AI agent frameworks compared — 2026

Data-driven comparison of 11 major AI agent frameworks from the Nerq index of 5M+ assets. Published 2026-03-12.

11
frameworks compared
22,976
total agents using these
Anthropic
most adopted

comparison table

frameworkagentsavg trusttop agentlanguagenew (30d)
Anthropic 7,067 71.6 williamzujkowski/strudel-mcp-s (92.9) Python 3,238
OpenAI 5,925 68.8 SWE-agent/SWE-agent (92.5) Python 2,296
LangChain 2,546 67.9 FunnyWolf/agentic-soc-platform (91.3) Python 969
MCP 1,932 73.0 williamzujkowski/strudel-mcp-s (92.9) Python 1,043
Ollama 1,784 69.4 FunnyWolf/agentic-soc-platform (91.3) Python 729
HuggingFace 1,126 68.8 FunnyWolf/agentic-soc-platform (91.3) Python 443
AutoGen 1,062 68.2 ccmanager (90.9) Python 338
CrewAI 780 67.3 santosomar/AI-agents-for-cyber (87.4) Python 273
LlamaIndex 424 62.3 xerrors/Yuxi-Know (89.1) Python 42
A2A 168 65.6 GoogleCloudPlatform/agent-star (90.1) Python 27
Semantic Kernel 162 61.6 agent-openai-java-banking-assi (82.8) Python 16

adoption — agent count

Number of agents in the Nerq index using each framework

Anthropic
7,067
OpenAI
5,925
LangChain
2,546
MCP
1,932
Ollama
1,784
HuggingFace
1,126
AutoGen
1,062
CrewAI
780
LlamaIndex
424
A2A
168
Semantic Kernel
162

average trust score

Mean trust score of agents using each framework (0-100)

MCP
73
Anthropic
72
Ollama
69
OpenAI
69
HuggingFace
69
AutoGen
68
LangChain
68
CrewAI
67
A2A
66
LlamaIndex
62
Semantic Kernel
62

methodology

Framework association is determined from the frameworks array in the Nerq agent database. An agent is counted under a framework if that framework appears in its declared dependencies, metadata, or detected integrations. Trust scores are the Nerq Trust Score v2 — a composite of security practices, compliance, maintenance activity, community trust, and ecosystem compatibility. Data updates hourly from the live index.

related

State of AI Assets Q1 2026 · Best Coding Agents · Benchmark API · Weekly Signal

Data from the Nerq index. JSON: /v1/agent/stats · API docs · all reports