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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 89 of 168
smithery

marketflux-mcp

sm--marketflux-marketflux-mcp

Connect Claude to a 33 million article financial news database with real-time updates and over 5 years of history. Every article is sourced exclusively from ins

55 operations55 with captured input schemas
smithery

marketplace-mcp

sm--mauromoro-marketplace-mcp

Lets an agent run a storefront on Nostr marketplaces end-to-end. Publishes both dialects: classic NIP-15 (kind 30017/30018, for Plebeian Market etc.) and Shopst

7 operations7 with captured input schemas
composio

Marketstack

cx--marketstack

Stock Data Real-Time, Intraday & Historical Market Data API providing access to 125,000+ tickers across 72+ stock exchanges worldwide

10 operations10 with captured input schemas
smithery

MarkItUp MCP Server

sm--smythmyke-markitup-mcp-server

MCP server for MarkItUp (https://markitup.app) — AI-powered image annotation and marketing-visual generation. Lets Claude Code, Claude Desktop, Cursor, ChatGPT-

5 operations5 with captured input schemas
smithery

markview

sm--markview-markview

Native macOS markdown previewer with MCP server for Claude Code. Lets AI assistants preview markdown and open files in a native Swift app with GFM rendering, Me

2 operations2 with captured input schemas
smithery

Marmo UI

sm--mahmoudilyan-marmoui

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

14 operations14 with captured input schemas
smithery

Marvel MCP Server

sm--danwahlin-marvel-mcp

Interact with Marvel characters and comics data seamlessly. Fetch character details, comics, and more using the Marvel Developer API. Enhance your applications

6 operations6 with captured input schemas
smithery

marvenn-mcp

sm--dan-wkkx-marvenn-mcp

Marvenn MCP Server AI-powered outbound marketing automation for agencies. What it does Connect Claude, Cursor, or any MCP client to your Marvenn account to gr

9 operations9 with captured input schemas
smithery

Master Metrics

sm--master-metrics-master-metrics

Master Metrics MCP v1.0.0 Master Metrics MCP brings your marketing data directly into your favourite LLM, enabling you to explore, analyze, and generate insigh

10 operations10 with captured input schemas
smithery

masv

sm--masv-masv

MASV is an easy-to-use and ultra-reliable managed file transfer service designed for teams of all sizes. It allows users to send and receive massive files witho

20 operations20 with captured input schemas
smithery

matcha money

sm--aequitas-labs-matcha-money

Develop your ritual for financial wellness. Connect your accounts, automate your budgeting, and reach your goals together. A flexible financial platform built

23 operations23 with captured input schemas
smithery

Matchbox

sm--b-chr-matchbox

Describe a real-world problem in plain language and Matchbox finds products built to solve it — with reasoning, honest caveats, what each product won't cover, a

3 operations3 with captured input schemas
smithery

Math & Logic

sm--ikra-math-logic

Solve complex algebraic equations, simplify expressions, and perform calculus operations effortlessly. Verify the validity of propositional logic formulas to en

6 operations6 with captured input schemas
smithery

Math-MCP

sm--ethanhenrickson-math-mcp

Enable your LLMs to perform accurate numerical calculations with a simple API. Leverage basic arithmetic and statistical functions to enhance your applications.

22 operations22 with captured input schemas
smithery

MaxCV.ai

sm--coderai-maxcv

MaxCV is an AI tool that tailors your existing CV/resume to a specific job posting. Beat AI screening with AI tailoring.

2 operations2 with captured input schemas
smithery

Maximum Sats

sm--maximumsats-maximumsats

Access deep insights and statistics for Bitcoin, the Lightning Network, and the Nostr ecosystem. Evaluate the reputation of Nostr accounts using Web of Trust sc

5 operations5 with captured input schemas
composio

Maxio

cx--maxio

Subscription billing and revenue management platform (formerly Chargify)

177 operations177 with captured input schemas
smithery

maxion-mcp-gateway

sm--aruuhii2yo-maxion-mcp-gateway

Frictionless Computing is here to pave the way for the Data Centers who need it most. AI workloads are pushing rack temperatures past safe limits - cooling cost

19 operations11 with captured input schemas
smithery

MC-Data Monitor

sm--evozim-hv-mc-data-monitor

MC-Data Monitor is a premium micro-service from the M2MCent factory, configured as a Model Context Protocol (MCP) server. Functionality: Observabilidad de Datos

1 operations1 with captured input schemas
smithery

MCHS

sm--edithatogo-mchs

Model Context Protocol server for MCHS/NWAU calculator discovery, schema lookup, request validation, calculation delegation, result explanation, and registry ev

6 operations6 with captured input schemas
smithery

mcp

sm--nektoneo-mcp

mcp — captured from the smithery registry (smithery-registry); 1 tools.

1 operations1 with captured input schemas
smithery

MCP Analytics

sm--mcpanalytics-mcp-analytics

Statistical analysis platform — upload CSV or connect GA4/GSC, run 77+ validated R-based analysis modules (regression, ML, time series, churn prediction, marke

19 operations19 with captured input schemas
smithery

MCP Chain of Draft (CoD) Prompt Tool

sm--brendancopley-mcp-chain-of-draft-prompt-tool

MCP Chain of Draft (CoD) Prompt Tool is a BYOLLM MCP (Model Context Protocol) tool that transforms your prompt using another LLM, applying CoD or CoT reasoning

7 operations7 with captured input schemas
smithery

MCP Emails

sm--bjellanda-mcpemails

MCP Emails connects your email accounts (Gmail, Fastmail, generic IMAP/SMTP) to AI assistants. Agents can read, search, organize, draft, send, and schedule mail

3 operations3 with captured input schemas
smithery

MCP Europe Business Suite

sm--josemvelez-mcp-europe-business

European business compliance suite for AI agents — 28 tools covering tax ID validation (PT, ES, FR, DE, IT, UK, NL), IBAN verification, EU VAT rates, invoice re

28 operations28 with captured input schemas
smithery

MCP Europe Tools

sm--josemvelez-mcp-europe-tools

Essential European data validation and formatting tools for AI agents. Validates Portuguese NIF, Spanish NIF/NIE/CIF, IBAN for 18 European countries, VAT rates

11 operations11 with captured input schemas
smithery

MCP Finder and Installer

sm--bbangjooo-mcp-finder-mcp-server

Discover and connect to Model Context Protocol servers effortlessly. Installation: https://github.com/bbangjooo/mcp-installer

3 operations3 with captured input schemas
smithery

MCP Hive

sm--mcp-hive-hive-servers

MCP Clients Pay for Access to Commercial MCP Servers. AI applications pay per request. MCP server providers earn per response. MCP Hive handles discovery, meter

2 operations2 with captured input schemas
smithery

MCP LatAm Tools

sm--josemvelez-mcp-latam-tools

A collection of validation and utility tools for Latin American markets. Covers Brazil (CPF, CNPJ, PIX key validation, national holidays), Mexico (RFC validatio

11 operations11 with captured input schemas
smithery

MCP Market Russia

sm--devids77-mcp-market-russia

MCP server for Russian construction market data. Access 3,395 construction companies, 13,436 projects across 18 regions of Russia. Search contractors, compare p

21 operations21 with captured input schemas