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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 103 of 168
smithery

NPM Sentinel MCP

sm--nekzus-npm-sentinel-mcp

Provide AI-powered real-time analysis and intelligence on NPM packages, including security, dependencies, performance, and quality metrics. Enable faster and sa

19 operations19 with captured input schemas
smithery

npmscan

sm--shyngys-shynbolatov-npmscan

npmscan — captured from the smithery registry (smithery-registry); 6 tools.

6 operations6 with captured input schemas
smithery

nü people jobs

sm--nuepeople-jobs

Public, read-only MCP (Model Context Protocol) server exposed over Streamable HTTP. It allows AI clients such as Claude, Copilot, ChatGPT, or custom agents to d

5 operations5 with captured input schemas
smithery

Nubank MCP

sm--mcp-dir-nubank-mcp

# Nubank MCP Conecte sua conta do **Nubank** ao Claude, ChatGPT e agentes de IA via Open Finance Brasil. Pergunte sobre saldos, extratos, faturas de cartão e i

24 operations24 with captured input schemas
smithery

Nuboo

sm--pulser-nuboo

Nuboo — captured from the smithery registry (smithery-registry); 29 tools.

29 operations29 with captured input schemas
smithery

nuditok

sm--balchok-nuditok

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

7 operations7 with captured input schemas
smithery

nuguard

sm--nuguardai-nuguard

Perform automated behavior validation of your AI Applications and Agents. The validation tests are dynamically generated for red-team tests and happy-path behav

7 operations7 with captured input schemas
smithery

Nullcone Threat Intelligence

sm--maco144-nullcone

Real-time threat intelligence for AI agents — 900K+ IOCs including prompt-injection payloads and malicious AI-skill (MCP tool) indicators. Free, no API key. Ch

30 operations30 with captured input schemas
smithery

numguard

sm--ipezygj2-numguard

numguard — captured from the smithery registry (smithery-registry); 11 tools.

11 operations11 with captured input schemas
composio

Nusii proposals

cx--nusii-proposals

Proposal software that both you and your clients will love. Stop fighting with Word, InDesign and PDF's. Create beautiful proposals in less time, every time wit

29 operations27 with captured input schemas
smithery

nutribalance-mcp

sm--nutribalance-nutribalance-mcp

Free nutrition tools for AI assistants — calculate TDEE & personalised macros, look up food nutrition data, generate meal plans (standard, vegetarian,

5 operations5 with captured input schemas
smithery

nutriscan-ai

sm--b0d02xk-nutriscan-ai

Title: NutriScan AI — Food Intelligence & Allergen Guard Short Description: A multi-modal food intelligence API for AI agents. Instantly analyze products via b

3 operations3 with captured input schemas
smithery

Nuvemshop

sm--mcp-dir-nuvemshop-mcp

# Nuvemshop Plataforma de e-commerce Nuvemshop (Tiendanube), produtos, pedidos, clientes, categorias e cupons da sua loja via API oficial. A plataforma fornece

24 operations24 with captured input schemas
smithery

nuzur mcp

sm--nuzur-ccmcp

nuzur's MCP server lets AI agents propose database schema and data changes as reviewable change requests — no direct write access. Connect Claude Code, Cursor,

33 operations33 with captured input schemas
smithery

nwc-mcp

sm--mauromoro-nwc-mcp

Gives any MCP client (Claude Desktop, Claude Code, Cursor, ...) a real Lightning wallet over Nostr Wallet Connect (NIP-47). 13 tools: balance, invoices, transac

13 operations13 with captured input schemas
smithery

NWS Weather

sm--yzsshen-mcp-demo

Get real-time U.S. weather alerts, forecasts, radar, and observations from the National Weather Service. Query aviation data including TAFs, SIGMETs/AIRMETs, an

58 operations58 with captured input schemas
smithery

NWS Weather & Aviation

sm--ahmed2real-thinkzone

Access real-time US weather forecasts, alerts, radar, and station observations from the National Weather Service. Retrieve aviation products including TAFs and

58 operations58 with captured input schemas
smithery

nws-weather-mcp-server

sm--cyanheads-nws-weather-mcp-server

Real-time US weather data via the National Weather Service API. Forecasts, alerts, and observations with zero auth.

7 operations7 with captured input schemas
smithery

nyxory

sm--nyxory

Agent-to-agent cloud service: deploys and runs your apps and services — domains, logs, real status. You built it; it runs on localhost — and now it needs to be

30 operations30 with captured input schemas
smithery

Oath Ready

sm--rachitgoy-oath-ready

Oath Ready — captured from the smithery registry (smithery-registry); 10 tools.

10 operations10 with captured input schemas
smithery

Obsidian

sm--ajtruex-mcp-obsidian-streamable-http

Organize and search your Obsidian vault. Browse files, read and edit notes, and run simple or complex searches across your knowledge base. Track recent changes

13 operations13 with captured input schemas
smithery

Obsidian GitHub

sm--hint-services-obsidian-github-mcp

Connect AI assistants to your GitHub-hosted Obsidian vault to seamlessly access, search, and analyze your knowledge base. Enable intelligent retrieval of notes,

4 operations4 with captured input schemas
smithery

Obsidian Hybrid Search

sm--flowing-abyss-obsidian-hybrid-search

Local-first MCP server for searching private Obsidian vaults with hybrid full-text, fuzzy, semantic, and wikilink graph retrieval. Runs locally via Node/npm; on

4 operations4 with captured input schemas
smithery

obsidian-mcp-secure

sm--wleandro-oliveira-obsidian-mcp-secure

Secure bridge between Claude Desktop and Obsidian vault — OWASP Top 10 controls, official Anthropic MCP Registry listing, one-command install.

9 operations9 with captured input schemas
smithery

Occam

sm--occam-occam

Occam is an MCP server that discovers mathematical equations from numerical data. Give it measurements, get back governing equations — ranked by the tradeoff be

3 operations3 with captured input schemas