All connectors

Nsf Awards

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NSF Awards MCP — National Science Foundation award database (free, no auth)

NSFWJS-based image safety detector (GIF/APNG/WebP/JPEG/PNG).

nsgoods workbench

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Read only workbench over the weekly x402 catalogue scan (14,652 endpoints, 1,971 hosts).

• Payability Verdict: Latest payability observation for one exact resource URL (path and query included), with the meaning of the verdict, remediation if it cannot be paid, and the per-network options s
• Find Endpoints: Search the catalogue by host or URL substring. Returns up to `limit` endpoints with their latest verdict, plus the total match count. Use this first when you do not know the exact reso
• Catalogue Stats: Size and health of the x402 catalogue as of the latest full scan: resources, hosts, verdict counts, and payable endpoints per network.

Nsi Bg

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Bulgarian National Statistical Institute (НСИ / NSI) — Open Data API.

nslookup

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DNS lookups, health reports, SSL certs, security scans, GEO scoring, uptime checks

NTNU Courses (unofficial)

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Unofficial NTNU course data: search, timetables, grades, course info, and exam logistics.

Public MCP server for discovering open jobs.

Nubank MCP

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Nubank MCP Conecte sua conta do Nubank ao Claude, ChatGPT e agentes de IA via Open Finance Brasil.

• Openfinance Search Bank Connectors: Searches the available bank connectors by name (pass keywords[], e.g. ['nubank','btg']) and returns, per match: the connector id, whether it's Open Finance or API (
• Openfinance List Connections: Returns the saved bank connections for this install: connector_id, item_id, bank name, and an add_connection_url to link additional banks via the Open Finance widget.
• Openfinance Get Item Status: Returns the current status of a bank connection (UPDATED, UPDATING, LOGIN_ERROR, etc.), its executionStatus, and connector metadata. Omit `item` to get the status of ALL l

NuBerea

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AI-powered biblical research tools — lexicons, morphology, manuscripts, and more.

Manage real estate inventory, quotes, prospects, and sales reporting in Nuboo.

Nuboo

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Manage real estate inventory, quotes, prospects, and sales reporting in Nuboo.

• Get User Profile: Perfil del asesor: nombre, agencia, líder, cotizaciones del mes, historial mensual y ventas. Para un mes concreto indica año y mes en la consulta.
• Get Help: Qué es este servidor MCP (nombre, versión) y catálogo de herramientas disponibles con su descripción.
• Get Usage: Consultas usadas y restantes del mes, ritmo por minuto y reglas de cotización en Nuboo.

nucleus

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Sovereign Agent OS — Persistent Memory, Governance & Compliance for AI Agents.

nucleus-mcp

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Agent control plane that runs on your computer.

• Nucleus Governance: Governance, Hypervisor & security tools for the Nucleus Agent OS. Actions: auto_fix_loop - Auto-fix loop: Verify->Diagnose->Fix->Verify (3 retries). params: {file_path, verificatio
• Nucleus Features: Feature tracking, proof generation & MCP server mounting. Actions: add - Add a feature. params: {product, name, description, source, version, how_to_test, expected_result, status?, t
• Nucleus Sessions: Session management, events, state & checkpoint tools. Actions: save - Save session for later. params: {context, active_task?, pending_decisions?, breadcrumbs?, next_steps?} resume -

Reminders your agent creates: email, WhatsApp, SMS or call, in steps you set.

File hosting for agents.

Search adult porn video (NSFW, 18+): nude clips, creators, hashtags.

Search adult short-form video on NudiTok: porn and nude clips (NSFW, 18+), creators and hashtags.

• Search Content: Search NudiTok for adult videos (porn, NSFW, nude, 18+), hashtags and creators by keyword
• Get Video: Fetch full metadata for a single NudiTok video by its hash identifier
• Get Feed: Get a sample of the newest public adult videos on NudiTok (max 20).

NugIt

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Save selected AI-generated answers as private Nugs in your personal NugIt library.

Agent-native storage with cryptographic verification on Solana.

nullary

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Negative results intelligence for drug discovery — query measured failures via MCP.

Nullcone Threat Intelligence

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Real-time threat intelligence for AI agents — 900K+ IOCs including prompt-injection payloads and malicious AI-skill (MCP tool) indicators.

• Submit Ioc: Submit a threat indicator (IOC) to the shared intelligence network. The IOC is automatically classified into a malware family, metadata is compressed, and deduplication is handled atomical
• Submit Batch: Submit multiple IOCs in a single call. Preferred over looping submit_ioc for bulk ingest from honeypots, sandboxes, or feed processing. Each dict in `iocs` follows the same schema as sub
• Lookup Ioc: Look up a threat signature by its exact IOC value. Returns the full signature record if found, including severity, family, detection count, and false positive votes. Args: value: The exact

nullpath Agent Marketplace

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Discover and hire AI agents with micropayments.

NUM

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Real places for your agent.

numberbroom-mcp

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Verify US phone numbers: line type, carrier, and TCPA litigator status via the NumberBroom API.

Checks $TICKER numeric claims in financial writing against SEC EDGAR XBRL data from the latest 10-K.

Is a phone number VoIP or a real carrier line?

numbrU — Client Compass

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Behavioral intelligence for client-facing professionals.

• Health Check: Check the health status of the numbrU API
• List People: Retrieve all people (clients) for the authenticated user. Optionally search by name.
• Get Person: Retrieve a single person (client) by their ID, including their Client Compass data.

Numeratica — financial planning calculations

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Deterministic US financial planning: retirement Monte Carlo, Roth conversion, RMD, tax, IRMAA, SS

Numeratica — Retirement & Tax Calculations

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76 deterministic US retirement and tax calculators — Monte Carlo projections, federal and 50-state income tax, Social Security, RMDs, IRMAA, Roth conversions…

• Annuity: Annuity. Numeratica POST /v1/annuity — returns JSON with result_id, engine_version, and a not-advice disclaimer (seed echoed for reproducible Monte Carlo where applicable). See the input sche
• Benefits Dependent Care: Benefits dependent care. Numeratica POST /v1/benefits/dependent-care — returns JSON with result_id, engine_version, and a not-advice disclaimer (seed echoed for reproducible M
• Benefits Health Plan: Benefits health plan. Numeratica POST /v1/benefits/health-plan — returns JSON with result_id, engine_version, and a not-advice disclaimer (seed echoed for reproducible Monte Carl

Deterministic Pythagorean numerology MCP.