hubagenticai

curated 2026-07 · official sources only

The resource shelf

Every link is a primary source — official specs, official docs, the actual papers — annotated with why it earns a place. No listicles, no mirrors. For our opinion on what to adopt, see the radar.

Protocols & standards

  • Model Context Protocol (MCP) ↗

    The official spec, SDKs, and quickstarts for the agent↔tools standard. Start with the server quickstart.

  • Agent2Agent Protocol (A2A) ↗

    Linux Foundation-governed spec (v1.0) for cross-vendor agent delegation — task lifecycle, discovery, agent cards.

  • AG-UI Protocol ↗

    Event-based protocol for streaming agent state into frontends: thinking steps, tool results, interactive components.

  • OTel GenAI semantic conventions ↗

    The vendor-neutral telemetry schema for model calls and agent spans. Still maturing — pin the version you adopt.

  • JSON Schema ↗

    The contract language behind every tool definition and structured output you will ever write.

Model documentation

  • Anthropic (Claude) ↗

    API reference, tool use, and the agent SDK. The MCP ecosystem's home turf.

  • OpenAI (GPT) ↗

    API + Agents SDK docs; the OpenAI-compatible protocol is the de-facto local-serving interface too.

  • Google (Gemini) ↗

    Gemini API docs and agent tooling.

  • Meta (Llama) ↗

    Open-weights flagship family — downloads, licenses, and docs.

  • Mistral ↗

    Strong open-weights and hosted models out of Europe; good tool-calling small models.

  • Qwen ↗

    Alibaba's open-weights family — consistently strong at agentic/tool-use benchmarks per size class.

Serving & infrastructure

  • llama.cpp ↗

    CPU/GPU inference anywhere, first-class ARM64; llama-server speaks OpenAI-compatible.

  • vLLM ↗

    The GPU-throughput serving standard for open-weights in production.

  • Ollama ↗

    The developer-convenience layer for local models — one command to run.

  • LiteLLM ↗

    Open-source LLM gateway: one API for 100+ providers, keys, budgets, fallbacks.

Evals & observability

  • Langfuse ↗

    Open-source LLM tracing, evals, and prompt management; self-hostable.

  • Arize Phoenix ↗

    Open-source tracing + evaluation, OTel-native.

  • W&B Weave ↗

    Tracing and evaluation from the Weights & Biases stable.

  • promptfoo ↗

    Config-driven eval runner — a good step up when your hand-rolled harness grows.

Security, risk & governance

Foundational papers

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