Best Alternatives to ar
MCP Servers·★ 16·Apache-2.0
Agent Receipts — cryptographically signed audit trails for AI agent actions. Protocol spec, SDKs (Go, TypeScript, Python), and MCP proxy.
#agent-receipts#ai#ai-agents#audit#cryptography#ed25519#golang#mcp
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Best Alternatives to ar
ToolDescriptionStarsLicenseUpdated
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stackql
stackqlQuery, provision and operate Cloud and SaaS resources and APIs using an extensible SQL based framework
★ 843
MIT
Today
Details →02
awesome-claude
awesome-claudeHeyClaude is a curated registry and distribution surface for Claude and AI-workflow assets: agents, MCP servers, skills, commands, hooks, rules, guides, tools, jobs, Raycast feeds, static data exports, and an npm MCP package.
★ 250
MIT
1d ago
Details →03
three.ws
three.wsOpen-source 3D AI agent framework — GLB/glTF avatars with LLM brains, memory, emotions, and autonomous payments. MCP server · x402 · Solana/EVM · Three.js. Embed anywhere as a web component. Character studio, animation gallery, OAuth 2.1. Browser-native.
★ 40
NOASSERTION
1d ago
Details →04
initrunner
initrunnerDefine AI agent roles in YAML and run them anywhere: CLI, API server, or autonomous daemon
★ 38
Apache-2.0
1d ago
Details →05
Navidrome-MCP
Navidrome-MCPAnalyze listening patterns, build playlists, find missing albums, discover similar artists via Last.fm, fetch synced lyrics, and explore global radio. Play it all through your speakers via mpv, with a built-in web UI that makes any device with a brower act as a remote. Gives full control of your Navidrome library using natural language.
★ 72
AGPL-3.0
1d ago
Details →06
beatos
beatosLocal-first beat library for music producers. MCP server (Claude Code / Claude Desktop) for AI-driven cataloging, tagging, and multi-platform publishing.
★ 22
Apache-2.0
Today
Details →07
darwin-agentic-cloud
darwin-agentic-cloudVerifiable and free cloud compute for AI agents. webMCP + MCP. Sandboxed Beta + Research: 6/1/2026
★ 13
Apache-2.0
Today
Details →08
itglue-mcp
itglue-mcpMCP server for IT Glue — documentation, passwords, configurations, and flexible asset tools for AI assistants
★ 11
Apache-2.0
Today
Details →02
Side-by-Side Comparison
| Field | ar | stackql | awesome-claude | three.ws |
|---|---|---|---|---|
| Category | MCP Servers | MCP Servers | MCP Servers | MCP Servers |
| Stars | ★ 16 | ★ 843 | ★ 250 | ★ 40 |
| License | Apache-2.0 | MIT | MIT | NOASSERTION |
| Updated | 1d ago | Today | 1d ago | 1d ago |
| Open Source | Yes | Yes | Yes | Yes |
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Compare ar With Others
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FAQ
What is 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.
What is the best alternative to ar?
stackql is the top-rated alternative to ar in the MCP Servers category.
Is there a free alternative to ar?
stackql is a free, open-source alternative.
Is ar open source?
Yes, ar is open source on GitHub, licensed under Apache-2.0.