Smithery – MCP Tools in One Server, Pay-as-You-Go

TL;DR

TL;DR: Smithery is a marketplace of 300+ MCP tools — weather, crypto, search, DNS, finance, and more — that you can connect to AI agents with auth and credentials handled for you, priced pay-as-you-go.

Source and Accuracy Notes

⚠️ This section is MANDATORY. All links must be verified from actual source, not guessed.

• Project page: smithery.ai ← MUST visit and verify
• MCP server: smithery.ai/servers/scotia1973/api-hub2 ← MUST read
• License: SaaS; no open-source license applies to the platform
• HN launch thread: not a Hacker News submission; product launch via smithery.ai
• Source last checked: 2026-07-02

What Is Smithery?

Smithery is an MCP (Model Context Protocol) tool marketplace. It lets you connect AI agents to hundreds of pre-built tools — things like weather APIs, crypto price feeds, DNS lookups, web search, QR code generators, JWT decoders, and currency converters — without managing auth keys or credentials yourself.

The platform acts as a middleware layer between your AI agent and the underlying services. Smithery handles authentication, credentials, and session management so you do not have to.

How It Works

Browse and Connect

Each tool on Smithery has a dedicated page showing its name, a short description, and how many times it has been used. Tools are listed with usage counts — for example, Exa Search shows 41k uses and Tavily shows 5k uses — which gives a rough sense of community adoption.

Authentication Handled for You

One of Smithery’s core value propositions is credential management. Rather than setting up API keys for each underlying service, you authenticate once through Smithery and the platform propagates your credentials to connected tools.

Pricing: Pay-as-You-Go

Smithery uses a pay-as-you-go model. Rather than a monthly subscription, you pay per call. The API Hub2 server (334+ free tools) is available at $5 per 500 calls, with each call consuming one credit.

Some tools like thelocalintel.com (20 MCP tools) charge $0.01–$0.05 per call and offer a free discovery tier.

MCP Protocol

All tools on Smithery implement the MCP protocol, making them compatible with any MCP-compatible AI agent or client. This means you can swap tools in and out without changing your agent’s core logic.

Available Tool Categories

The Smithery catalog includes tools across a wide range of categories:

• Web search — Exa Search, Tavily
• Utilities — QR codes, UUIDs, password generators, JWT decode, hash functions
• Finance — crypto prices, currency conversion
• DNS — DNS lookup, SSL certificate checks
• Geocoding — location-based lookups
• Health — health calculators
• Code analysis — code quality and analysis tools
• Data conversion — format transformers
• Web scraping — content extraction
• Reference data — static data sets

Setup

Smithery tools are accessed through an MCP-compatible client. You configure your MCP client to point at Smithery’s server endpoints, authenticate with your Smithery account, and then the tools become available to your agent.

Specific server URLs are listed on each tool’s Smithery page. For example, the API Hub2 MCP server is available at smithery.ai/servers/scotia1973/api-hub2.

Practical Evaluation Checklist

• 300+ MCP tools in one marketplace
• Pay-as-you-go pricing (no monthly commitment)
• Auth and credential management handled by the platform
• MCP protocol means broad agent compatibility
• Usage counts shown per tool (community adoption signal)
• Free discovery tier available on some servers
• SaaS only — no self-hosted option

Security Notes

• Smithery acts as a credential intermediary — your API keys for underlying services are stored by Smithery
• Review Smithery’s own security and data handling policies before connecting production agents
• Some tools require their own API keys (e.g., Tavily, Exa Search) — these are managed through Smithery but still represent third-party access to your data

FAQ

Q: Is Smithery free to use? A: Smithery itself is free to browse. Tool access is priced per call. Some servers like API Hub2 charge $5 per 500 calls. Individual tools may have their own pricing tiers.

Q: What MCP clients work with Smithery? A: Any client implementing the MCP protocol should be compatible. Smithery provides server endpoints that conform to the MCP spec.

Q: Do I need my own API keys for the underlying services? A: It depends on the tool. Some tools are available through Smithery’s shared quota; others require you to bring your own API key for the underlying service.

Q: Can I self-host Smithery? A: No. Smithery is a hosted SaaS platform. There is no self-hosted version available.

Q: How is Smithery different from building tools directly? A: Smithery’s main value is saved setup time — you get pre-built, MCP-compatible tools without managing auth, credentials, or session state yourself.

Conclusion

Smithery solves the “which tool for which job” problem for MCP-compatible agents by curating 300+ pre-built tools in one place. The pay-as-you-go pricing makes it easy to try without a subscription commitment, and the platform handling auth removes one of the bigger friction points in connecting agents to real-world services.

If you are building an MCP-compatible agent and want to avoid wiring up individual service integrations, Smithery is worth a look. Browse the catalog at smithery.ai.