"A tool or resource for improving prompt writing" matching MCP servers:

Official Cursor plugin enabling natural-language management of your SideShift company—discovering creators, managing campaigns and contracts, communicating with your network, and inspecting analytics through a secure OAuth-linked MCP server.

Finds, filters, and verifies local-business leads on demand; every returned email carries a verification receipt (verifier, verdict, timestamp). Credit-based with per-key spend budgets; 25 free validated leads at signup.

Provides read-only access to the Planning Center People API, enabling natural language queries for people, households, background checks, and lists.

Live LinkedIn data for AI agents: 44 tools for profiles, companies, jobs, posts, people search, job-change signals and email finding. Hosted remote server (streamable HTTP) - your agent never touches your own LinkedIn account. 300 free credits on signup, no card. Dockerfile in repo bridges stdio clients to the hosted endpoint via mcp-remote.

Unifies CRM and productivity tool APIs behind a single interface, letting AI agents and developers create, update, delete, and list records across Zoho, HubSpot, Odoo, Google Sheets, Gmail, and Google Calendar without handling platform-specific schemas.

Freento MCP is a native Magento 2 extension that implements the Model Context Protocol (MCP) — an open standard for connecting AI assistants to external data sources. This server acts as a secure, direct bridge between your Adobe Commerce / Magento 2 store and LLM-powered assistants (like Claude, ChatGPT, and others), allowing you to manage and audit your store using natural language.

Enables read-only access to InvoiceNinja data, including invoices, expenses, clients, and tax reports, for AI assistants like Claude.

Build custom CRMs and Customer Hubs as code you own. Eleven skills take a business goal to checked-in source: modules that generate their own migration, service, REST resource and Admin screens; deterministic workflows; versioned policies; audit and trace. The approval boundary is a merged test, not a prompt instruction.

Connects Claude to Jobber to manage clients, jobs, invoices, quotes, and scheduling through natural language.

A Model Context Protocol (MCP) server for the CallRail API v3 that exposes call tracking, text messaging, form submissions, and more as MCP tools for reading and writing to your CallRail account.

Enables MCP clients to work with Bitrix24 tasks, projects, CRM entities, and universal lists via the Bitrix24 REST webhook. It provides 46 validated tools for reading and writing business data without caching or storing derivative copies.

MCP server wrapping the fpp CLI as a single generic run tool for freelancer client payment-risk checks.

A localhost server that enables Claude to administer a firm's TimeLog account via the TimeLog REST API, allowing natural language project management and resource planning.

Enables querying and managing Salesforce records using SOQL, CRUD operations, and schema exploration through natural language or direct tool calls.

MCP server for Syncro MSP that enables managing customers, tickets, assets, contacts, and invoices through a decision tree architecture for efficient tool navigation.

A Model Context Protocol server for HaloPSA with decision tree architecture for efficient tool loading, enabling Claude to manage tickets, clients, agents, and assets.

Provides interactive tools to explore AFAS customer data and employee leave information, including bubble charts, leave balance reports, and detailed leave cards.

Bridges AI assistants to HubSpot CRM via OAuth2.1+PKCE, enabling tool access through OpenClaw or stdio MCP.

A minimal local HTTP MCP mock server for development and testing, providing predictable tool responses with OAuth token support and zero dependencies.

Provides Claude agents with CRM contact lookup, action logging, and prompt cost auditing tools. Includes a Streamlit UI to demo the same tools without an MCP client.