"Exploring Gemini Services or Tools That Don’t Require an API Key" matching MCP connectors:

Connect your AI to any database — PostgreSQL, MySQL, or SQL Server — in seconds.

The agent-native cloud: database, functions, AI, storage, computers. 50 tools, one API key.

Check shipping costs for all logistics services in Indonesia.

AMZScout Skill + MCP gives AI agents live access to real Amazon marketplace data across 14 Amazon marketplaces. Analyze any ASIN, validate product ideas, research niches, compare competitors, discover profitable keywords, and build data-driven PPC strategies using trusted Amazon insights instead of AI assumptions. Works with Claude, ChatGPT, Cursor, and any other MCP-compatible AI client. To connect, you'll need an AMZScout API plan and authorize your account. Get access and view pricing here: https://learn.amzscout.net/amazon-product-api-for-ai-agents

Build, validate, deploy — HTTP APIs, cron jobs, webhooks and MCP tools — from your AI client. Air Pipe MCP token as a bearer credential, e.g. 'Authorization: Bearer <token>'. Create one at https://app.airpipe.io/

Forklift & aerial-lift compliance records for warehouses — read-only demo tools.

Airtable MCP Pack — wraps the Airtable REST API v0

Read-only MCP server for HolyDB: find Catholic parish Mass times by location and time.

Search, compare & filter 102,191 European car variants — 180 specs, 19 languages, EV data.

Registry of companies selling AI agents identity, phone, email, addresses, money, legal, insurance

Vérification B2B française : SIRET, SIRENE, dirigeants RNE, santé d'entreprise. Hébergé en France.

Zero-key temporary JSON database for agents: one tool call, no signup, no OAuth, no API keys.

Public-registry routing map by entity kind. Read-only reference data, not a determination.

Deterministic safety, correctness & cost gate that vets Postgres SQL before your AI agent runs it.

Comprehensive PostgreSQL documentation and best practices, including ecosystem tools

China's apparel supply chain data for AI: 1,000+ suppliers, 350+ fabrics, 170+ clusters.

Reporting and queries over Astrea (Aurum), Brazilian legal-practice software: cases per client, cale

It connects with Smart Data models database with more than 1000 open licensed data models and helps you to create applications and systems interoperable with existing standards or real applications

Read-only analytics for Convex apps, queryable via MCP from Claude, Cursor, and other clients.

A unified biomedical graph database that integrates 50+ primary data sources — genes, proteins, compounds, diseases, pathways, and clinical data — into a single queryable graph with billions of cross-reference edges. Its native MCP server gives LLMs direct access to structured, authoritative biomedical data, complementing their reasoning with reliable identifiers and up-to-date database content.