The best free MCP servers, registries and toolkits (6)

Every option in the catalog for when you need to connect an AI assistant to your own tools and data — 6 MCP servers, registries and toolkits, 6 of them free or freemium, with the pricing tier printed on every row.

6tools listed
6free or freemium
1with no paid plan at all
1sub-categories covered

Best Free MCP servers, registries and toolkits — straight answers

What are the best free MCP servers, registries and toolkits?

Flocci AI Tools lists 6 of them, ordered free tiers first: MCP Registry (Official), Cloudflare MCP, Composio, Glama and Smithery. Every one of them is free or has a free tier. Each entry states what it uniquely does rather than a score.

Which of these are completely free?

1 on this page are marked fully free with no paid plan at all: MCP Registry (Official). The remaining 5 are freemium, trial or paid, and each is labelled with its exact tier so nothing surprises you at sign-up.

How is this list ordered?

Free tools first, then freemium, then trial, then paid, and alphabetically inside each tier. Nobody pays to appear higher: Flocci AI Tools carries no ads, no sponsored slots and no paid listings, so the order reflects price and nothing else.

All 6 tools, free tiers first

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Best Free MCP servers, registries and toolkits: pricing tier, category and the capability each tool is listed for.
ToolPricingTypeListed for
MCP Registry (Official)FreeMCP EcosystemThe canonical open-source specification and docs for the Model Context Protocol
Cloudflare MCPFreemiumMCP EcosystemBuild and deploy remote MCP servers directly on Cloudflare Workers with built-in OAuth
ComposioFreemiumMCP EcosystemManaged auth + tool-call infrastructure for agents across 250+ apps
GlamaFreemiumMCP EcosystemIndexes and security-scans thousands of MCP servers for compatibility/safety
SmitheryFreemiumMCP EcosystemMarketplace of 14,000+ hosted MCP servers with one-click connect
Zapier MCPFreemiumMCP EcosystemTurns any of Zapier's 9,000+ app integrations into callable MCP tools for any AI client
free
  • The canonical open-source specification and docs for the Model Context Protocol
  • Reference server/client SDKs and the official server registry
  • Backed across the ecosystem — Claude, ChatGPT, VS Code, Cursor, MCPJam all implement it

Cloudflare MCP

MCP Ecosystem
freemium
  • Build and deploy remote MCP servers directly on Cloudflare Workers with built-in OAuth
  • Ships an Agents SDK for stateful, durable AI agents alongside MCP hosting
  • Runs on Cloudflare's free-tier-eligible Workers platform, scaling to global edge

Composio

MCP Ecosystem
freemium
  • Managed auth + tool-call infrastructure for agents across 250+ apps
  • Free tier: 20,000 tool calls/month with community support
  • Ships both MCP servers and native SDKs for major agent frameworks

Glama

MCP Ecosystem
freemium
  • Indexes and security-scans thousands of MCP servers for compatibility/safety
  • API gateway for connecting to MCP servers programmatically
  • Free account tier plus paid gateway/enterprise options

Smithery

MCP Ecosystem
freemium
  • Marketplace of 14,000+ hosted MCP servers with one-click connect
  • Handles OAuth/credential plumbing automatically for MCP tool auth
  • Connections reusable across Claude, GPT and other MCP clients

Zapier MCP

MCP Ecosystem
freemium
  • Turns any of Zapier's 9,000+ app integrations into callable MCP tools for any AI client
  • Pre-authenticated connections avoid per-app OAuth setup for agent builders
  • Included on all Zapier plans (including free), billed against existing task quota

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