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 50
As of Aug 2026
Rank Tool Category From License
01
CursorAI-native code editor, multi-model
Dev tooling
$20/mo
Proprietary
02
LangChainThe model-app framework, batteries in
Agent frameworks
Free
MIT
03
GitHub CopilotInline autocomplete + agent mode
Dev tooling
$10/mo
Proprietary
04
LangGraphStateful multi-agent orchestration
Agent frameworks
Free
MIT
05
Claude CodeAgentic CLI coding, Claude-only
Dev tooling
$20+/mo
Proprietary
06
PineconeManaged serverless vector store
Infrastructure
$20+/mo
Proprietary
07
CrewAIRole-based multi-agent crews
Agent frameworks
Free
MIT
08
LangSmithTracing + eval workflows
Evals
$39/seat
Proprietary
09
LlamaIndexRAG-grounded agent workflows
Agent frameworks
Free
MIT
10
pgvectorVector search inside Postgres
Infrastructure
Free
PostgreSQL
11
OpenAI Agents SDKLightweight agents + handoffs
Agent frameworks
Free
MIT
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

Browse all 50 →
Dev tooling14
1Cursor$20 2GitHub Copilot$10 3Claude Code$20+ 4Windsurf— 5ClineFree
Agent frameworks12
1LangChainFree 2LangGraphFree 3CrewAIFree 4LlamaIndexFree 5OpenAI Agents SDKFree
Evals11
1LangSmith$39 2Langfuse$29 3PromptfooFree 4Braintrust$249 5W&B WeaveFree
Infrastructure13
1Pinecone$20+ 2pgvectorFree 3RedisFree 4GroqUsage 5QdrantFree

Sources

Official pages · checked Aug 2026
Cursorcursor.com✓ Verified
LangChainwww.langchain.com✓ Verified
GitHub Copilotgithub.com/features/copilot✓ Verified
LangGraphgithub.com/langchain-ai/langgraph✓ Verified
Claude Codeclaude.com/product/claude-code✓ Verified
Pineconewww.pinecone.io✓ Verified
CrewAIwww.crewai.com✓ Verified
LangSmithwww.langchain.com/langsmith✓ Verified
LlamaIndexwww.llamaindex.ai✓ Verified
pgvectorgithub.com/pgvector/pgvector✓ Verified
OpenAI Agents SDKgithub.com/openai/openai-agents-python✓ Verified
Langfuselangfuse.com✓ Verified
AutoGengithub.com/microsoft/autogen✓ Verified
Qdrantqdrant.tech✓ Verified
Milvusmilvus.io✓ Verified
Weaviateweaviate.io✓ Verified
Promptfoowww.promptfoo.dev✓ Verified
Chromawww.trychroma.com✓ Verified
Braintrustwww.braintrust.dev✓ Verified
Ragaswww.ragas.io✓ Verified
Semantic Kernelgithub.com/microsoft/semantic-kernel✓ Verified
Arize Phoenixphoenix.arize.com✓ Verified
Clinegithub.com/cline/cline✓ Verified
DeepEvalgithub.com/confident-ai/deepeval✓ Verified
Pydantic AIai.pydantic.dev✓ Verified
DSPygithub.com/stanfordnlp/dspy✓ Verified
Aideraider.chat✓ Verified
LanceDBlancedb.com✓ Verified
Haystackhaystack.deepset.ai✓ Verified
Google ADKgoogle.github.io/adk-docs✓ Verified
smolagentsgithub.com/huggingface/smolagents✓ Verified
Continuecontinue.dev✓ Verified
Zedzed.dev✓ Verified

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.