The Index of AI Agents & developer tooling Opens Q4 2026

The ranked index of AI tools.

Every tool checked by a person — what it does, what it costs, how it's licensed — and re-checked every week. One honest chart of what developers actually run, ordered by adoption.

12 Shown of 20
As of Aug 2026
Rank Tool Category From License
01
CursorAI-native code editor, multi-model
Dev tooling
$20/mo
Proprietary
02
LangGraphStateful multi-agent orchestration
Agent frameworks
Free
MIT
03
Claude CodeAgentic CLI coding, Claude-only
Dev tooling
$20+/mo
Proprietary
04
GitHub CopilotInline autocomplete + agent mode
Dev tooling
$10/mo
Proprietary
05
CrewAIRole-based multi-agent crews
Agent frameworks
Free
MIT
06
PineconeManaged serverless vector store
Infrastructure
$20+/mo
Proprietary
07
LangSmithTracing + eval workflows
Evals
$39/seat
Proprietary
08
AutoGenConversation-driven agent teams
Agent frameworks
Free
MIT
09
WindsurfAgentic IDE, multi-model
Dev tooling
$20/mo
Proprietary
10
LlamaIndexRAG-grounded agent workflows
Agent frameworks
Free
MIT
11
QdrantRust-native vector DB, easy self-host
Infrastructure
Free tier
Apache-2.0
12
LangfuseOpen-source tracing + evals
Evals
$29/mo
MIT
Ordered by adoption — search demand, downloads and stars. Pricing & licenses from public pages, Aug 2026 — verify before you buy. Full method → Re-checked weekly

Leaders by category

Top five each · from-price shown
Dev tooling5
1Cursor$20 2Claude Code$20+ 3GitHub Copilot$10 4Windsurf$20 5ClineFree
Agent frameworks5
1LangGraphFree 2CrewAIFree 3AutoGenFree 4LlamaIndexFree 5Semantic KernelFree
Evals5
1LangSmith$39 2Langfuse$29 3Braintrust$249 4PromptfooFree 5RagasFree
Infrastructure5
1Pinecone$20+ 2QdrantFree 3Weaviate$45+ 4ChromaFree 5MilvusUsage

Sources

Official pages · checked Aug 2026
Cursorcursor.com/pricing7 Aug
LangGraphgithub.com/langchain-ai/langgraphMIT
Claude Codeclaude.com/pricing7 Aug
GitHub Copilotgithub.com/features/copilot/plans7 Aug
CrewAIgithub.com/crewAIInc/crewAIMIT
Pineconepinecone.io/pricing7 Aug
LangSmithlangchain.com/pricing-langsmith7 Aug
AutoGengithub.com/microsoft/autogenMIT
Windsurfwindsurf.com/pricing↗ Cognition
LlamaIndexgithub.com/run-llama/llama_indexMIT
Qdrantqdrant.tech/pricingApache-2.0
Langfuselangfuse.com/pricingMIT core
Braintrustbraintrust.dev/pricing7 Aug
Weaviateweaviate.io/pricingBSD-3

One figure carried a correction this week: Windsurf's pricing page now redirects to Cognition after the acquisition — its listed price is under review. This is what "checked by hand" catches that a scraper does not.