"Search functionality without API key requirement" matching MCP servers:

Demo MCP server that exposes order and customer data as read-only tools for AI assistants, simulating a business API or internal data source.

Enables AI agents to perform comprehensive person and company lookups by integrating directly with the Lusha API for business contact enrichment. It provides tools for bulk contact identification via LinkedIn URLs, emails, or names, alongside detailed company information retrieval.

Enables interaction with mParticle's Data Planning API to manage data plans, retrieve schemas, and govern data workflows via natural language.

Enables AI assistants to interact with the Multilead platform for lead management, email campaigns, conversations, webhooks, and analytics through 74 API endpoints.

Provides comprehensive tools and resources for managing Klaviyo marketing automation, including profiles, lists, campaigns, flows, and more through natural language.

Bytemine MCP Server – Search 130M+ B2B contacts and enrich profiles with verified emails & phone numbers directly from Claude, Cursor, and other AI assistants via the Model Context Protocol.

Enables an AI agent to fetch member profiles and generate deterministic, partner-rule-compliant travel recommendations on a multi-tenant white-label platform.

Enables asking questions in plain language to explore loyalty and promo data through Voucherify API endpoints.

Provides access to Gong.io sales conversation data, enabling users to query calls, retrieve transcripts, list users, and search calls with date filtering and pagination.

Enables Claude Desktop to answer natural-language questions about customers by exposing search, profile, order history, status filter, and spend statistics tools backed by local mock data, with a single-file swap path to Oracle AI Agent Studio later.

An MCP server that connects AI assistants like Claude, Cursor, and Windsurf to the Waitlister API. Create waitlists and manage subscribers through natural language.

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 AI agents to verify email addresses, clean lists, run bulk verification jobs, and manage a Verifly account through natural language, without writing HTTP calls.

Enables interaction with HubSpot CRM through MCP, providing tools to manage contacts, companies, deals, and search/associations via natural language.

LeadFuze MCP Server for contact/company enrichment from email or LinkedIn URL plus email validation. Hosted MCP endpoint: https://mcp.leadfuze.com/mcp (API key required).

An MCP server that enables AI assistants to interact with the CleverTap REST API to manage user profiles, events, campaigns, and reports. It supports multi-project configurations and provides tools for data analysis and campaign management through natural language.

A server for interacting with the Iaptic API, allowing AI models like Claude to query customer, purchase, and transaction data, as well as retrieve statistical insights.

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.

Unofficial MCP server for Siigo Colombian electronic invoicing software that enables AI to manage customers, products, invoices, credit notes, and journals through the Siigo API with configurable safety modes.

Lead generation MCP server for AI agents. Find emails, verify contacts, enrich profiles, and search prospects using Hunter.io, Apollo.io, and Abstract API.

MCP server that lets you talk to your GoHighLevel sub-account in plain English, offering six tools to search contacts, list calendars, check free slots, and book appointments with dry-run safety and explicit error messages.

A read-only MCP server for Rock RMS that allows querying People, Groups, Group Members, and Attendance via its REST API.

An MCP server for the Keila newsletter API that enables management of contacts, campaigns, segments, and senders. It allows users to create, schedule, and send newsletters directly through natural language interactions.

Exposes Shopify Admin API capabilities to LLMs, enabling product, order, customer, and inventory management via natural language.

Enables interaction with Pylon's customer support platform API to manage users, contacts, issues, and knowledge base articles through natural language commands.

Enables interaction with the ChartMogul API to manage subscription data, customer relationships, and sales CRM activities. It allows users to retrieve key business metrics like MRR and churn while performing data operations on plans, invoices, and contacts.

Provides 25 tools to enrich company, person, contact, school, and job data via the Enrich Layer API, enabling lookups, profiles, and contact discovery.

Enables users to search masked contact previews, unlock selected records with approval and credit controls, and prepare suppression-aware CSV exports through hosted Streamable HTTP or a local stdio bridge.

An agent-optimized MCP server for Kit.com (formerly ConvertKit) that enables full management of email marketing campaigns, subscribers, and broadcasts. It provides 13 composite tools covering the entire Kit V4 API with built-in rate limiting and formatted responses for efficient AI interaction.

MCP server for Clay.com API providing people and company enrichment, and Clay table operations.