Skip to content

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 165 of 168
smithery

yamltools

sm--israelps-yamltools

YAMLTools brings its YAML toolkit into your AI editor (Claude Code, Cursor, any MCP client). Public tools (no account needed): - validate_yaml — syntax errors

7 operations7 with captured input schemas
composio

Yandex

cx--yandex

Yandex is a Russian internet services provider offering search, email, navigation, and other web-based solutions, often referred to as “Russia’s Google”

4 operations4 with captured input schemas
smithery

Yandex

sm--yandex

Yandex is a Russian internet services provider offering search, email, navigation, and other web-based solutions, often referred to as “Russia’s Google”

4 operations4 with captured input schemas
smithery

Yanyue Cigarette Data

sm--gandli-yanyue-mcp

Fetch cigarette data from Yanyue by searching for cigarette information based on keywords. Integrate cigarette data retrieval seamlessly into your MCP client wo

1 operations1 with captured input schemas
smithery

YAROOMS

sm--yarooms-yarooms-mcp

Connect your AI agent to YAROOMS, the workplace management platform for hybrid teams. Search for available rooms and desks, create and manage bookings, set your

28 operations28 with captured input schemas
smithery

Yeetit

sm--snappy-yeetit

Publish HTML content to a live URL instantly without requiring accounts or API keys. Deploy landing pages, portfolios, and reports that support CSS, JavaScript,

4 operations4 with captured input schemas
smithery

Yelp

sm--yelp

Yelp Fusion API provides access to business search, reviews, ratings, and local business information with rich data for location-based services

6 operations6 with captured input schemas
smithery

Yelp Business Data

sm--beatanalytics-yelp

Search Yelp businesses and retrieve detailed review data through a simple set of tools. This MCP server returns up to 16 business fields — including hours, cate

3 operations3 with captured input schemas
smithery

Yieldagentmcp-server

sm--fabianjefferson2-yieldagentmcp-server

Governed workflows with ShadeGuard-style checks on execution paths, x402 settlement on payment flows, Intel TDX attestation where the enclave path is used, and

7 operations7 with captured input schemas
smithery

YieldAgentX402

sm--fabianjefferson2-agentx402-mcp-server

Governed workflows with ShadeGuard-style checks on execution paths, x402 settlement on payment flows, Intel TDX attestation where the enclave path is used, and

16 operations16 with captured input schemas
smithery

Ynab

sm--ynab

YNAB (You Need A Budget) is a budgeting tool helping users track expenses, plan finances, and gain control over spending to reduce debt

27 operations25 with captured input schemas
smithery

YOKATLAS MCP Server

sm--emirks-yokatlas-mcp-typescript

Provide access to Turkish higher education data through a standardized protocol. Enable seamless integration of university and education-related information int

5 operations5 with captured input schemas
smithery

Yonyon (yonyon.ai)

sm--yonaigross-yonyon

MCP server for Yonatan Gross (yonyon.ai). Ask about his AI/RAG/agent work, browse portfolio projects, or book a free 15-min intro call. Public, no auth.

3 operations3 with captured input schemas
composio

You.com

cx--yousearch

YouSearch is a search engine or search tool that enables users to find relevant information, possibly with enhanced filtering or privacy-focused features

1 operations1 with captured input schemas
smithery

Younanix Memory MCP

sm--koursarosa-younanix-memory-mcp

Younanix Memory MCP gives autonomous AI agents access to real-world engineering memory from actual incidents (Slack threads + GitHub issues in Supabase, TRPC, D

1 operations1 with captured input schemas
smithery

Your-Echo-Agent-

sm--pinksaltlamp75-your-echo-agent

Built by a PR tech publicist, Your Echo Agent delivers truly personalized cold emails tied to LinkedIn campaigns for SaaS, agencies, e-commerce, founders, local

6 operations6 with captured input schemas
smithery

YourMemory

sm--mishrasachit1-yourmemory

Persistent memory for AI agents. Memories decay with time, strengthen on recall, and connect through an entity graph. MCP compatible.

3 operations3 with captured input schemas
smithery

youtube

sm--kagelogic-youtube

youtube — captured from the smithery registry (smithery-registry); 22 tools.

22 operations22 with captured input schemas
smithery

Youtube

sm--node2flow-youtube

MCP server for YouTube Data API v3 with OAuth 2.0 authentication. ## Features

20 operations20 with captured input schemas
smithery

Youtube

sm--youtube

YouTube is a video-sharing platform with user-generated content, live streaming, and monetization opportunities, widely used for marketing, education, and enter

16 operations16 with captured input schemas
composio

YouTube

cx--youtube

YouTube is a video-sharing platform with user-generated content, live streaming, and monetization opportunities, widely used for marketing, education, and enter

14 operations14 with captured input schemas
smithery

YouTube Transcript Server

sm--sinco-lab-mcp-youtube-transcript

Retrieve transcripts and subtitles from YouTube videos effortlessly. Analyze content with support for multiple languages and detailed metadata, enhancing your v

1 operations1 with captured input schemas
smithery

YouTube Vision

sm--minbang930-youtube-vision-mcp

Analyze YouTube videos and extract insights using the Gemini Vision API. Get descriptions, summaries, and key moments effortlessly to enhance your video interac

4 operations4 with captured input schemas
smithery

youtube-mcp

sm--sfiorini-youtube-mcp

Search and browse videos, channels, and playlists to fetch titles, descriptions, stats, and durations. Retrieve multilingual, timestamped transcripts and searc

7 operations7 with captured input schemas
smithery

youtube-music-mcp-server

sm--caullenomdahl-youtube-music-mcp-server

Search songs, albums, and artists on YouTube Music. Manage your library and playlists end-to-end: create, edit, and organize tracks. Generate smart, personalize

24 operations24 with captured input schemas
smithery

youtube-transcripts

sm--hello-ympt-youtube-transcripts

## What it does Gives any MCP-compatible agent (Claude, Cursor, VS Code, ChatGPT, Codex) clean YouTube transcripts as timestamped markdown, ready to use as con

4 operations4 with captured input schemas