"Free APIs and services without commercial fees" matching MCP servers:

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

MCP server for LawPracticeZA, South African legal practice software, providing tools to manage clients, matters, work-in-progress fees, billing, and accounting via the LawPracticeZA API.

An MCP server for Dolibarr ERP/CRM that lets Claude or any MCP-compatible client read and manage thirdparties, commercial proposals, contracts, and invoices directly.

Exposes Atlassian Marketplace vendor APIs as 95 MCP tools, 3 resources, and 4 prompts, enabling LLMs to manage licenses, promotions, reviews, and reporting metrics without writing API calls.

Gives Claude, Cursor, VS Code and other MCP clients safe, structured access to an OpenSolar organisation's projects, contacts, systems, files, commercial settings and Teams sharing via the documented OpenSolar API. Runs self-hosted with your own bearer token, offering curated tools for searching, summarising, comparing, updating and sharing solar project data.

A read-only MCP server for auditing Trafft booking data with tools to list services, employees, appointments, and customers without mutation endpoints.

Enables interacting with Hubspot tools and services through a unified API and the Model Context Protocol.

MCP server for read-only queries and reports from the Astrea (Aurum) legal software. Enables retrieving case information by client, new cases per month, tags, financials (fees/expenses), schedule (hearings, meetings, deadlines, tasks), and case updates for client reports.

Connects to your own company's Protheus ERP via the official REST API, enabling read-only natural-language queries of branches, customers, products, stock, sales, orders, invoice totals, production orders, and MRP purchasing. It also maps which APIs your installation answers and can call custom REST routes, without writing to the ERP.

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.

Exposes a professional services pipeline prediction model with tools to score opportunities, validate inputs, and retrieve model metadata such as win probability, fees, and margin.

Enables read-only investigation of NOVA's Dolibarr accounting and commercial data through an AI assistant, with privacy protection and deterministic accounting rules.

Enables AI agents to safely operate HubSpot CRM contacts, deals, and pipelines via MCP, with caching, idempotency, audit trails, and robust error handling.

Fetch fresh leads and verify emails in one MCP server

Resolves any combination of company name, domain, or LinkedIn URL into the canonical company identity (name, domain, LinkedIn URL) with confidence scores and match method.

Enables AI tools to search and enrich B2B leads, including finding professional emails, company profiles, and filtering people and companies by various criteria.

amoCRM / Kommo CRM for AI agents: leads, contacts, tasks and notes, plus sales analytics - pipeline report with win rate and manager leaderboard, stale deals and overdue tasks.

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

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

MCP server for the Mamba Labs People Finder & Email Verifier actor on Apify. Give it a company domain, name or LinkedIn URL and it returns the people at that company who match your role, seniority and department filters, each as a structured contact record with an optional verified business email.

Enables checking lead rows, CSV files, or Apify datasets for duplicates, email syntax and risk signals, domain issues, missing fields, and stale dates, returning a per-row import, review, or reject verdict so only clean records reach a CRM or sequencer.

Real-time LinkedIn, X (Twitter) and Reddit data for AI agents: profiles, companies, people search, tweets, subreddits, and search. Free start: self-mint a key in one call, no signup, no card.

Enables AI assistants to discover and invoke Vremly API operations through a search-describe-request pattern, allowing them to view and manage shoots, customers, media, and invoices according to API key permissions.

Model Context Protocol server for Kylas CRM lead operations, enabling lead creation, search/filter, and lookup of users, products, and pipelines.

Bitrix24 CRM for AI assistants: search and edit deals, leads, contacts, tasks and timeline comments, plus sales analytics — pipeline report with manager leaderboard, stale deals, overdue tasks. Connects via inbound webhook.

MCP server for Apollo.io B2B data discovery and enrichment, enabling company search, people search, contact enrichment, and organization firmographics through Apollo's REST API.

MCP server for the Housecall Pro API, letting AI assistants read and write Housecall Pro data—customers, jobs, invoices, estimates, scheduling, and more—through natural language.

GoHighLevel MCP server for Claude. 212 tools across 43 modules, including the only programmatic GHL workflow builder (private API, reverse-engineered), funnel + page editor, form builder, pipeline builder, pre-deploy validator, multi-sub-account switching, bulk operations, and full account export. $97 one-time, lifetime updates.

Enables checking CRM contacts to learn their current employer, title, start month, role history, and whether they left, landed elsewhere, or were promoted, returning one flat row per person with match method, source, and source age. It accepts single contacts or bulk lists, works with your own search, enrichment, and email-verification keys, and runs on Apify.

Enables AI agents to perform go-to-market workflows such as company and contact enrichment, CRM querying, and controlled, audited writes to a CRM through MCP tools callable from any MCP client.