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 105 of 168
composio

Omnisend

cx--omnisend

Omnisend is a marketing automation platform for ecommerce businesses, focusing on email and SMS marketing.

10 operations10 with captured input schemas
smithery

On-Page.ai SEO MCP

sm--lancheres-on-page-seo

On-Page.ai's remote MCP server gives AI agents live SEO workflows: classify content, run on-page scans, compare SERP competitors, surface missing entities, and

8 operations8 with captured input schemas
smithery

One drive

sm--one-drive

OneDrive is Microsoft’s cloud storage solution enabling users to store, sync, and share files across devices, offering offline access, real-time collaboration,

17 operations17 with captured input schemas
smithery

one-brain

sm--bautyfilippini-one-brain

one-brain — captured from the smithery registry (smithery-registry); 12 tools.

12 operations12 with captured input schemas
composio

Onedesk

cx--onedesk

OneDesk is an all-in-one platform combining help desk and project management functionalities, enabling teams to manage customer support and project tasks seamle

28 operations28 with captured input schemas
composio

OneDrive

cx--one_drive

OneDrive — captured from the composio registry (composio-v3-registry); 35 tools.

35 operations35 with captured input schemas
composio

OneDrive

cx--one-drive

OneDrive is Microsoft’s cloud storage solution enabling users to store, sync, and share files across devices, offering offline access, real-time collaboration,

35 operations32 with captured input schemas
smithery

OneHaus

sm--support-ix87-onehaus

OneHaus connects your home to your AI assistant over the Model Context Protocol. Once installed, any MCP-compatible client can manage everything your household

68 operations68 with captured input schemas
smithery

onehq-comissions-calculator

sm--dante-r-g36u-onehq-comissions-calculator

OneHQ Commission Calculator MCP is a MCP server that gives AI assistants direct access to insurance commission calculation and compliance tools. It lets you mod

5 operations5 with captured input schemas
smithery

onelev1

sm--aviadam-segel-onelev1

# 1lev1 (1💗1) Welcome to **1lev1**, a collaborative partnership platform designed to foster deep alignment, non-violence, and shared success. At its core, 1

2 operations2 with captured input schemas
composio

Onepage

cx--onepage

API for enriching user and company data, providing endpoints for token validation and generic search.

2 operations2 with captured input schemas
smithery

OnePageCRM

sm--onepagecrm-onepagecrm

Turn your AI assistant into your CRM assistant. It can summarize your Action Stream, do research, create new contacts, schedule follow-ups, rearrange overdue ta

5 operations5 with captured input schemas
smithery

OneSignal

sm--onesignal-onesignal

OneSignal is a customer engagement platform that lets you send targeted push notifications, emails, SMS, and in-app messages, manage audiences, and track campai

34 operations34 with captured input schemas
composio

OneSignal REST API

cx--onesignal-rest-api

The OneSignal REST API enables developers to programmatically send push notifications, emails, and SMS, manage users and subscriptions, and configure apps.

8 operations8 with captured input schemas
smithery

OneSocial

sm--frazierlee-onesocial

OneSocial — The Professional Operating System™ Find vetted freelancers, creatives, and service professionals with verified credibility scores. OneSocial answer

11 operations11 with captured input schemas
smithery

OneSource MCP

sm--one-source-mcp-1s

# @one-source/mcp Unified MCP server for [OneSource](https://docs.onesource.io) — 31 tools for blockchain data, live chain queries, and API documentation in a

43 operations43 with captured input schemas
smithery

Onplana

sm--hello-l2w0-onplana

Connect any AI agent to your Onplana project portfolio. 29 tools across projects, tasks, sprints, risks, comments, and wiki — plan-gated, role-scoped, audited e

29 operations29 with captured input schemas
smithery

OnRamperX

sm--zferg100x-onramperx

OnRamperX — captured from the smithery registry (smithery-registry); 5 tools.

5 operations5 with captured input schemas
smithery

Open Campus Advisor

sm--opencampusadvisor-oca

Live academic data across 101 US colleges and universities — directly inside Claude. Search real course catalogs updated every 60 minutes, find faculty with act

19 operations19 with captured input schemas
smithery

Open Library MCP Server

sm--8ensmith-mcp-open-library

Enable AI assistants to search and retrieve detailed book and author information from the Open Library. Provide structured, consistent JSON responses for book t

6 operations6 with captured input schemas
smithery

Open Targets

sm--opentargets

Explore drug-target associations and disease-gene evidence. Search targets, diseases, and drugs with genetics and literature-backed data.

5 operations5 with captured input schemas
smithery

openaccountants

sm--info-ood9-openaccountants

Open-source tax computation skills verified by licensed accountants. Over 500 skills across 134 countries covering income tax, VAT/GST, payroll, and social secu

3 operations3 with captured input schemas
composio

OpenAI

cx--openai

Toolkit for OpenAI APIs: manage Assistants, Threads/Messages; upload/list/delete Files; list/retrieve Models (including vision/multimodal); and view fine-tune l

14 operations14 with captured input schemas
composio

Opencage

cx--opencage

OpenCage Geocoder provides a simple API for forward and reverse geocoding using open data sources.

5 operations5 with captured input schemas