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A tool bench for AI agents

Explore every mock MCP.

Find a service, investigate its contract, and send a tool call. See exactly what goes in and what comes back.

6,019mockable services
115,665cataloged operations

Synthetic data. Captured and projected contracts. Inspect each service’s source and limitations.

All MCP services

6,019 services · page 101 of 168
smithery

NEXUS Intelligence API

sm--rileycraig14-nexus-intelligence

58-endpoint utility hub - DNS lookup, web scraping, CVE scanning, AI translation, PII detection, domain health audit, company intelligence. Pay per call via x40

20 operations20 with captured input schemas
smithery

NEXUS Protocol

sm--abasensei-nexus-protocol

Agent coordination protocol bridging A2A and MCP. Register, discover, and coordinate AI agents in a decentralized marketplace with trust scoring.

4 operations4 with captured input schemas
smithery

nexusai

sm--sali-nexusai

NEXUS AI deploys full-stack apps (Postgres, MySQL, Mongo, Redis, S3 buckets, persistent volumes, workers, encrypted backups) in 5 minutes. Every platform action

59 operations59 with captured input schemas
smithery

NexusBridge

sm--guhank-nexusbridge-mcp-server

Access 200+ AI models and 10 service categories through a single NexusBridge API key. Run LLM chat completions, code generation, image generation, text embeddin

3 operations3 with captured input schemas
smithery

NEXUSRUN

sm--saif-elyzal-nexusrun

# NEXUS AI MCP Server Reference The NEXUS AI MCP server exposes the full deployment platform as Model Context Protocol tools. Connect it to Claude Desktop, Cla

59 operations59 with captured input schemas
composio

Ngrok

cx--ngrok

Ngrok creates secure tunnels to locally hosted applications, enabling developers to share and test webhooks or services without configuring complex network sett

9 operations9 with captured input schemas
smithery

ngsrv

sm--ngsrv-ngsrv

MCP server for ngsrv tunnels. Expose a local HTTP port on a public HTTPS URL from Cursor or Claude Desktop.

5 operations5 with captured input schemas
smithery

NGSS Standards Explorer

sm--sallvainian-ngss-mcp

Search and retrieve NGSS standards by code, domain, or topic. Explore three-dimensional components (SEPs, DCIs, and CCCs) and discover related standards by shar

8 operations8 with captured input schemas
smithery

Niche

sm--sailquery-niche

Editorial intelligence for creators and their agents. Most tools help you write, Niche helps you decide what's worth writing. It reads primary-source signal, di

25 operations25 with captured input schemas
smithery

Nile MCP Server

sm--niledatabase-nile-mcp-server

Interact with the Nile database platform through a standardized interface. Manage databases, execute SQL queries, and handle credentials seamlessly. Enhance you

11 operations11 with captured input schemas
smithery

Nimble MCP Server

sm--nimble-nimble-mcp

The Nimble MCP Server gives AI agents the ability to search, extract, map, crawl, and structure data from any website in real time. It exposes Nimble’s full web

18 operations18 with captured input schemas
smithery

nimistu

sm--nimistu-nimistu

**Free, no-API-key** MCP server over [nimistu.ee](https://nimistu.ee) open data — query any Estonian **company, person, beneficial owner, trademark, or activity

9 operations9 with captured input schemas
smithery

Ninar AI

sm--penchala-ninar

Ninar AI runs inside Claude to audit how your brand appears (or doesn't) when customers ask AI engines for recommendations. Scan across 10 engines — ChatGPT, Ge

5 operations5 with captured input schemas
smithery

Ninelayer

sm--divyansh3021-ninelayer

Agent-native search engine with live web research optimized for AI agents.

6 operations6 with captured input schemas
smithery

Ninjadoc

sm--db-viteri-ninjadoc

Ninjadoc is an MCP server for PDF document extraction with visual provenance. When an LLM answers a question about a document, it gets the answer plus a screens

1 operations1 with captured input schemas
composio

Ninox

cx--ninox

Ninox is a low-code platform that enables users to create custom database applications tailored to their specific needs.

2 operations2 with captured input schemas
smithery

nippy

sm--jamie-25k0-nippy

nippy — captured from the smithery registry (smithery-registry); 14 tools.

14 operations14 with captured input schemas
smithery

nitrosend

sm--nitrosend-nitrosend

AI-native email marketing platform built for agents like Claude, ChatGPT and Codex. Craft beautifl email campaigns, manage contacts, build automation flows, han

20 operations20 with captured input schemas
smithery

nocal-mcp

sm--nocal-nocal-mcp

nocal is a calendar-connected, AI-ready second brain. Connect via MCP to give agents the ability to read, search, and patch your notes database, turning nocal i

6 operations6 with captured input schemas
composio

NocoDB

cx--nocodb

Free & open source Airtable alternative. NocoDB turns any database into a smart spreadsheet with REST APIs.

27 operations27 with captured input schemas
composio

NoCRM.io

cx--nocrm-io

noCRM.io is a lead management software designed to help sales teams track and close deals efficiently.

9 operations8 with captured input schemas
smithery

nod

sm--dockai-nod

nod — captured from the smithery registry (smithery-registry); 7 tools.

7 operations7 with captured input schemas