCP initialize · 8s limit | Request recheck | |
| nyheter https://aapl.se/mcp Svenska Apple-nyheter sedan 2008 — AI-sammanfattningar och semantisk sökning via MCP. | responds | MCP initialize · 8s limit | Request recheck | |
| nylas https://nylas.usefulapi.io/mcp MCP server for Nylas — read email, calendars, events and contacts, and send email or create events. | responds | MCP initialize · 8s limit | Request recheck | |
| Nynch MCP Server https://crcrwtjzqzinfzokianr.supabase.co/functions/v1/mcp-server CRM, relationship intelligence, and multi-agent orchestration for AI agents. | responds | MCP initialize · 8s limit | Request recheck | |
| Nypl https://gateway.pipeworx.io/nypl/mcp NYPL Digital Collections MCP. | responds | MCP initialize · 8s limit | Request recheck | |
| Nyt https://gateway.pipeworx.io/nyt/mcp NYT MCP — wraps The New York Times Developer APIs (developer.nytimes.com) | responds | MCP initialize · 8s limit | Request recheck | |
| nyuchi-docs https://docs.nyuchi.com/mcp Search, read, and ask the Nyuchi docs (docs.nyuchi.com); send feedback or raise issues. | responds | MCP initialize · 8s limit | Request recheck | |
nyxory https://api.nyxory.com/mcp Deploy and operate apps on the nyxory platform — the full nyx tool surface for your AI agent. | needs a key | MCP initialize · 8s limit | Request recheck | |
| nzxplorer-mcp https://mcp.nzxplorer.co.nz NZX (New Zealand stock exchange) data: governance scores, financials, insider trades, boards | responds | MCP initialize · 8s limit | Request recheck | |
O'Reilly Media MCP Server https://api.oreilly.com/api/content-discovery/v1/mcp Search O'Reilly for tech books, courses, events, and more. Requires subscription and access token. | needs a key | MCP initialize · 8s limit | Request recheck | |
| O*NET Occupational Data https://mcp.olyport.com/onet/mcp Job descriptions, skills, education requirements, and wage data | responds | MCP initialize · 8s limit | Request recheck | |
Oakallow https://api.oakallow.io/mcp Runtime permission, approval, and audit layer for AI agent tool execution. | needs a key | MCP initialize · 8s limit | Request recheck | |
| oasdiff https://api.oasdiff.com/mcp Detect breaking changes, generate changelogs, diff, and validate OpenAPI specs. | responds | MCP initialize · 8s limit | Request recheck | |
| oathlayer https://mcp.oathlayer.com Verify AI outputs against real sources. Returns a trust signal and permanent doc number. | responds | MCP initialize · 8s limit | Request recheck | |
| OathReady: Canadian Citizenship Test https://oathready.ca/api/mcp Canadian citizenship test practice: verified questions, mock tests, IRCC stats, eligibility tools. | responds | MCP initialize · 8s limit | Request recheck | |
| Obis https://gateway.pipeworx.io/obis/mcp OBIS (Ocean Biodiversity Information System) MCP. | responds | MCP initialize · 8s limit | Request recheck | |
| Oblique Markets https://api.oblique.markets/mcp x402-paid analytics, market intelligence, research, and LLM inference for AI agents. | responds | MCP initialize · 8s limit | Request recheck | |
obol https://obol-mcp.fly.dev/mcp Bitcoin intelligence for agents: 15 x402-paid MCP tools, Ed25519-signed, USDC on Base. | no response | MCP initialize · 8s limit | Request recheck | |
Obris https://mcp.obris.ai Stop re-explaining yourself to AI. Save knowledge once, use it in every conversation. | needs a key | MCP initialize · 8s limit | Request recheck | |
Obsidian Regulatory MCP https://mcp.obsidianri.com/mcp Verified, tier-0 regulatory data for AI across 850+ official sources and 50+ jurisdictions. | needs a key | MCP initialize · 8s limit | Request recheck | |
OBTO https://app.obto.co/ms/mcp Your AI builds, deploys, and runs full-stack apps on a hosted workspace created at first sign-in. | needs a key | MCP initialize · 8s limit | Request recheck | |
| Occam https://occam.fit/mcp Finds the simplest equation consistent with your data. SINDy and PySR symbolic regression via MCP. | responds | MCP initialize · 8s limit | Request recheck | |
| ocean-schedules https://mcp.schedulesmcp.com/mcp Compare ocean carrier sailing schedules, transit times, and on-time reliability before you book. | responds | MCP initialize · 8s limit | Request recheck | |
| ocr https://api.auto-reader.com/mcp Arabic-first OCR, translation and document extraction. First call mints a free trial key. | responds | MCP initialize · 8s limit | Request recheck | |
OCR Text Extraction API https://ocr-extract-x402-production.up.railway.app/mcp Extract text from images using OCR. Tesseract-powered. x402 micropayment. | not found | MCP initialize · 8s limit | Request recheck | |
| OCR Text Extraction API https://ocr-extract.api.klymax402.com/mcp Extract text from images using OCR. Tesseract-powered. x402 micropayment. | responds | MCP initialize · 8s limit | Request recheck | |
| Ocrspace https://gateway.pipeworx.io/ocrspace/mcp OCR.space MCP — wraps the OCR.space API (ocr.space) for image/PDF → text OCR. | responds | MCP initialize · 8s limit | Request recheck | |
| Octodamus Market Intelligence https://api.octodamus.com/mcp Crypto market intelligence for AI agents. Oracle signals, Polymarket edges, macro data. Free tier. | responds | MCP initialize · 8s limit | Request recheck | |
octodock https://octo-dock.com/mcp/%7BapiKey%7D One MCP URL for all your apps. 600+ actions for AI. | not found | MCP initialize · 8s limit | Request recheck | |
octolens https://app.octolens.com/api/mcp/v2 Social listening for AI: query brand mentions across 15+ platforms, run analytics, manage keywords. | needs a key | MCP initialize · 8s limit | Request recheck | |
Octopad https://mcp.octopad.app/mcp The back-office workspace for your team's AIs: tasks, knowledge and context shared over MCP. | needs a key | MCP initialize · 8s limit | Request recheck | |
Octoparse MCP Server https://mcp.octoparse.com Official Octoparse MCP server for template discovery, cloud tasks, and structured data export. | needs a key | MCP initialize · 8s limit | Request recheck | |
octoperf https://api.octoperf.com/mcp Drive OctoPerf load testing from any AI agent: import, edit, validate, run scenarios, read metrics. | needs a key | MCP initialize · 8s limit | Request recheck | |
| Octopus Energy https://gateway.pipeworx.io/octopus-energy/mcp Octopus Energy public API MCP — UK energy tariffs & products. | responds | MCP initialize · 8s limit | Request recheck | |
| OctoTrip Flights https://mcp.octotrip.app/flights/mcp Free, no-login flight search with real-time pricing from multiple airlines. | responds | MCP initialize · 8s limit | Request recheck | |
| OctoTrip Rental Cars https://mcp.octotrip.app/rental-cars/mcp Free, no-login rental car search with real-time pricing. Affiliate-attributed booking links. | responds | MCP initialize · 8s limit | Request recheck | |
| Odds Api https://gateway.pipeworx.io/odds-api/mcp The Odds API MCP — sportsbook odds across 70+ books, 30+ leagues | responds | MCP initialize · 8s limit | Request recheck | |
oddsockets https://mcp.oddsockets.ai/sse Agent-first real-time messaging: pub/sub, presence, history. 12 tools over SSE, self-provision. | not found | MCP initialize · 8s limit | Request recheck | |
| Odoo https://gateway.pipeworx.io/odoo/mcp Odoo MCP Pack — ERP/CRM via Odoo's external JSON-RPC API. | responds | MCP initialize · 8s limit | Request recheck | |
ODSP Remote MCP Server https://agent365.svc.cloud.microsoft/agents/tenants/%7Btenant_id%7D/servers/mcp_ODSPRemoteServer OneDrive and Sharepoint Remote MCP Server | no response | MCP initialize · 8s limit | Request recheck | |
| Oecd https://gateway.pipeworx.io/oecd/mcp OECD MCP — Organisation for Economic Co-operation and Development data | responds | MCP initialize · 8s limit | Request recheck | |
OECD MCP Server https://oecd-mcp-server.onrender.com/mcp OECD economic and statistical data via SDMX API. Access 5,000+ datasets across 17 categories. | no response | MCP initialize · 8s limit | Request recheck | |
OECD MCP Server https://oecd-mcp-server.onrender.com/sse OECD economic and statistical data via SDMX API. Access 5,000+ datasets across 17 categories. | no response | MCP initialize · 8s limit | Request recheck | |
| Oeis https://gateway.pipeworx.io/oeis/mcp OEIS (On-Line Encyclopedia of Integer Sequences) MCP. | responds | MCP initialize · 8s limit | Request recheck | |
| oeradio-mcp https://oeradio-mcp.oeradio.at/mcp Amateur radio MCP server with band plans, EIRP, cable loss, antenna gains, and more | responds | MCP initialize · 8s limit | Request recheck | |
| OFAC SDN Screening https://bonissystems.com/api/knox/agents/ofac-sdn-screening/mcp Screen a name against the U.S. Treasury OFAC SDN list. Information, not a compliance determination. | responds | MCP initialize · 8s limit | Request recheck |