"Services or tools that don't require a separate API key" matching MCP connectors:

Drive real Android & iOS devices and web browsers from natural language for mobile + web QA. 145+ tools across device control, app management, automation sessions, browser automation, and flow recording / replay. Bearer-auth — get a token at robotactions.com → Profile → API Tokens.

Agentic scheduling & booking for field service: availability, jobs, customers, crews, fleet.

Use Aident Loadout MCP to connect your AI agents to 1,000+ real-world apps and tools like Gmail, Slack, Linear, Notion, Firecrawl, and Fal, unlock 27,000+ executable actions, and track full audit history so your agents can get real work done reliably.

Manage tasks, sprints and daily planning in chat. ProWoDo's connector lets Claude, ChatGPT and other AI agents create and update tasks, plan sprints, write daily standups and assign work via natural language. 50+ tools, OAuth 2.0 secured.

Physical mail API for AI agents. Send letters, certified mail. Sandbox + live keys via MCP.

Microapp offers premium utility tools for humans and AI agents, accessible at microapp.io and through this MCP endpoint.

Secureship MCP gives AI assistants access to a multi-carrier shipping API covering rate comparison, label generation, package tracking, pickup scheduling, address book management, shipment history, customs documents, and more — across carriers like UPS, FedEx, Purolator, Canpar, and others. Browse 150+ live endpoint schemas, parameters, and auth details — always current, never stale.

Fill any PDF form from your AI agent — in a single tool call.

Multi-carrier shipping functionality with built-in, discounted carrier accounts. Compare rates, generate PDF shipping labels, schedule pickups and track packages in automated way or in your chatbox, no coding required. This is a demo server that is functional with no account needed and no auth. For production use please find our production version.

Read-only fantasy analysis for ESPN, Yahoo, and Sleeper leagues via MCP

Mila is an AI-native collaborative platform for documents, spreadsheets, and slide presentations. The Mila MCP server lets AI assistants create, read, update, and manage office documents programmatically. 23 MCP tools covering documents, sheets, slides, and servers. Get your API key at https://mila.gg/api-keys.

Text your own phone when a run finishes or needs you. A key can only message its own number.

Fill standard legal agreement templates (NDAs, SAFEs, NVCA docs, employment) as DOCX files.

Let agents send content-free push notifications to a paired phone via MCP.

Apideck Unified API MCP — 330 tools across 200+ SaaS connectors (accounting, CRM, HRIS, ATS).

Self-hosted MCP gateway: turn any API, database or MCP server into AI connectors — no code.

Freshdesk MCP Pack — helpdesk ticket and contact management via Freshdesk API v2.

Automate Google Ad Manager: campaigns, line items, creatives, inventory, reporting — 51 tools.

ship-on-friday MCP — wraps StupidAPIs (requires X-API-Key)

Translate MCP — wraps LibreTranslate API (https://libretranslate.com/)