ar
★ 16
vs
holaOS
★ 5.4k
ar vs holaOS
ar: Agent Receipts is an open protocol for generating cryptographically signed audit trails for AI agent actions. It provides SDKs in Go, TypeScript, and Python, plus an MCP proxy that intercepts and signs agent tool calls using Ed25519 signatures. The receipts can be verified independently, enabling accountability and traceability in agentic systems.; holaOS: holaOS is an agent environment built for long-horizon work, continuity, and self-evolution. It provides agents with a structured operating system including runtime, memory, tools, apps, and durable state, enabling them to operate continuously, evolve over time, and remain inspectable across different runs.
01
TL;DR
Choose ar if…Audit AI agent actions in production for compliance and accountability
Choose holaOS if…Building agents that perform complex, multi-step tasks over extended periods
02
Side-by-Side Comparison
03
Features
ar01Cryptographically signed receipts for every agent tool call using Ed25519
02MCP proxy that transparently intercepts and signs all tool invocations
03SDKs in Go, TypeScript, and Python for direct integration
04Tamper-evident audit trail with verifiable signatures
05Protocol spec for cross-platform interoperability
holaOS01Structured operating system for agents
02Designed for long-horizon work and continuity
03Enables agents to self-evolve over time
04Provides durable state and memory for continuous operation
05Offers inspectable state across multiple runs
04
Use Cases
ar↳Audit AI agent actions in production for compliance and accountability
↳Verify that agent tool calls were not tampered with after the fact
↳Build trust layers into multi-agent pipelines with signed receipts
holaOS↳Building agents that perform complex, multi-step tasks over extended periods
↳Developing continuously learning and evolving AI systems
↳Creating custom workspace applications on top of the holaOS environment
05
Best For
arHidden GemSecurity & Safety
holaOSTrendingMulti-AgentLLM Infra
FAQ
FAQ
What is the difference between ar and holaOS?
Both ar and holaOS are in the MCP Servers category. ar has 16 stars, while holaOS has 5.4k stars.
Which is better, ar or holaOS?
The best choice depends on your use case. Choose ar if Audit AI agent actions in production for compliance and accountability, and holaOS if Building agents that perform complex, multi-step tasks over extended periods.
Is ar free or open source?
Yes, ar is open source on GitHub (Apache-2.0).
Is holaOS free or open source?
Yes, holaOS is open source on GitHub (MIT).
→