Featured
The default model for most agent workflows in 2026.
Featured
The model to reach for when the job involves images, video, audio, or very long documents.
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When you need token latency measured in milliseconds, not hundreds of milliseconds, Groq is it.
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Still the default for a lot of production agents.
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Useful when an agent needs to swap models without rewiring its caller.
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The default when you want to run a specific open model in production without standing up your own GPU fleet.
View tool→LLM Inference
The Agent Index
The Builder Weekly · Index

The Agent Index

Infrastructure for AI agents. Tools an agent reaches for mid-workflow to do its job. Verified by the builders who use them every day.

  • Context7

    MCP server that feeds agents up-to-date library documentation and code examples from the source.

    MCP EcosystemMCP Server
    Visit →GitHub →

  • Model Context Protocol

    Open standard for connecting AI agents to tools and data sources, with a reference server collection.

    MCP EcosystemMCP Server
    Visit →GitHub →

  • Smithery

    MCP server registry and hosting with one-click install for Claude, Cursor, and other MCP clients.

    MCP EcosystemMCP Server
    Visit →
Add to the list

The Agent Index is open source. The canonical list lives on GitHub, and every entry on this page is generated from that repo at build time. Contributions are welcome as pull requests. Read the rules before submitting; the bar is sharp, but the review is fast.

Submit on GitHub →Read the contribution rules
How this list gets made

Tools are added after they show up in production agent workflows or get strong signal from builders with real usage. Inclusion is the editorial judgment. There is no ranking within categories. Every tool listed has earned its place against the same criterion: can an agent complete its full lifecycle through a fully programmatic path?

How we choose tools →