"Using npx to run tools directly without requiring an API" matching MCP servers:

MCP server for qualifying and responding to inbound leads in seconds using a multi-agent AI pipeline.

Enables pushing enriched leads into Instantly or Smartlead campaigns with ICP score gating, deduplication, and dry-run previews via an Apify actor.

A read-only MCP server for Portal.io that enables browsing proposals, users, contacts, and catalog items through secure HMAC-signed API requests.

A production-ready MCP server that connects AI assistants to the D-Tools System Integrator platform, enabling natural language management of AV projects, clients, catalogs, tasks, service orders, and purchase orders.

Enables AI assistants to look up customers, orders, products, and stock; take role-restricted actions such as creating orders and handling refunds; enforce business rules; and maintain a tamper-evident audit log.

Exposes internal company services as LLM-callable MCP tools, enabling AI agents to perform business operations like customer management, order processing, and support ticketing through natural language.

Resolves a company domain to its LinkedIn company page URL. Lightweight enrichment tool for sales and prospecting workflows.

Enables MCP clients to search and execute 360 operations across Holded's accounting, sales, inventory, contacts, CRM, projects, team, calendar, inbox, and developer APIs. Supports read and write calls with an API key, including a read-only mode.

Exposes native OnlyFans and Fansly access as MCP tools, letting agents read fans, messages, media, earnings, posts, transactions and subscribers across connected creators, with opt-in outbound writes. It also provides CRM tags, smart links, webhooks and bulk exports through a single API key.

Enables AI agents to interact with ActiveNet OpenAPI services for managing organizations, activities, customers, facilities, and more.

A comprehensive Model Context Protocol (MCP) server that provides complete access to the Recharge Storefront API endpoints. Enables AI assistants to manage subscriptions, customers, orders, and billing through a standardized interface.

Enables AI agents to extract structured firmographic data from public LinkedIn company URLs, returning fields like name, industry, size, and headquarters.

Connects to Salesforce scratch orgs and allows AI to generate and insert realistic nested test records via natural language descriptions using the Composite Tree REST API.

MCP server that provides mock APIs and deterministic seed data for ERP/OMS, WMS, and CRM systems, enabling supply chain data exploration and integration testing.

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.

This MCP server simplifies interaction with the ConnectWise Manage API through API discovery, execution, and a fast memory system for efficient workflows.

Enables interaction with the HaloPSA API for managing tickets, clients, assets, and more through natural language commands in Claude Desktop.

MCP server for B2B lead generation and company search using the Generect Live API. Provides tools to search leads, companies, generate emails, and get lead by URL.

Enables AI-assisted field service management through the Service Fusion API, including job lookup, customer management, dispatch, invoicing, and equipment tracking.

Enables AI agents and scripts to manage bookings, provider assignment, rescheduling, cancellations, customers, quotes, invoices, and dashboard data through a self-hosted API and MCP interface using your own Chrome session.

Enables AI agents and scripts to run a Booksy Biz account through your own signed-in Chrome session, exposing 28 tools for appointments, open slots, time off, clients, services, staff, reviews, Message Blasts, and reports over MCP, REST, or Python. Read-only mode and confirmation-gated client-facing actions let you plan schedules, reschedules, and outreach with human approval.

Self-hosted Fresha API and MCP server in Python: 17 Fresha tools for appointments, clients, services, team and reviews, on the session of your own Chrome. Personal use.

Enables AI agents to read and change jobs, job status, customers, quotes with line items, invoices, quote and invoice email, payments, and Scheduler bookings in an account by reusing the user's own signed-in Chrome session, with no official API keys needed. Ships read-only hints and confirmation prompts for tools that reach other people, and can be run over stdio or streamable HTTP.

Integrates with HubSpot CRM APIs via the Model Context Protocol, enabling management of contacts, companies, deals, tickets, notes, engagements, workflows, and more through natural language.

Sales intelligence for DACH & EU SMEs — lead scoring, ICP fit, CRM enrichment & writeback.

Enables AI agents and scripts to access clients, estimates, invoices, payments, and reports from a user's own Joist account through their Chrome session, over MCP or a local REST API.

Enables AI assistants to access and manage HeadHunter job platform data, including vacancies, resumes, negotiations, and employer settings via 167+ tools.

Enables AI agents to manage GoHighLevel sub-account CRM data, including contacts, custom fields, tags, workflows, and calendar configurations through natural language.

Find professional email addresses from name + company domain. Tests 15+ patterns against MX records with confidence scoring, with pay-per-call via x402.

Enables AI assistants to interact with SalesDrive CRM, allowing order management, product queries, and more through natural language.

Enables MCP clients like Claude Desktop, ChatGPT, Cursor and n8n AI Agents to read and write Perfex CRM records — customers, leads, invoices, projects and tasks — through 148 permission-filtered tools over JSON-RPC 2.0.

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.

MCP server that enables Google ADK agents to triage solar fault signals, retrieve Salesforce diagnostics via hosted MCP prompt templates, and create WorkOrder records when replacements are needed.

Provides tools to interact with Odoo 19's External JSON-2 API, enabling CRUD operations and complex queries on Odoo databases with multi-company support.

Exposes a curated subset of the Officegest API v2 (22 CRUD tools) for managing clients, sales, and stock to AI clients like Claude Code and Claude Desktop.

Enables AI agents to perform CRM operations like creating contacts, managing deals, and updating leads through natural language using the Model Context Protocol.

Enables HG Insights GTM teams to draft and manage outreach, research accounts, look up customer support data, and access CRM, Pylon, Jira, Weflow, and knowledge base tools through Claude Desktop.

Enables AI assistants to enrich contacts and build audiences via the YourICP API. Provides tools to set an API token, submit contact lookups by email or LinkedIn URL, and poll for enrichment results.

Enables users to manage contacts, deals, follow-ups, activities, pipeline summaries, and outreach drafts stored in a local JSON file, with every write requiring an explicit preview and confirmation before it is applied. It operates without network access and never sends messages.

MCP server for the eRezo API that enables managing professional contacts and events directly from Claude, including listing, creating, updating, and deleting contacts, as well as event registration.