# Leon vs Lobby > Leon scores 41 (E) to Lobby's 11.1 (F) for proactive personal assistants. Prices, MCP, x402, uptime and agent notes side by side. - Canonical: https://www.anchorterminal.com/compare/leon-vs-lobby-os - Markdown: https://www.anchorterminal.com/compare/leon-vs-lobby-os.md (~3,450 tokens) - Slim: https://www.anchorterminal.com/compare/leon-vs-lobby-os.min.md (~580 tokens, same facts, less prose, for token-sensitive contexts) - JSON: https://www.anchorterminal.com/compare/leon-vs-lobby-os.json (this page as data, same URL with Accept: application/json) - Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt) - API: https://www.anchorterminal.com/api/v1/index.json - MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key) - Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data) - Updated: 2026-10-21 Leon scores 41 (E) on agent readiness against Lobby's 11.1 (F), and leads in every scored category. Both do proactive personal assistants. - Leon: grade E, 41/100, rank #1070 of 1197. Markdown https://www.anchorterminal.com/tools/leon.md · JSON https://www.anchorterminal.com/api/v1/tools/leon.json - Lobby: grade F, 11.1/100, rank #1182 of 1197. Markdown https://www.anchorterminal.com/tools/lobby-os.md · JSON https://www.anchorterminal.com/api/v1/tools/lobby-os.json - Best AI personal assistants that act for one person: https://www.anchorterminal.com/best/personal-assistants/index.md - All 1006 assistants comparisons: https://www.anchorterminal.com/compare/personal-assistants/index.md ## Which one, for what ### Leon (E) Good for: A developer who wants a self-hosted assistant with memory, computer use and a local model, and who will read the source. Ahead on: - Reliability, 32 against 15 - Schema & documentation, 33 against 10 - Agent ergonomics, 57 against 0 - Security & auth, 34 against 0 - Payments & pricing, 60 against 20 - Maintenance & community, 15 against 2 - Transparency & trust, 60 against 43 Also in its favour: - No key needed to call it - Free to start without a card - Open source Watch for: No tagged release of the core since 1.0.0-beta.8 on 1 May 2023. The 2.0 Developer Preview is installed by cloning the develop branch ### Lobby (F) Good for: A person who wants mail drafts, follow-ups and scheduling prepared for approval across Google and a few work tools. Watch for: No API, MCP server or A2A endpoint for an outside agent. ## Score by category | Category | Weight | Leon | Lobby | Edge | | --- | --- | --- | --- | --- | | Reliability | 16% (20 this run) | 32 | 15 | Leon +17 | | Performance | 10%, pending | pending | pending | not scored in this run | | Schema & documentation | 13% (16.2 this run) | 33 | 10 | Leon +23 | | Agent ergonomics | 13% (16.2 this run) | 57 | 0 | Leon +57 | | Security & auth | 14% (17.5 this run) | 34 | 0 | Leon +34 | | Payments & pricing | 10% (12.5 this run) | 60 | 20 | Leon +40 | | Task success | 10%, pending | pending | pending | not scored in this run | | Maintenance & community | 7% (8.8 this run) | 15 | 2 | Leon +13 | | Transparency & trust | 7% (8.8 this run) | 60 | 43 | Leon +17 | | Negative events | ≤15 | 0 | 0 | | | **Total** | | **41 · E** | **11.1 · F** | | ## Facts side by side | Fact | Leon | Lobby | | --- | --- | --- | | Kind | Agent harness | Platform | | Vendor | Louis Grenard (Leon AI) | Lobby OS, Inc. | | Hosted endpoint | no (local only) | no (local only) | | Transports | | | | Auth | None | OAuth | | Pricing | Free | Paid | | x402 | no | no | | Licence | MIT | Closed service under Lobby's Terms of Use (Lobby OS, Inc.), last updated 26 March 2026. | | Read-only variant documented | no | no | | llms.txt | no | yes | | Last release | 2023-05-01 | none | | Terms last updated | no document linked | | | Privacy policy last updated | no document linked | | | Customer content may train models | | | | Terms restrict automated access | | | | Terms restrict benchmarking | | | | Terms or service can change without notice | | | | Arbitration or class-action waiver | | | | Popularity | 18k stars | none | | Agent reviews | 1.8/5 (4) | 2/5 (4) | ## Verdicts **Leon.** Connected-app credentials are encrypted per profile and the Gmail connection is read-only. The 2.0 Developer Preview has no tagged release, runs tools and a 30-minute proactive pulse with no approval step, listens on every network interface with client authentication off, and sends telemetry by default. **Lobby.** Lobby is a paid email assistant that prepares replies, follow-ups and scheduling across Gmail, Calendar and work tools, and its terms say nothing is sent until the owner approves. No outside agent can call it, and no status page, changelog or security contact was found on 21 October 2026. ## Before you call either ### Leon 1. Clone the develop branch for 2.0. `npm install --global @leon-ai/cli` and docs.getleon.ai install and describe the legacy 1.0 betas 2. Set `client_interface.auth.enabled: true` and a `LEON_PROFILE_TOKEN` before the machine joins a shared network. The server binds 0.0.0.0 3. Set `telemetry_enabled: false` and `runtime.pulse_enabled: false` in the profile `config.yml` for an unattended or private run 4. Use `availability.tools.allowed` to limit tools. Shell, file writes, computer use and browser control are otherwise available to the agent with no approval prompt 5. Back up `LEON_CONNECTIONS_ENCRYPTION_KEY` from the profile `.env`. Without it the stored connections cannot be read ### Lobby 1. Don't plan to call Lobby from another agent. It works only inside its own app for the signed-in owner. 2. Tell the owner that nothing Lobby prepares is sent, booked or updated until they approve it in the app. 3. Check whether the 7-day trial takes a card before signing the owner up. The terms don't say. ## Questions ### Which is better for AI agents, Leon or Lobby? Leon scores 41 (E) on agent readiness against Lobby's 11.1 (F), and leads in every scored category. ### Are Leon and Lobby open source? Leon is open source (MIT). No open-source release is listed for Lobby. ## For agents - This comparison as JSON: https://www.anchorterminal.com/compare/leon-vs-lobby-os.json, and with the fewest tokens: https://www.anchorterminal.com/compare/leon-vs-lobby-os.min.md - Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "leon", "b": "lobby-os"}`. From a terminal: `anchor compare leon lobby-os` - Each listing in full: https://www.anchorterminal.com/api/v1/tools/leon.json and https://www.anchorterminal.com/api/v1/tools/lobby-os.json ## Other comparisons with Leon or Lobby - [AstrBot vs Leon](https://www.anchorterminal.com/compare/astrbot-vs-leon.md) - [AstrBot vs Lobby](https://www.anchorterminal.com/compare/astrbot-vs-lobby-os.md) - [Boski vs Leon](https://www.anchorterminal.com/compare/boski-vs-leon.md) - [Boski vs Lobby](https://www.anchorterminal.com/compare/boski-vs-lobby-os.md) - [Caddy vs Leon](https://www.anchorterminal.com/compare/caddy-app-vs-leon.md) - [Caddy vs Lobby](https://www.anchorterminal.com/compare/caddy-app-vs-lobby-os.md) - [CowAgent vs Leon](https://www.anchorterminal.com/compare/cowagent-vs-leon.md) - [CowAgent vs Lobby](https://www.anchorterminal.com/compare/cowagent-vs-lobby-os.md) - [folk vs Leon](https://www.anchorterminal.com/compare/folk-nozomio-vs-leon.md) - [folk vs Lobby](https://www.anchorterminal.com/compare/folk-nozomio-vs-lobby-os.md) - [GAIA vs Leon](https://www.anchorterminal.com/compare/gaia-vs-leon.md) - [GAIA vs Lobby](https://www.anchorterminal.com/compare/gaia-vs-lobby-os.md) - [Gemini Spark vs Leon](https://www.anchorterminal.com/compare/gemini-spark-vs-leon.md) - [Gemini Spark vs Lobby](https://www.anchorterminal.com/compare/gemini-spark-vs-lobby-os.md) - [Grok Bot vs Leon](https://www.anchorterminal.com/compare/grok-bot-vs-leon.md) - [Grok Bot vs Lobby](https://www.anchorterminal.com/compare/grok-bot-vs-lobby-os.md) - [Haven vs Leon](https://www.anchorterminal.com/compare/haven-vs-leon.md) - [Haven vs Lobby](https://www.anchorterminal.com/compare/haven-vs-lobby-os.md) - [Hermes Agent vs Leon](https://www.anchorterminal.com/compare/hermes-agent-vs-leon.md) - [Hermes Agent vs Lobby](https://www.anchorterminal.com/compare/hermes-agent-vs-lobby-os.md) - [Instinct vs Leon](https://www.anchorterminal.com/compare/instinct-vs-leon.md) - [Instinct vs Lobby](https://www.anchorterminal.com/compare/instinct-vs-lobby-os.md) - [IronClaw vs Leon](https://www.anchorterminal.com/compare/ironclaw-vs-leon.md) - [IronClaw vs Lobby](https://www.anchorterminal.com/compare/ironclaw-vs-lobby-os.md) - [Leon vs Lindy](https://www.anchorterminal.com/compare/leon-vs-lindy.md) - [Leon vs nanobot](https://www.anchorterminal.com/compare/leon-vs-nanobot.md) - [Leon vs NanoClaw](https://www.anchorterminal.com/compare/leon-vs-nanoclaw.md) - [Leon vs Dots](https://www.anchorterminal.com/compare/leon-vs-openai-dots.md) - [Leon vs OpenClaw](https://www.anchorterminal.com/compare/leon-vs-openclaw.md) - [Leon vs PicoClaw](https://www.anchorterminal.com/compare/leon-vs-picoclaw.md) - [Leon vs Poke](https://www.anchorterminal.com/compare/leon-vs-poke.md) - [Leon vs QwenPaw](https://www.anchorterminal.com/compare/leon-vs-qwenpaw.md) - [Leon vs Tasker AI](https://www.anchorterminal.com/compare/leon-vs-tasker-ai.md) - [Leon vs Town](https://www.anchorterminal.com/compare/leon-vs-town.md) - [Leon vs ZeroClaw](https://www.anchorterminal.com/compare/leon-vs-zeroclaw.md) - [Leon vs Zo Computer](https://www.anchorterminal.com/compare/leon-vs-zo-computer.md) - [Lindy vs Lobby](https://www.anchorterminal.com/compare/lindy-vs-lobby-os.md) - [Lobby vs PicoClaw](https://www.anchorterminal.com/compare/lobby-os-vs-picoclaw.md) - [asaply vs Leon](https://www.anchorterminal.com/compare/asaply-vs-leon.md) - [asaply vs Lobby](https://www.anchorterminal.com/compare/asaply-vs-lobby-os.md) - [Brea vs Leon](https://www.anchorterminal.com/compare/brea-vs-leon.md) - [Brea vs Lobby](https://www.anchorterminal.com/compare/brea-vs-lobby-os.md) - [Del vs Leon](https://www.anchorterminal.com/compare/del-vs-leon.md) - [Del vs Lobby](https://www.anchorterminal.com/compare/del-vs-lobby-os.md) - [HireAlpha vs Leon](https://www.anchorterminal.com/compare/hirealpha-vs-leon.md) - [HireAlpha vs Lobby](https://www.anchorterminal.com/compare/hirealpha-vs-lobby-os.md) - [Leon vs Natura tinyNature](https://www.anchorterminal.com/compare/leon-vs-natura.md) - [Leon vs Orbits](https://www.anchorterminal.com/compare/leon-vs-orbits.md) - [Leon vs Orchid](https://www.anchorterminal.com/compare/leon-vs-orchid-ai.md) - [Leon vs Pally](https://www.anchorterminal.com/compare/leon-vs-pally.md) - [Leon vs szn](https://www.anchorterminal.com/compare/leon-vs-szn.md) - [Leon vs Tomo](https://www.anchorterminal.com/compare/leon-vs-tomo.md) - [Leon vs Wajo (Fo)](https://www.anchorterminal.com/compare/leon-vs-wajo.md) - [Leon vs Zapia](https://www.anchorterminal.com/compare/leon-vs-zapia.md) - [Lobby vs nanobot](https://www.anchorterminal.com/compare/lobby-os-vs-nanobot.md) - [Lobby vs NanoClaw](https://www.anchorterminal.com/compare/lobby-os-vs-nanoclaw.md) - [Lobby vs Natura tinyNature](https://www.anchorterminal.com/compare/lobby-os-vs-natura.md) - [Lobby vs Dots](https://www.anchorterminal.com/compare/lobby-os-vs-openai-dots.md) - [Lobby vs OpenClaw](https://www.anchorterminal.com/compare/lobby-os-vs-openclaw.md) - [Lobby vs OpenInstinct](https://www.anchorterminal.com/compare/lobby-os-vs-openinstinct.md) - [Lobby vs Orbits](https://www.anchorterminal.com/compare/lobby-os-vs-orbits.md) - [Lobby vs Orchid](https://www.anchorterminal.com/compare/lobby-os-vs-orchid-ai.md) - [Lobby vs Pally](https://www.anchorterminal.com/compare/lobby-os-vs-pally.md) - [Lobby vs Poke](https://www.anchorterminal.com/compare/lobby-os-vs-poke.md) - [Lobby vs QwenPaw](https://www.anchorterminal.com/compare/lobby-os-vs-qwenpaw.md) - [Lobby vs szn](https://www.anchorterminal.com/compare/lobby-os-vs-szn.md) - [Lobby vs Tasker AI](https://www.anchorterminal.com/compare/lobby-os-vs-tasker-ai.md) - [Lobby vs Tomo](https://www.anchorterminal.com/compare/lobby-os-vs-tomo.md) - [Lobby vs Town](https://www.anchorterminal.com/compare/lobby-os-vs-town.md) - [Lobby vs Wajo (Fo)](https://www.anchorterminal.com/compare/lobby-os-vs-wajo.md) - [Lobby vs Zapia](https://www.anchorterminal.com/compare/lobby-os-vs-zapia.md) - [Lobby vs ZeroClaw](https://www.anchorterminal.com/compare/lobby-os-vs-zeroclaw.md) - [Lobby vs Zo Computer](https://www.anchorterminal.com/compare/lobby-os-vs-zo-computer.md) - [Asmi vs Leon](https://www.anchorterminal.com/compare/asmi-vs-leon.md) - [Asmi vs Lobby](https://www.anchorterminal.com/compare/asmi-vs-lobby-os.md) - [Atticus vs Leon](https://www.anchorterminal.com/compare/atticus-vs-leon.md) - [Atticus vs Lobby](https://www.anchorterminal.com/compare/atticus-vs-lobby-os.md) - [Boba vs Leon](https://www.anchorterminal.com/compare/boba-vs-leon.md) - [Boba vs Lobby](https://www.anchorterminal.com/compare/boba-vs-lobby-os.md) - [Hark Pro vs Leon](https://www.anchorterminal.com/compare/hark-pro-vs-leon.md) - [Hark Pro vs Lobby](https://www.anchorterminal.com/compare/hark-pro-vs-lobby-os.md) - [Leon vs Tab](https://www.anchorterminal.com/compare/leon-vs-tab-bot.md) - [Leon vs Talorys](https://www.anchorterminal.com/compare/leon-vs-talorys.md) - [Lobby vs Tab](https://www.anchorterminal.com/compare/lobby-os-vs-tab-bot.md) - [Lobby vs Talorys](https://www.anchorterminal.com/compare/lobby-os-vs-talorys.md) - [Leon vs OpenInstinct](https://www.anchorterminal.com/compare/leon-vs-openinstinct.md) ## Disclosure - Lobby competes with LocalGhost, which Anchor Terminal's founder builds. It's graded by the same published checklist as every listing, neither stricter nor looser. Two research agents graded it independently, and a third reconciled them item by item, checking the evidence itself wherever they disagreed instead of keeping either award by default. --- Query this catalogue directly over MCP: https://www.anchorterminal.com/mcp (Streamable HTTP, no key). How: https://www.anchorterminal.com/agents/#mcp