developer tooling and infrastructure for ai agents

Recent window: last 5.3 months (2026-04-28 → 2026-10-06), compared with the prior 5.3 months.

horizontal · 435 members · Data as of 2026-10-09

These products provide execution sandboxes, evaluation harnesses, security layers, and observability tooling for building and running autonomous AI agents. They are primarily used by software engineers, AI developers, and security teams who deploy agentic workflows. What distinguishes this cluster is its focus on the underlying developer infrastructure, runtime safety, and testing rather than end-user application features.

Metrics

Stage: crowded
Recent count: 318
Prior count: 90
Total count: 435
Momentum: 253.33
Attention: 0.45
Crowding: 0.98
Concentration: 0.86
Opportunity: 0.38

Opportunity components

Attention: 0.45
Low crowding: 0.02
Momentum (normalized): 0.88
Low concentration: 0.14

Source split

github: 126 (0.40)
hn: 112 (0.35)
ph: 46 (0.14)
yc: 34 (0.11)

Dominant source: github · Divergence: 0.29

Similar niches

desktop AI assistants and agent platforms (0.86)
AI agent developer infrastructure and tools (0.84)
developer infrastructure for AI agents (0.82)
ai security and penetration testing agents (0.81)
developer tools for AI coding agents (0.79)
memory systems for ai agents (0.77)
developer tooling for coding agents (0.76)
AI agent infrastructure and operations (0.74)

Monthly trajectory

Members

Name	Source	Upvotes ▼	Launched
unreal-agent	GITHUB	1922	2026-09-21
ARTEX	GITHUB	735	2026-10-08
Osaurus	PH	535	2026-07-13
open-dot	GITHUB	488	2026-09-29
Harden	PH	396	2026-09-09
Continue? Y/N: A 60-second game about AI agent permission fatigue	HN	386	2026-05-28
Agnost AI	PH	289	2026-08-25
Raccoon AI	PH	277	2026-03-12
Cofia: AI automations that write themselves	YC	267	2026-03-05
routeVSCODE	GITHUB	239	2026-09-10
skillbox	GITHUB	222	2026-09-17
claude-siri-ai	GITHUB	206	2026-09-14
Discord-Server-Raider	GITHUB	201	2026-10-02
brewery-ai	GITHUB	198	2026-10-04
ToolReplay	GITHUB	180	2026-09-14
Progress AI Observability	PH	168	2026-08-07
Voker	PH	160	2026-05-19
repopilot	GITHUB	153	2026-09-18
CreateOS Sandbox	PH	153	2026-07-21
Intent-Router	GITHUB	129	2026-09-22
Alexandria by Firecrawl	PH	125	2026-09-23
Yolobox	HN	122	2026-01-12
TinyAIArena watch AI agents battle it out	HN	120	2026-09-27
museai	GITHUB	114	2026-09-29
Corelayer: AI on-call engineer for regulated industries	YC	108	2026-01-14
JarvisCore	PH	104	2026-10-02
laya-vs-jev	GITHUB	100	2026-09-21
DeepSeek-Bot	GITHUB	99	2026-10-07
Deep Interactions — Collaborative AI Builder for Teams	YC	98	2026-05-18
Showboat and Rodney, so agents can demo what they've built	HN	91	2026-02-10
agent-tincan	GITHUB	84	2026-09-22
Clam: Semantic Firewall meets OpenClaw	YC	84	2026-02-14
Locus – Payment infrastructure for AI agents	YC	84	2025-10-31
BentoLabs AI: Monitoring and Learning layer for long-running agents	YC	83	2026-06-01
Agent-skills-eval	HN	79	2026-05-07
anti-samcheonpo	GITHUB	79	2026-10-07
Fez	PH	75	2026-09-22
PiDurableKit	GITHUB	74	2026-10-08
AstrLink	GITHUB	74	2026-09-22
Simreal-MLBench	GITHUB	71	2026-09-21
aibuildai-llm-posttrain-agent	GITHUB	66	2026-09-16
Dayjob: AI Agents for Industrial Logistics	YC	65	2026-04-23
Sentry	GITHUB	65	2026-10-02
Belvedir: Making private AI models cheap and easy so the world can have trillions of them	YC	64	2026-08-11
Allowance: Virtual cards for AI agents	YC	62	2026-05-22
NanoMuse	HN	62	2026-10-07
Archal: API sandboxes, built for AI agents	YC	61	2026-08-22
Cortico	GITHUB	60	2026-09-13
ai-landing-consultant	GITHUB	59	2026-09-16
ai-agent-gateway	GITHUB	59	2026-10-01