Smithery

Smithery is an open registry and platform for connecting AI agents to external tools and services through the Model Context Protocol (MCP). Users can browse servers, connect integrations with managed authentication and credentials, and add tools to compatible agents. Developers can publish MCP servers for distribution, documentation, OAuth configuration, protocol handling, caching, and usage analytics. The public site currently highlights a large server catalog and a gateway model; exact commercial terms depend on the current platform and server configuration.

Ownership update — Arcade.dev announced its acquisition of Smithery on 5 August 2026; Smithery’s current homepage also identifies it as part of Arcade.dev.

✨ Key Features

• MCP server registry — Discover a catalog of tools and integrations for agents.
• Search and categories — Find servers by capability such as web, browser, research, finance, and development.
• Managed connections — Connect tools without building every OAuth flow yourself.
• Credential handling — Manage API keys and tokens through supported connection flows.
• Automatic token refresh — Keep supported credentials valid during a connection lifecycle.
• Secure credential storage — Store credentials using the platform's managed security model.
• MCP gateway — Provide a common connection path to hosted MCP servers.
• Server publishing — Publish URL-based or local MCP servers for discovery and installation.
• Documentation and metadata — Generate or host server pages and MCP metadata.
• OAuth UI — Create authentication UI for servers requiring user configuration.
• Usage analytics — Monitor tool calls and usage patterns after publishing.
• CLI and developer workflows — Use the Smithery CLI and scaffolds to connect or publish servers.

💳 Pricing

• Catalog access — Public browsing and discovery are available; server-specific access may require credentials or provider billing.
• Gateway/server terms — Pricing and limits can vary by hosted server, authentication mode, and current Smithery platform terms.
• Publishing — Public documentation describes publishing and analytics, but does not provide one stable universal price table.

Do not claim every server is free or that Smithery supplies the underlying third-party API access. Review each server's permissions, credentials, provider terms, and transaction requirements.

Pricing status — A continuing free tier and a universal paid plan are not confirmed by the public homepage or documentation. Public catalog access does not establish free hosted execution. Platform, server-provider and underlying API charges must be checked separately.

⚖️ Alternatives Compared

🎯 Use Cases

• Agent integration discovery: Find an MCP server for a needed external capability.
• OAuth simplification: Connect services without implementing every auth flow.
• Developer distribution: Publish an MCP server where compatible agents can find it.
• Server analytics: Measure calls and understand integration usage.
• Prototype agents: Assemble external tools quickly for a proof of concept.
• Team tooling: Standardize available MCP integrations across agent workflows.
• Credential lifecycle: Use managed connection and token-refresh behavior where supported.